Answer:
.
Step-by-step explanation:
Answer:
Step-by-step explanation:
One number is 5 more than another number. Three times the first plus twice the second is 30.Find the numbers.
x = first number
y = second number
x=y+5
3x +2y = 30
lets substitute x=y+5 in the second equation for x;
3(y+5) + 2y =30
3y + 15 + 2y = 30
5y + 15 =30
5y = 30 -15
5y = 15
y = 3
Now that we have y lets plug that answer into either equation for y;
x = 3 + 5
x = 8
:) if I’m wrong I’m very sorry.
If a parcel of land originally worth $35,000 increases in values 18% per year, what will the land be worth about in the eighth year?
Answer:
131560.072
Step-by-step explanation:
Because it is increase so we add humdred to the percent and then divide by hundred - 18+100/100 = 1.18
eight years - 1.18 raised to the pwer of 8
worth - 35000
hence it will be - 1.18 raised to the power of 8 x 35000
thank you
5* Le terrain de M. Campo mesure 1250 m².
C'est 450 m² de plus que celui de M. Vergne.
Quelle est la superficie du terrain de
M. Vergne ?
Answer:
800 m^2
Step-by-step explanation:
= 1250 - 450
= 800 m^2 est la superficie de la terre de M. Vergne
j'espère que ma réponse t'aidera.
What is root 4 called?
The root 4 is called quad root.
When a number is raised to the root 4, then it is called quad root of that number as the term quad in Latin refers to 4, just the way when a number is raised to the root 2 it is called square root of that number, when a number is raised to the root 3, it is called cube root of that number.
For example, the quad root of the number 256 is (256) ^1/4 which results to 4 as the answer since 4 x 4 x 4 x 4 = 256.
To know more about roots:
https://brainly.com/question/29286039
#SPJ4
Name:
IP: ACP Rev
1. A downtown shop rents scooters for a one-time
cost of $20.50 plus $7.50 per hour. Which equation
can be used to find y, the total cost that a group of
people must pay to rent x scooters for 8 hours?
The Total Cost that people must pay to rent x scooters is given by the equation y = 80.5x
What is Linear Equation in Two Variables?
A linear equation in two variables is one that is stated in the form ax + by + c = 0, where a, b, and c are real integers and the coefficients of x and y, i.e. a and b, are not equal to zero.
Solution:
Total Cost = y
Number of Scooters Rented = x
y = (20.5$ + 7.5*8 $)x
y = (20.5 + 60)x
y = 80.5x
To learn more about Linear Equation in Two Variables from the given link
https://brainly.com/question/24085666
#SPJ1
What is the first value of x?
When an initial/input value is zero, the output of a function is its initial value.
Define the initial/first value of x for the function?The starting value represents the input at zero, whereas the rate of change relates to how rapidly the output varies in respect to the input.
How quickly the output alters in relation to the input is referred to as a function's rate of change. This is similar to how quickly the y-value shifts with relation to the x-value on a graph.You can use the changing rate to ascertain additional details about the function once you are aware of it. Making predictions about the behavior of the function for different input values is one thing you can accomplish using the rate of change.Thus, if x = 0 in a function, the initial value is defined. It serves as the scenario's beginning point in real life.
A linear equation's y-intercept is frequently thought of as initial value of the function.
To know more about the function, here
https://brainly.com/question/11624077
#SPJ4
Cali baked a box of brownies. she took some to school but left 2/3 at home for her brothers. her brother, todd, had eaten 1/4 of what she left. what portion of the entire pan did todd eat?
Answer:
1/6 pan
Step-by-step explanation:
You want to know the portion of the whole represented by 1/4 of 2/3.
Fraction of fractionTodd ate 1/4 of 2/3 of the pan of brownies. That fraction of the original whole amount is ...
(1/4)×(2/3) = (1·2)/(4·3) = 2/12 = 1/6
Todd ate 1/6 of the entire pan.
