please help! i fell asleep and only have until 2:45!! i have other questions that i couldn’t get a pic of.

27.2 is 68% of what number?

what number is 162.2% of 55?

12 is what percent of 20?

15 is 25% of what number?

Find 17% of 655.

Answer:

9

Step-by-step explanation:

Answer:

1) C = 3

2) B = 5

3) C = 8

Step-by-step explanation:

Question 1)

We have:

[tex](2x+3)(4x-1)[/tex]

Distribute:

[tex]=(2x+3)(4x)+(2x+3)(-1)[/tex]

Distribute:

[tex]=8x^2+12x-2x-3[/tex]

Combine like terms:

[tex]=8x^2+10x-(3)[/tex]

Therefore, C = 3.

Question 2)

We have:

[tex](x+2) (2x^2+x-1)[/tex]

Distribute:

[tex]\displaystyle =(x+2)(2x^2)+(x+2)(x)+(x+2)( - 1)[/tex]

Distribute:

[tex]=(2x^3+4x^2)+(x^2+2x)+(-x -2)[/tex]

Combine like terms:

[tex]=2x^3+(5)x^2+x-2[/tex]

Therefore, B = 5.

Question 3)

We have:

[tex](x+2)(x^2-3x-2)[/tex]

Distribute:

[tex]=(x+2)(x^2)+(x+2)(-3x)+(x+2)(-2)[/tex]

Distribute:

[tex]=(x^3+2x^2)+(-3x^2-6x)+(-2x-4)[/tex]

Combine like terms:

[tex]=x^3-x^2-(8)x-4[/tex]

So, C = 8.

Answer:

8.v = r 2 πh 3

Step-by-step explanation:

Answer:

There are infinite solutions because there is always another number between any two numbers.​

Step-by-step explanation:

Answer:

The answer is C.) $4,000

Answer:

it will be A

Step-by-step explanation:

I am sure search ok thank u

Answer:

-3 power

Step-by-step explanation:

the amount of 0 is the power

Answer:

4.75 years are required to triple the population

Step-by-step explanation:

As we know

[tex]\frac{dP}{dt} = P\\[/tex]

Integrating both the side with respect to t we get

[tex]ln P = kt + c_1\\P = e^{kt + c_1}\\P = Ce^{kt}[/tex]

At t = 0, P = P0

[tex]2 P_0 = P_0 * e ^{3k}\\2 = e ^{3k}\\ln 2 = 3k\\k = 0.231\\[/tex]

substituting K value in main equation, we get -

[tex]P = P_0 * e^{0.231 * t}\\3P_0 = P_0 * e^{0.231 * t}\\3 = e^{0.231 * t}\\ln 3 = 0.231 * t\\t = 4.75[/tex]

4.75 years are required to triple the population

9514 1404 393

Answer:

  f⁻¹(x) = log(x)/log(16)

  g⁻¹(x) = (2^x -1)/3

Step-by-step explanation:

In each case, you want to solve ...

  x = f(y)

__

a. x = 4^(2y)

  log(x) = 2y·log(4) . . . . . . . . take logs

  y = log(x)/(2·log(4)) . . . . . . .divide by the coefficient of y

  f⁻¹(x) = log(x)/log(16) . . . . simplify (4^2 = 16)

__

b. x = g(y)

  x = log(3y +1)/log(2) . . . . use the change of base relation

  x·log(2) = log(3y +1) . . . . multiply by log(2)

  2^x = 3y +1 . . . . . . . . . . . take antilogs

  2^x -1 = 3y . . . . . . . . . . . subtract 1

  y = (2^x -1)/3 . . . . . . . . . . divide by the coefficient of y

  g⁻¹(x) = (2^x -1)/3 . . . . . . . . note that "-1" is not part of the exponent of 2

Answer:

16

Step-by-step explanation:

Hope this helps sorry if I'm wrong

Answer:

291.875

Step-by-step explanation:

16 x 291.875= 4670

Answer:

Answer =  51

Step-by-step explanation:

PEMAS = (parenthesis, exponents, multiplication, division, addition, subtraction) follow steps in order

Answer:

51

Step-by-step explanation:

53-102+20(8-3)

53-102+20 x 5

53-102+100

=51

Step-by-step explanation:

if you have a quarter tank then what is empty is 15 gallons because 20*3/4=15

you now need to fill up the 15 gallons, if each gallon is 21/2 dollars then 15*21/2 should give us a price. 21/2=10.5

15 gallons*10.5 dollars=$157.5 for the final price

Answer:

3 hours

Step-by-step explanation:

The rate of lawn treatment is 75 lawns per 25 hours, which can be simplified as 3 lawns per hour.

