Which of thee i equal to co 47°?
Repone
A in 43°in 43°
B co 133°co 133°
C tan 43°tan 43°
D co 43°

Answers

Answer 1

Option (A) cos 47° is equal to sin 43°.

What is cos in trigonometry ?

The cos meaning in trigonometry defines the cosine of an angle. This angle is an acute angle in a right angled triangle, which is considered to find the ratios. Thus, cosine of an angle, in a right-triangle, is equal to the ratio of adjacent side of that angle and hypotenuse of the triangle.

What is sin in trigonometry ?

In trigonometry, the sine function can be defined as the ratio of the length of the opposite side to that of the hypotenuse in a right-angled triangle. The sine function is used to find the unknown angle or sides of a right triangle.

Have given,

cos 47°,

We know that cos x = sin (90 - x),

Thus cos 47° = sin (90 - 47)

cos 47° = sin 43°

Therefore, cos 47° is equal to sin 43°.

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Answer 2

cos 47°,

We know that cos x = sin (90 - x),

Thus cos 47° = sin (90 - 47)

cos 47° = sin 43°

Therefore, cos 47° is equal to sin 43°.


Related Questions

How do you know what method SSS SAS ASA AAS to use when proving triangle congruence?

Answers

We can find out which method SSS, SAS, ASA, and AAS can be used to prove similarity by observing what three components are given.

If it is given that three sides are equal then we will use side side side(SSS) postulate.

If it is given that two sides and one angle is given then we will use the side angle side(SAS) postulate.

If two angles and one side is given then we will use the angle side angle (ASA) postulate.

To find which postulate will suit for that we will have to observe which components are given that are equal.

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12 pencils cost 1.80 pounds. How many pencils can be bought for 6 pounds?

Answers

Answer:

Step-by-step explanation:i think to answer is either 90p or 9p

Answer:

90p or 9p

Step-by-step explanation:

If a1 = 3, an+1 = 2an, find a2.​

Answers

Answer:

a2=0

Step-by-step explanation:

a=2

n=0.5

2a=0

2.2=0

4=0

2a=0

Why is 1 not a square number?

Answers

According to square numbers , 1 is a square number while 2 is not .

What does Squaring mean ?

In mathematics, a square is the result of multiplying a number by itself. The verb "to square" is used to denote this operation. Squaring is the same as raising to the power 2, and is denoted by a superscript 2; for instance, the square of 3 may be written as 32, which is the number 9.

When you multiply an integer (a “whole” number, positive, negative or zero) times itself, the resulting product is called a square number, or a perfect square or simply “a square.” So, 0, 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, and so on, are all square numbers.

Thus , 1 is a square number while 2 is not .

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Evaluate the quantity of x cubed minus 2x squared plus 3x minus 7 end quantity divided by the quantity of x minus 1 end quantity period.

Answers

Our final resulting answer will be -5.

To calculate the remainder, first divide the polynomials.

Set up the polynomials to be divided. if there is not a term for every exponent, insert one with a value of 0.

[tex]\sqrt[x-1]{x^{3}-2x^{2} +3x-7 }[/tex]

Divide the highest order term in the dividend [tex]x^{3}[/tex] by the highest order term in divisor x.

Multiply the new quotient term by the divisor.

The expression needs to be subtracted from the dividend, so change all the signs [tex]x^{3}[/tex]+[tex]x^{2}[/tex].

After changing the signs, add the last dividend from the multiplied polynomials to find the new dividend.

Pull the next terms from the original dividend down into the current dividend.

Divide the highest order term in the dividend -[tex]x^{2}[/tex] by the highest order term in divisor x.

Multiply the new quotient term by the divisor.

The expression needs to be subtracted from the dividend, so change all the signs in -[tex]x^{2}[/tex]-x.

After changing the signs, add the last dividend from the multiplied polynomial to find the new dividend.

Pull the next terms from the original dividend down into the current dividend.

Divide the highest order term in the dividend 2x by the highest order in divisor x.

Multiply the new quotient term by the divisor.

The expression needs to be subtracted from the dividend, so change all the signs in -2x+2.