Arthur has x pennies. His father gave him 6 dimes, and his mother gave him 4 nickels. Which expression represents the number of coins arthur has now?.
The expression represents the number of coins Arthur is x + 80 cents.
The term expression in math refers a sentence with a minimum of two numbers or variables and at least one math operation.
Here we have given that Arthur has x pennies. His father gave him 6 dimes, and his mother gave him 4 nickels.
And we need to find expression represents the number of coins Arthur has now.
From the given question, here we have to convert the pennies, dimes and nickels into same unit before adding to get the expression for the number of coins Arthur will have in total.
AS we know that one penny = 1 cent, one dime = 10 cents, one nickel = 5 cents and
Therefore, x pennies = x cents
Then 6 dimes = 60cents
Then 4 nickels = 20 cents
Therefore, the Arthur's coins in total is written as,
=> (x + 60 + 40) cents
=> (x + 80) cents.
Therefore, the resulting expression is written as (x + 80) cents.
To know more about Expression here.
https://brainly.com/question/14083225
#SPJ4
How do you prove that a triangle is transitive congruent?
The triangle transitive congruent is proved by considering that if one triangle is congruent to second triangle and second triangle is congruent to third one, then the first triangle is congruent to third triangle.
Transitive Property of Congruence :The transitive property states that if one geometry is congruent with another, and the second is congruent with a third, then the first is also congruent with the third.
Statement : If triangle ABC is similar to triangle PQR and triangle PQR is similar to triangle EFG , then triangle ABC is similar to triangle EFG.
Given, ∆ABC ≅ ∆PQR and ∆PQR ≅ ∆EFG
RTP -> ∆ABC ≅ ∆EFG.
Proof : ∆ABC ≅ ∆PQR, SSA Congruence which implies, AB = PQ --(1)
PR = AC --(2)
and angle ABC = angle PQR --(3)
∆PQR ≅ ∆EFG, AAS Congruence which gives
Angle PQR = Angle EFG --(4)
PQ = EF --(5)
Angle PRQ = Angle EGF --(6)
from (3) and (4) we get,
angle ABC = Angle EFG --(7)
from (1) and (5) we get , AB = EF --(8)
angle BAC = angle FEG = 40° --(9)
Now, from (7) , (8), (9) we conclude that the triangle ABC is Congruent to triangle EFG by ASA Congrauance postulate i.e ∆ABC ≅ ∆EFG.
Hence proved.
To learn more about Transitive property in Congruence, refer:
https://brainly.com/question/29792714
#SPJ4
What are the two methods of division?
Depending on the level of difficulty, there are three different dividing methods. These include the bus stop approach, the chunking method, and the long division method. The chunking method is also known as division by repeated subtraction.
what is division?One of the four fundamental arithmetic operations, or the process by which two or more numbers are added together to create a new number, is division. Multiplication, addition, and subtraction make up the remaining operations.
The opposite of multiplication is division.
Depending on the level of difficulty, there are three different dividing methods. These include the bus stop approach, the chunking method, and the long division.
To know more about division visit:-
https://brainly.com/question/21416852
#SPJ4
Statistics question
Walmart claims that their checkout scanners correctly price 98.9% of the items sold. How many items would you expect to buy, on average, to find one that scans incorrectly? Round your answer up to the next integer
a) 2
b) 91
c) 99
d) 500
e) 989
Answer:
(b) 91
Step-by-step explanation:
The probability of an item scanning correctly is 98.9%, so the probability of an item scanning incorrectly is 1 - 98.9% = 1.1%.
The expected number of items to buy to find one that scans incorrectly is 1 / 1.1% = 91. This means that you would expect to buy 91 items on average to find one that scans incorrectly.
Rounding up to the next integer, the answer is 92. Therefore, the correct answer is (b) 91.
Which criterion if any could prove the triangles are congruent?
The criterion if any could prove the triangles are congruent are SSS, SAS, ASA, AAS, and RHS congruence properties.