If he treats 3 lawns every hour, it will take him 3 hours to treat 9 lawns.

Answer:

Step-by-step explanation:

You do this by figuring out the amounts of pure fruit juice in all.

Explanation:

Mixture:

17 gal 30% contains:  

17

⋅

30

100

=

5.10

gal pure juice

From Brand B:

8 gal 48% contains:  

8

⋅

48

100

=

3.84

gal pure juice

So  

5.10

−

3.84

=

1.26

gal came from 9 gal of brand A

So the percentage of A is:

1.26

9

⋅

100

=

14

%

pure juice.

Mark brainliest if this answer is correct please

Answer:

if they both cost $26 then $52 if they both coast $18 then $36

Step-by-step explanation:

Answer:

(total price - price of 1 new book)÷number of used books

($26-$18)/2=4

Step-by-step explanation: sssniperwolf

Answer:

10

Step-by-step explanation:

Answer:

Step-by-step explanation:

Draw a picture! You get a right triangle with vertical leg = 17,000 ft, and you want to find the hypotenuse.

sin(21°) = 17,000/hypotenuse

hypotenuse = 17,000/sin(21°) = 47,437.3 ft

Answer:

the base is 7 and the height is seven so the first answer

Answer:

x < -50

Step-by-step explanation:

Answer:

x < -50

Step-by-step explanation:

Answer:

The increase is $1547, he has $8047 in his account now.

Step-by-step explanation:

6500 increase 23.8% =

6500 × (1 + 23.8%) = 6500 × (1 + 0.238) = 8047

8047 - 6500 = 1547

Answer:

The only one that makes sense is A.

Hope this helps.

Step-by-step explanation:

V=LWH

Answer:

A

Step-by-step explanation:

I just took the quiz

Answer:

The value of x is 70°.

Step-by-step explanation:

Let's name the angle to the right of 125° as 'y'.

y = 180 - 125 (linear pair)

y = 55°

Now, we know that all the angles in a triangle sum up to 180°. (Angle Sum Property)

x = 180 - (55+55)

x = 180 - 110

x = 70°

Answer: because they didn't believe that he really could perform miracles

Step-by-step explanation: I'm a christian

Answer: 53.0

Step-by-step explanation:

Then the diameter equals 53.0122774

The diameter of the sphere is 53.01 inch

What is a Sphere?

A sphere is symmetrical, round in shape. It is a three dimensional solid, that has all its surface points at equal distances from the center. It has surface area and volume based on its radius. It does not have any faces, corners or edges.

The Surface Area of a Sphere = 4πr²

The Volume of a Sphere = ( 4/3 ) πr³

where r is the radius of the sphere

Given data ,

Let the diameter of the sphere be = d

The radius of the sphere be = r

The volume of the sphere is V = 78006 inch³

The Volume of a Sphere = ( 4/3 ) πr³

Substituting the values in the equation ,we get

( 4/3 ) πr³ = 78006 inch³

Now , Multiply by ( 3 / 4 ) on both sides , we get

πr³ = ( 78006 x 3 ) / 4

     = 58504.5 inch³

Divide by π on both sides , we get

r³ = 58504.5 / π

   = 18622.56 inch³

Taking cube roots on both sides , we get

r = 26.506 inch

So , the radius of the sphere is r = 26.506 inch

Now , the diameter of the sphere is d = 2 x r

                                                               = 2 x 26.506

                                                               = 53.01 inch

Hence , The diameter of the sphere is 53.01 inch

To learn more about sphere click :

https://brainly.com/question/27933834

#SPJ2

Answer: 83.2

x

11

−

166.4

x

Step-by-step explanation: Multiply  

104

by  

0.2

.

20.8

x

(

4

x

10

−

8

)

Apply the distributive property.

20.8

x

(

4

x

10

)

+

20.8

x

⋅

−

8

Simplify the expression.

Answer:

9/4 225%

Step-by-step explanation:

either one you need :)

Answer:

1.398 miles

Step-by-step explanation:

Formula: multiply the value in kilometers by the conversion factor '0.62137119223556'.

Answer:

(7x-10y)(7x-10y)

Step-by-step explanation:

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