After changing the signs, add the last dividend from the multiplied polynomial to find the new dividend.

The final answer is the quotient plus the remainder over the divisor.

[tex]x^{2}[/tex]-x+2-[tex]\frac{5}{x-1}[/tex]

Since the last term in the resulting expression is a fraction, the numerator of the fraction is the remainder.

So, our final answer will be -5.

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In a survey of students about favorite​ sports, the results include 34 who like​ tennis, 37 who like​ football, 17 who like tennis and​ football, 21 who like tennis and​ baseball, 25 who like football and​ baseball, 9 who like all three​ sports, and 7 who like none of the sports. How many students like only tennis and​ football?

please help me on this ;-;

Answers

8 students like only tennis and​ football. When, In a survey of students about favorite​ sports, the results include 34 who like​ tennis, 37 who like​ football, 17 who like tennis and​ football, 21 who like tennis and​ baseball, 25 who like football and​ baseball, 9 who like all three​ sports, and 7 who like none of the sports.

Define algebra.

One of the earliest areas of mathematics that deals with number theory, geometry, and analysis is algebra. Algebra is also defined as the study of mathematical rules and symbols through the manipulation of those mathematical symbols. The area of mathematics known as algebra is used to portray situations or problems using mathematical expressions. In algebra, we utilize integers with fixed or definite values, such as 2, 7, 0.068, etc. In algebra, we combine integers with variables like x, y, and z.

Given

Number of student who only likes tennis and football

= number of student likes only tennis and football - who like all three sports

= 17 - 9

= 8

8 students like only tennis and​ football. When, In a survey of students about favorite​ sports, the results include 34 who like​ tennis, 37 who like​ football, 17 who like tennis and​ football, 21 who like tennis and​ baseball, 25 who like football and​ baseball, 9 who like all three​ sports, and 7 who like none of the sports.

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What is the horizontal asymptote of f/x )= 4 x?

Answers

The given equation of the horizontal asymptote is y=0

Because there is not a rational expression so there is no horizontal asymtotes.The given equation would be linear because degree of given function is 1.

what is an Asymptote?

An asymtote is a line being approached by a curve but never touching the curve at any finite distance.It is a line that the graph approaches as either x or y in positive or negative infinity.

How do you find horizontal asymptotes?

The horizontal asympototes of a function can be determined by looking at the degree of the numerator and denominator.if we say N is the degree of numerator and Dis the degree of denominator.So it will be N<D.Then horizontal asymptotes will be y=0

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Find the missing number in this proportion. ?/8=16/64
A.0
B.1
C.2
D.3

Answers

Answer: C. 2

Evaluation:

We are required to find the equivalent fraction here. When simplifying 16/64, we divide both sides by 16:

16 ÷ 16 = 1

64 ÷ 16 = 4

16/64 in its simplest form is 1/4. When we multiply both the numerator and denominator by 2, we will find that:

1/4 = 2/8

Verification:

To verify this, we can multiply both parts of the fraction by 8:

2 × 8 = 16

8 × 8 = 64

Hence, we know our answer is correct.

s = ut + 1/2 at2
u = 10 a = -2 t= 1/2

Answers

Answer:

Step-by-step explanation:

What is domain simple answer?

Answers

A domain is a component of the nomenclature used in web addresses to identify your website or a particular page of your website online.

What is domain ?

A function's authorized range of values is known as its domain. For a function like f, this set contains of the x values (x). The set of those values represents the possible range of values that a function can take as input. The function's response to our x value entry is this group of values.

here ,

A domain is typically a sphere of knowledge or an area under one's control.

Users find it much easier to recall and search for online because it is a string of text linked to a website's numerical IP address.

Both the internet's architecture and the way a company's network resources are set up fall under the umbrella term "domain."

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If sinA + sin² A = 1, then the value of the expression (cos²A + cos¹A) is
(a) 1 (6) 1/2 (c) 2 (d) 3​

Answers

Using trigonometric identities, If sinA + sin² A = 1, then the value of the expression (cos²A + cos⁴A) is; 1

How to solve trigonometric identities?