Two triangles are congruent if all the three corresponding sides of two triangles are the same. There are a few more criteria also. Thus, congruent triangles are mirror images to each other. The mathematical symbol represents congruence is ≅.
In the triangles ΔABC, ΔEFG as shown below, we can identify corresponding angles and corresponding sides are equal.
Diagram attached at the end of solution.
ΔABC≅ΔEFG
Corresponding Angles: ∠A≅∠E,∠B≅∠F,∠C≅∠G
Corresponding sides: AB≅EF,BC≅FG,AC≅EG.
Corresponding vertices: A and E,B and F,C and G
Two triangles of the same size and shape are called congruent triangles. When we rotate, reflect, or translate a triangle, its position or appearance seems identical to the other, also called congruent.
Based on the experiments, there are mainly 5 conditions or rules to compare the two triangles to be congruent. They are SSS, SAS, ASA, AAS, and RHS congruence properties.
For more questions on congruence of triangles
https://brainly.com/question/19258025
#SPJ4
16. Write and solve an equation to find two consecutive odd integers such that their sum is twenty.
Answer:
9 and 11
Step-by-step explanation:
there is a difference of 2 between consecutive odd integers.
let n and n + 2 be the integers , then
n + n + 2 = 20
2n + 2 = 20 ( subtract 2 from both sides )
2n = 18 ( divide both sides by 2 )
n = 9
and n + 2 = 9 + 2 = 11
the two consecutive odd numbers are 9 and 11
How do you do the inverse of a matrix step by step?
A matrix's inverse can be calculated in a number of stages.
To find the inverse of a matrix, you can use the following steps:
Find the determinant of the matrix. The determinant is a scalar value that represents the size and orientation of the matrix. It is denoted as "det" or "|A|".Find the adjoint of the matrix. The adjoint is a matrix that is related to the inverse of the matrix. It is denoted as "adj" or "adj A".Subtract the determinant from the adjoint of the matrix. The result is the inverse of the matrix. It is denoted as "A^-1".Here is an example:
Find the inverse of the matrix A:
[1 2]
[3 4]
Find the determinant of the matrix: det(A) = 14 - 23 = -2
Find the adjoint of the matrix: adj(A) = [4 -2]
[ -3 1]
Divide the adjoint of the matrix by the determinant: A^-1 = adj(A)/det(A) = [-2 1] / -2 = [1 -1/2]
[ 3/2 -1/2]
Matrix A's inverse is A-1= [1 -1/2].
[3/2 -1/2]
To learn more about matrix, refer:-
https://brainly.com/question/28180105
#SPJ4
What is positive and negative slope?
Positive Slope: A slope in which two variables, i.e., variable at x-axis and variable at the y-axis, shows a positive relationship is known as positive slope. In simpler words, a positive slope is one in which the variable x increases with the increase in variable y and/or variable y increases with the increase in variable x.
Negative Slope: A slope in which two variables, i.e., variable at x-axis and variable at the y-axis, shows a negative relationship is known as negative slope. In other words, a negative slope is one in which the variable x increases with the decrease in variable y and/or variable y increases with the decrease in variable x.
WHAT IS A SLOPE?A number of absolute values that represent whether a line is steeper or flatter and the direction of the line on the graph are known as a slope or gradient. The slope of a line is fundamental concept in economics and mathematics. It is generally denoted by the letter 'm'. The slope can be calculated by dividing the 'vertical change' with the 'horizontal change' between two distinct points on a line.
TYPES OF SLOPEThere are two main types of slopes which are given below:
Positive Slope: A slope in which two variables, i.e., variable at x-axis and variable at the y-axis, shows a positive relationship is known as positive slope. In simpler words, a positive slope is one in which the variable x increases with the increase in variable y and/or variable y increases with the increase in variable x. Similarly, the variable x decreases with the decrease in variable y, and/or variable y decreases with the decrease in variable x. It means both the variables are complements to each other. A positive slope moves in the upward direction or is upward sloping.
