A survey is conducted to find out the average number of hours

Answer:

35%

Step-by-step explanation:

Answer:

37.34 or 37 if rounded

Step-by-step explanation:

Write the equation vertically to make it easier.  8 minus 4 equals 4, 5 minus 2 equals 3, 9 minus 2 equals 7, and 6 minus 3 equals 3.

Answer:

x = 63/2

Step-by-step explanation:

x /3  =  21 /2

3 . x/3 = 3 . 21/2

x  =  63 /2

Answer:

3/5 or 60%

Step-by-step explanation:

It looks like you filled in A correctly so I will focus on B

There are 24 cars in the pool and 16 vans totally 40 total vehicles

If were to pick a random vehicle from the pool the odds of it being a car is equal to

number of cars in the pool/number of vehicles in the pool

This means the odds of you randomly picking a car is 24/40 which simplifes

to 3/5

Answer:

The answer is 856.17.

Step-by-step explanation:

If you made the fraction into a decimal, you would get 856.166666666. If you round it to the nearest hundredth, you would get 856.17.

Answer:

48:18:24 or ∠A = 48, ∠B = 18, ∠C = 24

Step-by-step explanation:

Since The angles of a triangle add up to 90, then 8 + 3 + 4 should equal to 90 if multiplied by x.

Example:

x(8 + 3 + 4) = 90

x(15) = 90

15/15x = 90/15

x = 6

If x is equal to 6, then 6 times 8, 6 times 3, and 6 times 4, should equal their respective angles and add up to 90.

Example:

8 * 6 = 48

3 * 6 = 18

4 * 6 = 24

48 + 24 + 18 = 90

This means the angles are

48:18:24 or ∠A = 48, ∠B = 18, ∠C = 24

Answer: b = 2

Step-by-step explanation:

[tex]b = \frac{2\sqrt{2}}{\sqrt{2} }\\b = 2[/tex]

Since this is a 45°-45°-90° triangle, the side opposite the 90° angle is √2× the other two angles. The other two angles are congruent since their opposite angles are both 45°.

Hope this helped! :p

Step-by-step explanation:

2[tex]\sqrt{2}[/tex] is the hypotenuse

The other 2 sides are equal to b since this is a 45-45-90 triangle meaning that it's isosceles

[tex]2b^{2}[/tex] = ([tex]2\sqrt{2}[/tex][tex])^{2}[/tex]

[tex]2b^{2}[/tex] = ([tex]\sqrt{8})^{2}[/tex]

[tex]2b^{2}[/tex] = 8

[tex]b^{2}[/tex] = 4

b= 2

Hope this helps!!!

Sorry for taking so long

Answer:

[tex]\displaystyle f(x)=-\frac{1}{16}(4^x)[/tex]

Step-by-step explanation:

We have the function:

[tex]f(x)=-4^{x-2}[/tex]

And we want to convert this to the exponential form:

[tex]f(x)=ab^x[/tex]

First, using the power of a product property, we can rewrite our function as:

[tex]f(x)=-(4^x\cdot4^{-2})[/tex]

By evaluating the second term, we acquire:

[tex]\displaystyle f(x)=-\big(4^x\cdot \frac{1}{4}^2}\big)=-\big(4^x\cdot \frac{1}{16}\big)[/tex]

So, by rearranging, we acquire:

[tex]\displaystyle f(x)=-\frac{1}{16}(4^x)[/tex]

As desired.