We are told that sinA + sin² A = 1.

Now, we want to find (cos²A + cos⁴A).

From trigonometric identities, we know that;

cos²A = 1 -  sin² A

Thus;

cos²A + cos⁴A = 1 -  sin² A + cos⁴A

Similarly, using trig identities on the given expression;

From sinA + sin² A = 1, we can say that;

sinA = 1 - sin² A

Since cos²A = 1 -  sin² A, then we can say that;

sinA = cos²A

Thus;

sin²A = cos⁴A

Thus;

cos²A + cos⁴A = 1 -  sin² A +  sin²A

= sinA +  sin²A= 1

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Correct question is;

If sinA + sin² A = 1, then the value of the expression (cos²A + cos⁴A) is

passes through (6,3) and (14,-5)

Answers

Answer:

Slope: m = (y2 - y1)/(x2 - x1) = (-5 - 3)/(14 - 6) = -8/8 = -1

The equation of the line is y = -x + b

Substitute (6,3) into the equation:

3 = -6 + b

b = 9

Therefore, the equation of the line is y = -x + 9

Step-by-step explanation:

How do we get negative infinity?

Answers

Negative infinity is obtained by taking the limit of a decreasing sequence of negative real numbers as they approach negative infinity.

Negative infinity is an abstract concept that is used to represent a value that is less than the lowest possible number.  To get negative infinity, one must take the limit of a decreasing sequence of negative real numbers. This means that the sequence of numbers must get closer and closer to negative infinity as it continues to decrease. For example, if you take the sequence of numbers -1, -2, -3, -4, -5, -6, and so on, the limit of this sequence is -∞. As the sequence continues to decrease, it eventually reaches a point where the numbers become so small that they cannot be measured. At this point, the limit of the sequence is -∞.

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State a and d for the arithmetic sequence below:
1, 3, 5, 7...

a=

d=

Answers

Answer:a,9 b,11

Step-by-step explanation:

What mode of observation is 5'7 8?

Answers

The mode for a particular set of observations is 5 since it occurs the majority of the time.

What is mode?

The mode formula is described in statistics as the formula for calculating the mode of a given collection of data. The value that occurs most frequently in a particular set is referred to as the mode, and the mode differs across grouped and ungrouped data sets. The mode may be calculated quite easily. Put all of the numbers in a given set in order, either lowest to highest or highest to lowest, and then count how many times each number appears in the set. The mode is the one that appears the most.

Here,

given set of observation:

5, 7, 8, 5, 7, 6, 9, 5, 10, 6

Mode is the number which occurs the highest time.

So here 5 occurs the highest times(3 times).

So,5 is the mode.

The mode for given set of observation is 5 as it occurs most time.

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Find the distance between two numbers on a number line -4 7/12 and -3 1/6

Answers

Answer: -17/12 or -1 5/12 or 1 5/12

Step-by-step explanation:

convert both equations into improper fractions

− 55/12 - (-19/6)

-55/12+19/6

find the common factor of the denominators

-55/12 + 38/12

-17/12

-1 5/12

I can't seem to figure out what it means by characteristics for these equations, It might be more simple than I think, but I honestly don't know.

Answers

Explanation:

Characteristics about an equation are slope, intercepts, and things like that.

Part D of each problem is just referring to part a, b, and c

So, Part D is basically asking you to show your work, to explain slope-intercept equation, make observations about the problem, etc.

Hope I helped! :)

A new bank customer with $2,500 wants to open a money market account. The bank is offering a simple interest rate of 1.6%.
a. How much interest will the customer earn in 20 years?
b. What will the account balance be after 20 years?

Answers

a) The customer will earn $800 as interest in 20 years.

b) The account balance after 20 years will be - $ 3300.

Principle = $2500

Rate of simple interest = 1.6%

Time = 20 yrs

The simple interest is expressed as :

   S.I = [tex]\frac{PRT}{100}[/tex]

⇒ S.I = [tex]\frac{2500 * 1.6 * 20}{100}[/tex]

⇒ S.I = 25 * 20 *1.6

⇒ S.I = 800

The simple interest after 20 years = $800

The account balance after 20 years is -

= principle + simple interest

= 2500 + 800

=  3300

a) The customer will earn $800 as interest in 20 years.

b) The account balance after 20 years will be - $ 3300.