In graphical terms, a positive slope is one in which the line on the graph rises when it moves from left to right. The concept of positive slope can be clearly understood with the help of the supply curve of a producer or firm in economics. The two variables of the curve are price at the y-axis and quantity of goods at the x-axis. Let us assume the firm is producing the goods for profit maximization. Therefore, when the prices of the goods increase, the quantity supplied by the firm of those goods will also increase, while when the prices decrease, the quantity supplied by the firm will decrease.
Negative Slope: A slope in which two variables, i.e., variable at x-axis and variable at the y-axis, shows a negative relationship is known as negative slope. In other words, a negative slope is one in which the variable x increases with the decrease in variable y and/or variable y increases with the decrease in variable x. In the same manner, the variable x decreases with the increase in variable y, and/or variable y decreases with the increase in variable x. This represents an inverse relationship between these two variables. A negative slope moves in the downward direction or is downward sloping.
Graphically, a negative slope is one in which the line on the graph falls when it moves from left to right. One of the best examples of the negative slope of the graph is the demand curve in economics. The two variables of the curve are price at the y-axis and quantity of goods at the x-axis. As we know, the consumers buy a large quantity of a good at a lower price than at a higher price. Therefore, the quantity demanded by the consumers of goods will decrease with an increase in the prices of those goods. On the other hand, when prices of the goods will decrease, the quantity demand will increase.
To learn more about slope:
https://brainly.com/question/3605446
#SPJ4
Solve pls brainliest
Answer:
The answers are in the picture I attached to this response.
Step-by-step explanation:
(1) The equation of a line, in slope-intercept form, is: [tex]y = mx + b[/tex], where m is the slope, and b is the y-intercept.
⭐ What is the slope (m) mean?
The slope is the steepness of the line.⭐ What is the y-intercept (b) mean?
The y-intercept is the y-value for when the x-value = 0To find the slope, we need to use the formula: [tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex], where [tex](x_1, y_1)[/tex] and [tex](y_1, y_2)[/tex] are coordinates you are given.
In this problem, you are given the coordinates (2,6) and (4,9). Let's substitute these coordinates into the slope formula.
[tex]m = \frac{9-6}{4-2}[/tex]
[tex]m = \frac{3}{2}[/tex]
Now, substitute the value of m into the equation of a line.
[tex]y = \frac{3}{2}x + b[/tex]
All we have to do now is substitute the value of b. We are already given that the line intersects the y-axis at (0,3), which means that (0,3) is the y-intercept.
[tex]y = \frac{3}{2}x + 3[/tex]
⭐ How do we graph this equation?
Start at the y-axis with the y-intercept (3). From there, use your slope to plot new points. The numerator of the slope is known as the "rise" (how much you shift up or down), and the denominator of the slope is known as the "run" (how much you shift left or right). You will know if you have to go UP or DOWN, or LEFT or RIGHT if the number is negative or positive.(3) Start by taking the square root of 44 on a calculator.
You should get an irrational number (a number that's digits never terminate or repeat).
Whenever you have questions like these, you are expected to round the number to the nearest tenth.
[tex]\sqrt{44} = 6.6332495807107996982298654733414\\\\\sqrt{44} = 6.6[/tex]
Choose a place on the number line to start your positive integers (1,2,3 . . .) and plot the point 6.6.
6.6 should be a bit after 6.5, which is in between 6 and 7.
What type of sequence is 72 36 18?
Since there is a common ratio between each term so this is a geometric sequence.
What is geometric sequence?A unique kind of sequence is a geometric sequence. Every term in the series (aside from the first term) is multiplied by a fixed amount to determine the following term. In other words, we multiply the current phrase in the geometric sequence by a constant term (called the common ratio), and then divide the current term in the geometric sequence by the same common ratio to discover the previous term in the geometric sequence.
