Mathematics High School

What does x equal in 2x-5

Answers

Answer 1

Answer:[tex]2^{x}[/tex] = 16

Step-by-step explanation:

Related Questions

3. What is the decimal equivalent of each
rational number?
a. 9/11
b. 4/5
c. -17/5
d. 5/9

Answers

Answer:

a. 0.81818182

b. 0.8

c. -3.4

d. 0.55555556

Step-by-step explanation:

When simplified, StartFraction tangent (40 degrees) minus tangent (10 degrees) Over 1 + (tangent (40 degrees) ) (tangent 10 degrees) ) EndFraction is equivalent to which expression?

Answers

Answer:

C. tan(30°)

Step-by-step explanation:

edge yuh yuhhhhh

The equivalent fraction is [tex]\frac{sin 40\textdegree. {cos10\textdegree} - {sin 10\textdegree}{cos40\textdegree}}{{cos 40\textdegree. {cos10\textdegree} + {sin 10\textdegree}{sin40\textdegree}}}[/tex].

The given expression is tan 40°-tan 10°/1+tan 40°.tan 10°.

How do simplify the trigonometric expression?

When simplifying trigonometric expressions, one approach is to change everything into sine or cosine.

Now, [tex]\frac{\frac{sin40\textdegree}{cos40\textdegree} -\frac{sin10\textdegree}{cos10\textdegree}}{1+\frac{sin40\textdegree}{cos40\textdegree} .\frac{sin10\textdegree}{cos10\textdegree} }[/tex]

=[tex]\frac{sin 40\textdegree. {cos10\textdegree} - {sin 10\textdegree}{cos40\textdegree}}{{cos 40\textdegree. {cos10\textdegree} + {sin 10\textdegree}{sin40\textdegree}}}[/tex]

Therefore, the equivalent fraction is [tex]\frac{sin 40\textdegree. {cos10\textdegree} - {sin 10\textdegree}{cos40\textdegree}}{{cos 40\textdegree. {cos10\textdegree} + {sin 10\textdegree}{sin40\textdegree}}}[/tex].

To learn more about trigonometric expression visit:

https://brainly.com/question/14746686.

#SPJ2

Audrina goes to the mall with $50. She buys 3 shirts for $8.50 each, and 2 pairs of pants for $11 each. How much money does Audrina have left?

Answers

Answer:

2.5

Step-by-step explanation:

she has buys 3 shirts for 8.50 which = 25.5

then she buys 2 pair of pants for $22 because 2 x 11=22

so then 22 + 25.5 = 47.50

50.00- 47.50= 2.50

Estimate sixty-two percent of one hundred twenty-four.

Answers

approximately 77

reasoning — 62% of 100 = 62
and ————— 10% of 24 = 2.4 * 6 = 14.4
———————— 62 + 14.4 = 76.4 ,
and i rounded up since i didn’t do the full 62% of 24 .
giving the estimated answer of about 77

Are there any five-digit numbers which are reversed when multiplied by 8?

Answers

probably lol sorry

...

At a department store, the price of a freezer is marked up 15% to $450.50.

What was the price of the freezer BEFORE the mark up?

Answers

Answer:

The price was $391.30.

Step-by-step explanation:

We can answer this using algebra:-

Let the original price be $x, then:

x + 15% of x = 450

x + 0.15x = 450

1.15x = 450

x = 450/1.15

x = 391.304

You bike 14 ଵ ସmiles from your house to a state park. You travel ଵ ଷof that distance in the woods. You bike along the bank of a stream for the last ଵ ଶof the woods. On how many miles of your trip do you bike along the bank of the stream?