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Given:
CD CB CA CE   and
Prove:
   A E
You may use any style proof you prefer.

Answers

The alternate angles between two parallel lines are equal, therefore, ∠ A = ∠ E.



What is rectangle?

An enclosed 2-D shape called a rectangle has four sides, four corners, and four right angles (90°). A rectangle has equal and parallel, opposite sides. Since a rectangle is a two-dimensional form, it has two dimensions: length and width. The rectangle's longer side is its length, while its shorter side is its breadth.

Given:

CD ≅ CB and CA ≅ CE

As you can see from the diagram, on joining BE and AD the figure will represent a rectangle ABED because the diagonals of the rectangle are equal and bisect each other.

Thus, DE || AB (Rectangle property)

∠ A = ∠ E, because the alternate angle of parallel lines is equal.

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I need the answer to the second question in the picture, but can you also say if the one above it is correct or not?

Answers

The area of shaded region of standard normal distribution is 0.1292

what is standard normal distribution?

A unique type of normal distribution with a mean of 0 and a standard deviation of 1 is known as the standard normal distribution, or z-distribution.

Any normal distribution can be transformed into the common normal distribution by converting the individual values into z-scores. Z-scores indicate the number of standard deviations that each value in a z-distribution is from the mean.

solution:

For - 3.39 to 0

The standard deviation value is : 0.00035

For 0 to 1.13

The standard deviation value is : 0.3708

Then for - 3.39 to + 1.13 :

The area of the given shaded area is 0.1292

Hence,the area of shaded region of standard normal distribution is 0.1292

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Graph the line through the given point with the given slope.

(0, 5), m = - 5

(basically what coordinate points would there be?)

Answers

Answer:

The equation would be

y =-5x + 5

Step-by-step explanation:

Use the x of 0 from the point given (0,5)

Use the y of 5 from the point given (0,5)

Use the slope that is given: -5

Use all of the above to solve for the y-intercept (b).

y = mx + b

5 = -5(0) + b

5 = 0 + b

5 = b

y =mx + b

y = -5x + 5

In the graph, the line crosses the y axis at (0,5) . The is the y -intercept or the "b" of the equation.

From that points move down 5 and one to the right.  This is the slope.  Once we have two points we can draw a line.

Determine the domain and range for the function below.

Answers

Answer:

Domain: (-∞, ∞); Range: [1, ∞)

Step-by-step explanation:

Domain is the set/interval of x-values that the function spans while the range is the set or interval of y-values that the function spans.

Domain

We can see that the arrows point towards negative and positive infinity for x and also see there are no holes or asymptotes for this graph. Therefore, the domain is (-∞, ∞) or {x | x is any real number}

Range

We can see that the arrows both point towards infinity for y-values and that the lowest y-value this graph touches is y = 1 (inclusive, meaning this y-value is included in the range). Thus, the range is [1, ∞) or {y | y ≥ 1}

What type of discontinuity is a hole?

Answers

A removable discontinuity is when a function has an isolated point where it is not defined, and the function can be made continuous by removing that point. A hole is an example of a removable discontinuity.

In mathematics, a discontinuity is a point or set of points where a function does not behave as expected or fails to exist. There are three types of discontinuities: removable discontinuities, jump discontinuities, and infinite discontinuities. A removable discontinuity is when a function has an isolated point where it is not defined, and the function can be made continuous by removing that point. In other words, the function can be made continuous by “filling in” the discontinuity. An example of a removable discontinuity is a hole, where the graph has a gap that can be filled in. Jump discontinuities occur when the left-hand and right-hand limits of the function do not agree at a point, and the function “jumps” from one value to another at that point. An example of a jump discontinuity is a cusp, where the graph has a sharp point. Finally, an infinite discontinuity is when the function does not exist at a point, such as a vertical asymptote. In all three cases, the discontinuity can be easily identified by looking at the graph of the function.