What is the general formula to find geometric sequence?Every term in a geometric series is obtained by multiplying the term before it by the same number. [tex]a_{n}=a_{1} r^{n-1}[/tex] is the general phrase for it. The common ratio is denoted by the number r. Any term in the sequence can be used to find it by dividing it by the word before it.
In 72 36 and 18 if we multiply the previous term by [tex]\frac{1}{2}[/tex] we will get the next term. So r=[tex]\frac{1}{2}[/tex] and hence there is a common ratio so the given sequence is geometric sequence.
To learn more about geometric sequence visit:
https://brainly.com/question/28188245
#SPJ4
Which set of numbers are closed under addition?
The set of integers is closed under the operation of addition because the sum of any two integers is always another integer and is therefore in the set of integers.
What are integers ?
An integer is a whole number (not a fractional number) that can be positive, negative, or zero. Examples of integers are: -5, 1, 5, 8, 97, and 3,043. Examples of numbers that are not integers are: -1.43, 1 3/4, 3.14, .
According to the Property of Closure, A set has the closure property under a particular operation if the result of the operation is always an element in the set. If a set has the closure property under a particular operation, then we say that the set is “closed under the operation.”
Hence , the set of integers is closed under the operation of addition because the sum of any two integers is always another integer and is therefore in the set of integers.
Learn more about Integers at :
https://brainly.com/question/1633188
#SPJ4
What is the additional information needed to enable us to apply the SAS postulate in the given triangle?
The value of the side is needed to verify the SAS rule.
In triangle theorem SAS states that if two sides and the included angle in one triangle are congruent to two sides and the included angle in another triangle then the two triangles are congruent.
Here we have to find the additional information needed to enable us to apply the SAS postulate in the given triangle.
Let us consider the following triangle, through the given triangle, we must know that in order to the SAS Postulate, here you must need two sides and the included angle in both triangles.
Therefore, here you need the side on the other side of the angle.
So, while we looking into the given triangle, we know that the △ABC, has the side BC and in △LKM that is KM.
Therefore, if it is congruent, when
=>BC ≅KM
To know more about Congruent here
https://brainly.com/question/29767742
#SPJ4
What happens to a shape when you perform a rigid transformation?
The size and shape of the object or pre-image are not changed by a rigid transformation, sometimes referred to as isometry, when the final picture is returned.
What are the characteristics of a rigid motion transformations?While the image's size and shape are unaffected by rigid body motion, its location and orientation are. The three fundamental movements of a rigid body are translation, reflection, and rotation. Prior to movement, archetypes depict points or forms.
The size and shape of the object or pre-image are not changed by a rigid transformation, sometimes referred to as isometry, when the final picture is returned. Rigid transformations are any of the three recognized transformations, which include rotation, reflection, and translation.
Triangle = 1/2 X b X h
b= 10
h=5
A = 1/2 X 10X 5
A = 25 unit sq.
To know more about rigid motion transformations visit:
https://brainly.com/question/29175049
#SPJ4
Which graph represents this equation? y=3/2x^2-6x A. The graph shows an upward parabola with vertex (minus 2, minus 6) and passes through (minus 5, 7), (minus 4, 0), (0, 0), and (1, 7) B. The graph shows an upward parabola with vertex (2, minus 6) and passes through (minus 1, 7), (0, 0), (4, 0), and (5, 7) C. The graph shows an upward parabola with vertex (3, minus 4.5) and passes through (minus 1, 3.5), (0, 0), (6, 0), and (7, 3.5) D. The graph shows an upward parabola with vertex (minus 3, minus 4.5) and passes through (minus 7, 3.5), (minus 6, 0), (0, 0), and (1, 3.5)
The graph that represents the equation y = 3/2x² - 6x is
B. The graph shows an upward parabola with vertex (2, minus 6) and passes through (minus 1, 7), (0, 0), (4, 0), and (5, 7)
What is graph of quadratic equation?The shape of a quadratic function's graph. is a U-shaped curve,
The graph's vertex, which is an extreme point, is one of its key characteristics. The vertex, or lowest point on the graph or minimal value of the quadratic function, is where the parabola will open up.