Answers

17miles is the answer trust me bro

Answer:

17 miles

Step-by-step explanation:

What are the two radicals that surround /125

Answers

Answer:

[tex]+5\sqrt{5} and -5\sqrt{5}[/tex]

Step-by-step explanation:

The radicals are [tex]+5\sqrt{5} and -5\sqrt{5}[/tex]

as [tex]5\sqrt{5}* 5\sqrt{5} = 125[/tex]

also [tex]-5\sqrt{5} *-5\sqrt{5} = 125[/tex]

Solve the right triangle. Round decimal answers to the nearest tenth

Answers

Answer:

AB = 15

m∠A = 53.1°

m∠B = 36.9°

Step-by-step explanation:

From the picture attached,

By Applying Pythagoras theorem,

AB² = AC² + BC²

AB² = 9² + (12)²

AB² = 81 + 144

AB = √225

AB = 15

tan(B) = [tex]\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]

= [tex]\frac{12}{9}[/tex]

= 1.3333

B = [tex]\text{tan}^{-1}(1.3333)[/tex]

= 53.13

≈ 53.1°

Since, m∠A + m∠B + m∠C = 180°

m∠A + 53.1° + 90° = 180°

m∠A = 180°- 143.1°

= 36.9°

Answer:

AB = 15

m∠A = 53.1°

m∠B = 36.9°

Find the sum of the first 8 terms of the following series, to the nearest integer.
36, 30, 25, ...

Answers

Answer:

The sum of the first 8 terms will be:

[tex]\frac{1288991}{7776}[/tex]

Step-by-step explanation:

Given the sequence

[tex]36, 30, 25, ...[/tex]

A geometric sequence has a constant ratio and is defined by

[tex]a_n=a_0\cdot r^{n-1}[/tex]

computing the common ratio

[tex]\frac{30}{36}=\frac{5}{6},\:\quad \frac{25}{30}=\frac{5}{6}[/tex]

[tex]r=\frac{5}{6}[/tex]

As the first element is

[tex]a_1=36[/tex]

so the nth term will be:

[tex]a_n=a_0\cdot r^{n-1}[/tex]

[tex]a_n=36\left(\frac{5}{6}\right)^{n-1}[/tex]

Geometric sequence sum formula

[tex]a_1\frac{1-r^n}{1-r}[/tex]

Plugin the values to determine the sum of the first 8 terms

[tex]n=8,\:\spacea_1=36,\:\spacer=\frac{5}{6}[/tex]

[tex]=36\cdot \frac{1-\left(\frac{5}{6}\right)^8}{1-\frac{5}{6}}[/tex]

[tex]=\frac{\left(1-\left(\frac{5}{6}\right)^8\right)\cdot \:36}{1-\frac{5}{6}}[/tex]

[tex]=\frac{36\left(-\left(\frac{5}{6}\right)^8+1\right)}{\frac{1}{6}}[/tex]

[tex]=\frac{36\left(-\frac{390625}{1679616}+1\right)}{\frac{1}{6}}[/tex]

[tex]=\frac{\left(1-\frac{390625}{1679616}\right)\cdot \:36\cdot \:6}{1}[/tex]

[tex]=\frac{216\left(-\frac{390625}{1679616}+1\right)}{1}[/tex]

[tex]=\frac{216\cdot \frac{1288991}{1679616}}{1}[/tex]

[tex]=216\cdot \frac{1288991}{1679616}[/tex]

[tex]=\frac{1288991\cdot \:216}{1679616}[/tex]

[tex]=\frac{278422056}{1679616}[/tex]

[tex]=\frac{1288991}{7776}[/tex]

Therefore, the sum of the first 8 terms will be:

[tex]\frac{1288991}{7776}[/tex]

how many solutions does 6 -3x = 12 - 6x have?
A. two solutions.
B. no solutions.
C. one solution.
D. infinitely many solutions.

Answers

Answer:

Step-by-step explanation:

6-3x=12-6x

Only one solution of x=2

An advertisement reads “All Books 28 Percent Off.” A best-selling novel is originally priced at $18.99. About how much money will Gio save if he buys the novel on sale?

Answers

Answer:

6dollars

Step-by-step explanation:

Answer:

the answer is B 6 dollars

Step-by-step explanation:

estimate each quotient by rounding the dividend and the divisor to the largest place value
1. 2,756 divided by 532.
2. 22,528 divided by 98
3. 7,790 divided by 210
4. 17,658 divided by 360
5. 916 divided by 320

Answers

Answer:

230

Step-by-step explanation:

1)5.2 estimated is 5

2)229.9 estimated is 230

3)37.1 estimated is 3

4)0.0 estimated is 0

5)2.9 estimated is 3

There is a snowstorm in a certain town. In 1/2 hour, there was 7/8 inches of snow. It continues at the same rate for a total of 2 hours. Which statement is true about the amount of snow in the 2-hour period

Answers

Answer:

Since I don't know the statements, I'm gonna guess that if there is 7/8 snow in 1/2 hour then in 2 hours there is 3.5 inches of snow or 28/8 inches of snow in 2 hours.