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Describe a real world situation that could be modeled by the expression Y equals 1/20 XP transcribe what is

Answers

The required real-world situation has been written in the solution part which could be modeled by the expression Y equals 1/20 XP.

A real-world situation that could be modeled by the expression Y = 1/20XP is the relationship between the distance a person runs and the number of calories they burn.

In this situation, Y represents the number of calories burned and X represents the distance run in miles. The constant 1/20 represents the rate at which calories are burned per mile.

For example, if a person runs 5 miles, we can substitute 5 for X in the expression to find the number of calories they burn:

Y = 1/20 × 5X

Y = 1/4

Thus, the person burns 1/4 calorie for every mile they run.

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What are the 4 tests of congruency?

Answers

The 4 tests of congruency are:

Side - Side - Side (S.S.S. congruency)

Side - Angle - Side (S.A.S. congruency)

Angle - Angle - Side (A.A.S congruency)

Right - Hypotenuse - Side (R.H.S. congruency)

Tests of congruency:

Side - Side - Side (S.S.S. congruency)

If three sides of one triangle are equal to three sides of another triangle, the triangles are congruent.

Side - Angle - Side (S.A.S. congruency)

If two sides and the included angle of one triangle are equal to the corresponding sides and angle of another triangle, the triangles are congruent.

Angle - Angle - Side (A.A.S congruency)

If two angles and the non-included side of one triangle are equal to the corresponding angles and side of another triangle, the triangles are congruent.

Right - Hypotenuse - Side (R.H.S. congruency)

If the hypotenuse and one leg of one right-angled triangle are equal to the corresponding hypotenuse and leg of another right-angled triangle, the two triangles are congruent.

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9. Find the measure of angle B. Round to the nearest tenth. (show work)

Answers

The measure of angle 55 degrees Celsius

What is the explanation?

In order to get the measure of the unknown angle A, we are given a right-angled triangle with two known side lengths for the perpendicular and base.

To do that, we may use the tan formula, which uses the two provided side lengths.

the nearest tenth:

To get the solution in this case, we must apply the tan ratio.

tan = Adjacent or Opposite

tan = Opposite / Adjacent

Given: Opposite equals 4, adjacent equals 13.

Given: Adjacent = 13, opposite = 12.

tan θ = 12/13

θ = tan^-1 (12/13)

55 degrees.

55 degrees, please.

The measure of angle 55 degrees Celsius

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1800 ounces of a radioactive substance are stored in a radioactive container.
ounces, of the substance that is left after t years can be modeled by the equation y = 1800e-0.00052t
where y is the amount of the substance left after t years.
Approximately how many years will it take until 80 ounces of this substance remains?

Answers

According to the given statement 2.622 years will it take until 80 ounces of this substance remains.

How much does one ounce weigh?

Use a test tube holder that has an ounce marker or can be converted quickly to ounces (like cups). As you take the measuring cup from the ingredient, let it overflow. You may try and reduce measurement afterwards. Use a knife to level the measuring cup.

Briefing:

The equation may be used to predict how much of the chemical is still present after t years, measured in ounces.

y=1800e -0.00052t

In the equation above, we substitute y = 80 ounce to obtain the time.

80= 1800e -0.00052t

80/1800=e -0.00052t

2/45= e -000.52t

Considering both ends of the aforementioned equation

In(2/45)= In(e -000.52t)

In(2)-In(45)= In(e -000.52)

0.3010-1.653= -000.52t

-1.352= -000.52t

dividing by 000.52 on both side

1.352/000.52= t

t= 2.622 years

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Classifying Triangles Maze! Directions: Glven each set of side lengths, determine if the triangle is acute. obluse, night, or not a triangle. Use your solutions to navigate through the moze End! Start! Acute 6,10,17 Obtuse 26, 28, 38 Nota a 10, 17, 23 Obtuse Not a Right Not a A Obtuse Acute Right 13, 18, 29 Not a A 9,13, 20 Acute 15,19,25 Not A 4, 11, 13 Acute Right Obtuse Not a A Right Acute Obtuse 16,16, 22 Nota A 4,7,8 Acute 20, 21, 29 Obtuse 3,16,25 Obtuse Obtuse Right Not a Δ Not a Acute Not a A 5, 16, 24 Acute 19,24,39 Right 9,40,41 Obtuse 12, 35, 37 Right Not a A Acute Not a A Acute Right Acute 7,34,45 Not a 4,13,16 Right 23, 30, 37 Obtuse 14, 21, 37 on 1 Gino Won A Things Algebra LLC. 2016