The vertex is the highest point on the graph or the maximum value if the parabola opens downward.
In the problem the graph opens up and points are plotted and attached, the graph shows that option is the correct choice
Learn more about quadratic equation:
https://brainly.com/question/1214333
#SPJ1
solve factored. was she correct??
Answer:
No, she is wrong
Step-by-step explanation:
(4x - 6)^2 can be write as
(4x -6) ( 4x-6)
16x^2 - 24x -24x + 36
16x^2 -48x + 36
So, she is wrong!
Hey there!
(4x - 6)^2
= (4x - 6)(4x - 6)
FACTOR/DISTRIBUTE
= 4x(4x) + 4x(-6) - 6(4x) - 6(-6)
SIMPLIFY
= 16x^2 - 24x - 24x - 36
COMBINE the LIKE TERMS
= 16x^2 - 48x - 36
Therefore, the answer should be:
16x^2 - 48x - 36
Therefore, your answer should be: “No, because the equation should’ve been 16x^2 - 48x - 36. She didn’t factor the equation correctly”
Good luck with your assignment & enjoy your day!
~Amphitrite1040:)
I Need Help again Pls fast
Answer:
The scale factor is 60
Step-by-step explanation:
The drawing is measured in inches and the billboard is measured in feet. First, convert 15 feet to 180 inches. Then use the ratio [tex]\frac{180}{3}[/tex] to find that the scale factor is 60. This means the length of the billboard will be 600 inches or 50 feet.
Solve 13t+ 6| = 9
A. n = -5
B. n = 1
C. n = -1 or 1
D. n = -5 or 1
Answer: t 13/3 ≈0.230769231
Step-by-step explanation:
Who invented 0 in India?
It is said that concept of using 0 numerically came from India. It is said that Aryabhatta used zero as a placeholder number in the 5th century and thus said to invent 0. There are various theories around the invention of 0.
Therefore, the answer is Aryabhatta.
Zero as a symbol and as absence of quantity helps us in calculations. As a placeholder various civilizations have utilized zero, but they didn't develop the idea of zero as a number. In the 7th century, Brahmagupta have noted laws on use of zero numerically.
Zero as a number represents an empty quantity. It is denoted by the arithmetic symbol 0.
To know more on zero
https://brainly.com/question/30089945
#SPJ4
!!PLS HELP ASAP!!30 POINTS!!
Divide using synthetic division
[tex]x^4-3x^3-7x+1[/tex]÷[tex]x+2[/tex]
The quotient and remainder are x³ -5x² + 10x - 17 and 55.
What is Synthetic division?
When the divisor is a linear factor, synthetic division is a technique used to carry out the division operation on polynomials.
Here, (x+2) is a linear factor which indicates that synthetic division can be applied.
So, we will divide the x^4 - 3x^3 - 7x + 1 by x+2.
(refer the attached solution)
Learn more about Polynomials from the given link:
https://brainly.com/question/29638766
#SPJ1
What are the next two terms of the following sequences?
With process
Answer:
[tex]\frac{5}{36} , \frac{6}{49}[/tex]
Step-by-step explanation:
The numerator of these terms is increasing by 1
The denominator is being squared... Look at this
The denominator of the first term is 2² which equals 4
the next denominator is 3² = 9
the next 4² = 16
the next 5² = 25
so, what what's next?
6² = 36 and 7² = 49
Hope I helped! :)
Answer:
The next two terms of the following sequence is 5/36 and 6/49.