Step-by-step explanation:

please help I'm actually crying! Find A and B if the graph of Ax + By = 7 passes through (2,1) and is parallel to the graph of 2x - 7y = 3.

Answers

i have less sympathy for ur crying when you copy and paste this question and ask it again three times. why dont you just ask it once? everyone answers anyway

marcys breakfast table has a square table top with an area of 36 square feet. what is the diagonal length of the table top

Answers

Answer:

√36 = 6

a^2 + b^2 = c^2

6^2 + 6^2 = c^2

36 + 36 = c^2

72 = c^2

√72 = c

2 36

2 18

2 9

3 3

6√2 = c

6√2 = (estimate rounded up, 8.49)

This question is incomplete.

Complete Question

The area A (in square feet) of the rectangular shed is given by 6x³+7x²+11x+21.And one side of the rectangular is 2x+3. Use polynomial long division to find an expression for the length (in feet) of the shed.

Answer:

3x² - x +7

Step-by-step explanation:

Using the long division method:

We have :

Divisor : 6x³+7x²+11x+21

Dividend : 2x+3

Quotient : the length (in feet) of the shed = ???

Hence, we solve below

6x³+7x²+11x+21 ÷ 2x + 3

3x² -x + 7

______________________

2x+3 l 6x³+7x²+11x+21

6x³+9x²

__________

-2x²+11x

-2x²-3x

__________

14x+21

_______

Therefore, an expression for the length (in feet) of the shed is 3x² - x +7

How do you write 462 in scientific notation?
x 10

Answers

Answer:

could you explain more?

Step-by-step explanation:

4.62*10^2 is how u WRite

Point (x, y) lies on the perpendicular bisector of . What is the value of x?
Record your answer and fill in the bubbles on your answer document.

Answer: 63 children and 88 adults swam at the public pool that day.

Step-by-step explanation:

Let x = Number of children

y= Number of adults

As per given , we have

x+y=151 (i)

1.50x+2y=270.50 (ii)

Multiply 2 on both sides of (i)

2x+2y = 302 (iii)

Eliminate (ii) from (iii)

0.5x=31.5

⇒ x = 63 [Divide both sides by 0.5]

Put value of x in (i) , we get

63+y= 151

⇒ y= 151-63 =88

Hence, 63 children and 88 adults swam at the public pool that day.

HELP ASAP I HAVE TO GET IT DONE

Solve for x in the diagram below

Answers

Answer:

x = 35

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS Equality Properties

Geometry

Definition of a Line: A line is 180°

Step-by-step explanation:

Step 1: Set up equation

40° + (2x + 30)° + 40° = 180°

Step 2: Solve for x

Combine like terms: 2x + 110 = 180Subtract 110 on both sides: 2x = 70Divide 2 on both sides: x = 35

Convert the following:
(a) 300 cm into metre

Answers

Answer:

Step-by-step explanation:

1 meter equals 100 cmWe know that [tex]1meter=100centimeters[/tex] Now how many (100 cm)'s are in (300 cm)'s? There are 3 right?So if every 100 cm is also a meter and there are 3 of these (100cm)s then they are just the same as 3 meters[tex]100cm=1m\\300cm=(x)m[/tex] cross multiply[tex]100cm(x)m=300cm1m[/tex] divide both sides by 100cm[tex](x)m=3m[/tex]

Answer:

Convert the following:

(a) 300 cm into metre

3 metres

find the slope of the line

Answers

Answer:

[tex]\frac{2}{3}[/tex]

Step-by-step explanation:

The line goes up 2 units and right 3 units.

Answer:

the slope is 6/7

Step-by-step explanation:

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