Answers

Classifying triangles maze's path formed from the starting point is 3 - 10 - 17, 9 - 13 - 20, 4 - 7 - 8, 20 - 21 - 29, 15 - 19 - 25, 26 - 28 - 38, 4 - 11 - 13, 3 - 16 - 25, 12 - 35 - 37, 23 - 30 - 37, 9 - 40 - 41, 19 - 24 - 39, 16 - 16 - 22, and 13 - 18 - 29.

The full question is in the attachment. According to the Pythagorean theorem if there are three sides a, b, and c, where a ≤ b < c

a² + b² < c² an obtuse triangle is formeda² + b² = c² a right triangle is formeda² + b² > c² an acute triangle is formed

But if a + b < c then a triangle cannot be formed

From point start

3 - 10 - 17
3 + 10 = 16 < 17
not a triangle9 - 13 - 20
9 + 13 = 22 > 20 a triangle formed
9² + 13² = 81 + 169 = 250
20² = 400
9² + 13² < 20²
Obtuse4 - 7 - 8
4 + 7 = 11 > 8 a triangle formed
4² + 7² = 16 + 49 = 65
8² = 64
4² + 7² > 8²
Acute20 - 21 - 29
20 + 21 = 41 > 29 a triangle formed
20² + 21² = 400 + 441 = 841
29² = 841
20² + 21² = 29²
Right15 - 19 - 25
15 + 19 = 34 > 25 a triangle formed
15² + 19² = 225 + 361 = 586
25² = 625
15² + 19² < 25²
Obtuse26 - 28 - 38
26 + 28 = 54 > 38 a triangle formed
26² + 28² = 676 + 784 = 1,460
38² = 1,444
26² + 28² > 38²
Acute4 - 11 - 13
4 + 11 = 15 > 13 a triangle formed
4² + 11² = 16 + 121 = 140
13² = 169
4² + 11² < 13²
Obtuse3 - 16 - 25
3 + 16 = 19 < 25
not a triangle12 - 35 - 37
12 + 35 = 47 > 37 a triangle formed
12² + 35² = 144 + 1,225 = 1,369
37² = 1,369
12² + 35² = 37²
Right23 - 30 - 37
23 + 30 = 53 > 37 a triangle formed
23² + 30² = 529 + 900 = 1,429
37² = 1,369
23² + 30² > 37²
Acute9 - 40 - 41
9 + 40 = 49 > 41 a triangle formed
9² + 40² = 81 + 1,600 = 1,681
41² = 1,681
9² + 40² = 41²
Right19 - 24 - 39
19 + 24 = 43 > 39 a triangle formed
19² + 24² = 361 + 576 = 937
39² = 1,521
19² + 24² < 39²
Obtuse16 - 16 - 22
16 + 16 = 32 > 22 a triangle formed
16² + 16² = 256 + 256 = 512
22² = 484
16² + 16² > 22²
Acute13 - 18 - 29
13 + 18 = 31 > 29 a triangle formed
13² + 18² = 169 + 324 = 493
29² = 841
13² + 18² < 29²
ObtuseEndpoint

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2. The total surface area of a square based pyramid is 900 sq. cm. If the lateral surface area of the pyramid is three times the base area, find the length of the base. Also find the volume of the pyramid.​

Answers

Answer:

Length of the base = 15 cm

Volume = 1125√2 cm³ = 1590.99 cm³ (2 d.p.)