Step-by-step explanation:
The pattern in this sequence is that the numerators of the sequence are all positive integers that increase by 1, so I added 1 to each preceding numerator. The denominators of the sequence are consecutive perfect squares (e.g., 4, 9, 16, 25, 36, etc.), so I made each following denominator the next perfect square.
what is the slope of (-18,18) and (-14,3)
Answer:
-15/4
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
=(3-18)/(-14- -18)
=-15/4
Answer:
Slope = [tex] \sf \frac{-15}{4} [/tex]
Step-by-step explanation:
Now we have to,
→ find the required slope.
Formula we use,
→ Slope(m) = (y2 - y1)/(x2 - x1)
Then the slope will be,
→ m = (y2 - y1)/(x2 - x1)
→ m = (3 - 18)/(-14 -(-18))
→ m = -15/(-14 + 18)
→ [ m = -15/4 ]
Hence, the slope is -15/4.
What is the sum of 3 consecutive odd numbers whose sum of squares?
The sum of the squares of three consecutive odd number 11, 13, 15 is 515.
What are consecutive numbers ?
Numbers that follow each other continuously in the order from smallest to largest are called consecutive numbers. For example: 1, 2, 3, 4, 5, 6, and so on are consecutive numbers.
Let the second number = x.
so the first number = x-2
the third number = x + 2
according to the question, the sum of the squares of the numbers = 515
so the formula is:
x² + (x-2)² + (x + 2)² = 515
(a-b)² = a² + b² - 2ab
and,
(a+b)² = a² + b² + 2ab
So, let’s apply these to our equation:
x² + x² + 2² -2*2x + x² + 2² + 2*2x = 515
There are three x² and 2*2 = 4 and 2*2x = 4x. Let’s apply all that to the equation,
3x² + 4 - 4x + 4 + 4x = 515
there is a -4x and a +4x, -4x + 4x = 0, so let’s remove that.
3x² + 4 + 4 = 515
3x² + 8 = 515
3x² = 515 - 8
3x² = 507
x² = 507/3
x² = 169
x = √169
√169 (square root(169)) = 13
x = 13
if x = 13, then the first number = 13–2 = 11 and the third number = 13 + 2 = 15
Hence , the sum of the squares of three consecutive odd number 11, 13, 15 is 515.
11*11 + 13*13 + 15*15 = 515
Learn more about consecutive numbers at:
brainly.com/question/17296996
#SPJ4
An air traffic controller is tracking two planes. To start, Plane A was at an altitude of 700 meters, and Plane B was at an altitude of 424 meters. Plane A is gaining altitude at 16 meters per second, and Plane B is gaining altitude at 22 meters per second. Let x be the number of seconds that have passed.
(A) For each plane, write an expression for the altitude of the plane after x seconds.
(B) Write an equation to show when the two planes would be at the same altitude.
(A) The expression for each plane are as follows;
Plane A; 700 + 16xPlane B; 424 + 22xB). The equation to show when the two planes would be at the same altitude is; 700 + 16x = 424 + 22x.
Which equation shows when the two planes would be at the same altitude?It follows from the task content that the initial altitudes of plane A and B are 700 and 424 respectively.
Hence, since plane A gains altitude at 16 meters per second; The expression for the altitude after x seconds is;
700 + 16xAlso, since plane B gains altitude at 22 meters per second; The expression for the altitude after x seconds is;
424 + 22xTherefore, when the two planes are at the same altitude; the equation which is true is;
700 + 16x = 424 + 22x.Read more on linear expressions and equations;
https://brainly.com/question/29270827
#SPJ1
For the graphed function f(x) = -(3)x1+3, calculate the average rate of change from x = 1 to x = 3.
-4
-2
2
4
Answer:
The average rate of change is -4
Step-by-step explanation:
The given function is f(x) = -(3)x1+3
We want to find the average rate of exchange of this function from x=1 to x=3.
This is the slope of the secant line joining the points (1,f(1)) and (3,f(3)).
From the graph, f(1)=2 and f(3)= -6
The average rate of exchange
=f(3)-f(1)/3-1
=-6-2/3-1
=-8/2
=-4