Answer:

[tex] \frac{y - ( - 4)}{x - 0} = \frac{3 - ( - 4)}{2 - 0} \\ \frac{y + 4}{x} = \frac{3 + 4}{2} \\ \frac{y + 4}{x} = \frac{7}{2} \\ 2(y + 4) = 7x \\ 7x = 2y + 8 \\ 7x - 2y = 8 \\ 2y = 7x - 8 \\ \boxed{y = \frac{7}{2}x - 4}[/tex]

Answer:

1. 29

2. 30

3. 4

4. 14

Step-by-step explanation:

5*7=35 35-6=29

4*7=28 28+2=30

8/2=4

7*2=14

Answer:

6 - 4i

Step-by-step explanation:

-4 + i = 10 - 5i

+4       +4      

i = 14 + 5i

-5i      -5i      

-4i = 14

i = -3.5

Answer:

6-4i

Step-by-step explanation:

Answer:

180

Step-by-step explanation:

Answer: 20 questions

Step-by-step explanation:

Answer:

15/x*100=75

75/100*15=x

x=20

total no. of questions

Answer: 1387.5 miles

Step-by-step explanation:

hope this helps :)

Step-by-step explanation:

it's the 2nd one

...................

Answer:

I believe it is 2.44560420327

As a fraction it is 2/3

Answer:

The simplified expression of  [tex]\frac{7^{4}.7^{6}}{7^{8}}[/tex] is 7² ⇒ C

Step-by-step explanation:

Let us revise some rules of exponent

Let us solve the question

∵ The expression is [tex]\frac{7^{4}.7^{6}}{7^{8}}[/tex]

→ By using the first rule above add the exponents of 7

∴  [tex]\frac{7^{4}.7^{6}}{7^{8}}[/tex] = [tex]\frac{7^{4+6}}{7^{8}}[/tex]

∴  [tex]\frac{7^{4}.7^{6}}{7^{8}}[/tex] = [tex]\frac{7^{10}}{7^{8}}[/tex]

→ By using the second rule above, subtract the exponents of 7

∵  [tex]\frac{7^{4}.7^{6}}{7^{8}}[/tex] = [tex]7^{10-8}[/tex]

∴  [tex]\frac{7^{4}.7^{6}}{7^{8}}[/tex] = 7²

∴ The simplified expression of  [tex]\frac{7^{4}.7^{6}}{7^{8}}[/tex] is 7²

the answer is 7 power 2

Answer:

-2x + 3 – (5 – 6x) = 4x - 2

Step-by-step explanation:

The given expression is :

-2x + 3 – (5 – 6x)

We need to simplify the above expression. First opening the brackets.

-2x + 3 – (5 – 6x) = -2x + 3 – 5 + 6x

Taking like terms together,

= -2x+6x + 3 -5

= 4x - 2

So, the simplified expression is 4x - 2.

Answer:

2/9, 2/8, 2/3

Step-by-step explanation:

2/9= 0.22 (to 2 decimal point)

2/8= 0.25

2/3 = 0.67

Answer:

D

Step-by-step explanation:

Answer: I don't really understand, but something in my brain says D haha

Answer:

Option D

Step-by-step explanation:

Formula for the surface area of rectangular prism = 2(lb + bh + hl)

Here, l = Length of the prism

b = Width  

h = Height

If l = 25 cm, b = 12 cm and h = 20 cm

Surface area of the rectangular prism = 2(25×12 + 12×20 + 20×25) cm²

Therefore, Option D will be the correct option.

Answer:

3.2

Step-by-step explanation:

12 4/5 times 1/4= 3 1/5 or 3.2

Answer:37.5

Step-by-step explanation:

5*750/100 =37.5

Answer: 829393

Bn

Step-by-step explanation:

Answer:

−5x + 4y = 8

−x + 5y = 10

Step-by-step explanation:

Answer:

4 1/3 cups

Step-by-step explanation:

All you have to do for this one is subtract 5 2/3 from 10, which is 4 1/3. Your equation could be 10-5 2/3=x.

Answer:

Step-by-step explanation:

Well what are the sizes of the bags, and what are the prices of the bags

Answer:

A is the correct answer

Step-by-step explanation:

We need to figure out the base and the height. We can do that using pythagorean's theorem.

The others either misused the pythagorean theorem or got the 1/2*base*height formula wrong, so A is the answer.