Step-by-step explanation:

[tex]\boxed{\begin{minipage}{6.6cm}\underline{Lateral Surface Area of a square pyramid}\\\\$LSA=a \sqrt{a^2+4h^2}$\\\\where:\\\phantom{ww}$\bullet$ $a$ is the base edge \\\phantom{ww}$\bullet$ $h$ is the height\\\end{minipage}}[/tex]

[tex]\boxed{\begin{minipage}{6.6cm}\underline{Base Area of a square pyramid}\\\\$BA=a^2$\\\\where:\\\phantom{ww}$\bullet$ $a$ is the base edge \\\end{minipage}}[/tex]

If the lateral surface area (LSA) of the pyramid is three times the base area (BA):

[tex]\implies a \sqrt{a^2+4h^2}=3a^2[/tex]

Rearrange the equation to isolate h²:

[tex]\implies \sqrt{a^2+4h^2}=3a[/tex]

[tex]\implies (\sqrt{a^2+4h^2})^2=(3a)^2[/tex]

[tex]\implies a^2+4h^2=9a^2[/tex]

[tex]\implies 4h^2=8a^2[/tex]

[tex]\implies h^2=2a^2[/tex]

[tex]\boxed{\begin{minipage}{6.6cm}\underline{Total Surface Area of a square pyramid}\\\\$SA=a^2+a \sqrt{a^2+4h^2}$\\\\where:\\\phantom{ww}$\bullet$ $a$ is the base edge \\\phantom{ww}$\bullet$ $h$ is the height\\\end{minipage}}[/tex]

Given:

SA = 900 cm²h² = 2a²

Substitute these values into the formula for the total surface area and solve for a:

[tex]\implies a^2+a\sqrt{a^2+4(2a^2)}=900[/tex]

[tex]\implies a^2+a\sqrt{a^2+8a^2}=900[/tex]

[tex]\implies a^2+a\sqrt{9a^2}=900[/tex]

[tex]\implies a^2+a(3a)=900[/tex]

[tex]\implies a^2+3a^2=900[/tex]

[tex]\implies 4a^2=900[/tex]

[tex]\implies a^2=225[/tex]

[tex]\implies a=15[/tex]

Therefore, the length of the base of the square based pyramid is:

a = 15 cm

To find the height (h), substitute the found value of a into the formula for h² and solve for h:

[tex]\implies h^2=2(15)^2[/tex]

[tex]\implies \sqrt{h^2}=\sqrt{2(15)^2}[/tex]

[tex]\implies h=\sqrt{2}\sqrt{(15)^2}[/tex]

[tex]\implies h=15\sqrt{2}[/tex]

Therefore, the height of the square based pyramid is:

h = 15√2 cm

[tex]\boxed{\begin{minipage}{5cm}\underline{Volume of a square pyramid}\\\\$V=\dfrac{1}{3}a^2h$\\\\where:\\\phantom{ww}$\bullet$ $a$ is the base edge \\\phantom{ww}$\bullet$ $h$ is the height\\\end{minipage}}[/tex]

Given:

a = 15h = 15√2

Substitute the values into the formula and solve for volume:

[tex]\implies V=\dfrac{1}{3}(15)^2 \cdot 15\sqrt{2}[/tex]

[tex]\implies V=\dfrac{225}{3} \cdot 15\sqrt{2}[/tex]

[tex]\implies V=75\cdot 15\sqrt{2}[/tex]

[tex]\implies V=1125\sqrt{2}[/tex]

[tex]\implies V=1590.99[/tex]

Therefore, the volume of the square based pyramid is:

1590.99 cm³ (2 d.p.)

May I ask what’s the answer to this MC question because what I've calculated is 36 to the power 222 which giant matched the above choices

Answers

Answer:

B

Step-by-step explanation:

16 = 2⁴

9 = 3²

(2⁴)¹¹¹ × (3²)²²² = 2⁴⁴⁴ × 3⁴⁴⁴ = (2×3)⁴⁴⁴ = 6⁴⁴⁴

you can only combine the exponents of the same bases, or the bases of the same exponent.

in our case here the latter is used.

and indeed

6⁴⁴⁴ = (6²)²²² = 36²²²

so, essentially you were right. but you still needed to transform this into the form of the given answer option.

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