solve for r a= pi r squared

Answer:

D

Step-by-step explanation:

Answer:

fiction is 90

non fiction is 70

420 books

Step-by-step explanation:

Answer:

fiction = 30%

non fiction = 70%

420 total books, with the amount of nonfiction books that were added being 225

Step-by-step explanation:

Answer:

X-intercepts: (-5,0)

Y-Intercepts: (0,2)

Step-by-step explanation:

Step-by-step explanation:

x intercepts- (-5,0)

y intercepts- (0,2)

Answer:

d i believe

Step-by-step explanation:

i don't believe that polynomials have two different letters

Answer:

Solving this simultaneous equation by using substitution method 3x-2y=12 and x+3y=-7 ​we get x=2 and y=-3

Solution set = {2,-3}

Step-by-step explanation:

We need to solve this simultaneous equation by using substitution method 3x-2y=12 and x+3y=-7 ​

let:

[tex]3x-2y=12--eq(1)\\x+3y=-7 --eq(2)[/tex]

Finding value of x from equation 2 and putting in eq(1)

[tex]From \ eq(2)\\x+3y=-7\\x=-7-3y[/tex]

Putting value of x in eq(1)

[tex]3x-2y=12\\Put \ x=-7-3y\\3(-7-3y)-2y=12\\Solving\\-21-9y-2y=12\\-11y=12+21\\-11y=33\\y=\frac{33}{-11}\\y=-3[/tex]

So, we get y=-3

Now put value of y in equation 2 to find value of x

[tex]x+3y=-7\\x+3(-3)=-7\\x-9=-7\\x=-7+9\\x=2[/tex]

So, we get value of x =2

So, solving this simultaneous equation by using substitution method 3x-2y=12 and x+3y=-7 ​we get x=2 and y=-3

Solution set = {2,-3}

Answer:

-6x - 12

Step-by-step explanation:

-2 ( 3x + 6 )

= -6x - 12

Answer:

-18

Step-by-step explanation:

-2 multiplied by 3 is -6 so plus 6 would be -18

Answer: 2W-17

Step-by-step explanation: HOPE THIS HELPS

Answer:

Step-by-step explanation:

[tex]2z - 1 = - 15[/tex]

Move -1 to the right side of the equation

[tex]2z = - 15 + 1 \\ 2z = - 14[/tex]

Divide both sides by 2

[tex] \frac{2z}{2} = - \frac{14}{2} \\ [/tex]

We have the final answer as

Hope this helps you

Answer:

60 pictures/5 hours= 12 pics an hour

Step-by-step explanation:

Answer: 19(5)^n-1 is correct

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

She is reading 15 pages a day so the arrow is going up

Answer:

fraction - 1/2 decimal - 0.5 percent - 50%

Step-by-step explanation:

Answer:

A, D, and F

Step-by-step explanation:

Tiara did multiply and regroup correctly in the first partial product. Tiara did not multiply and regroup correctly in the second partial product. Tiara was not correct when she added her 2 partial products.

Tiara should of got 18,291 but instead she got 16,291.

When she went to the part to multiply 3x4 she didn't add the remaining 2 from the 3x6+2. So if she did 3x4+2 she would of got the number 14 instead of 12 to put down in the second partial product. Which would make the addition part of it as 4,221 + 14070 = 8291 instead of 4,221 + 12,071 = 16, 291

I hope you understand :)

Answer: the slope of Y= 5\4x -7\4  is -4

.

Step-by-step explanation:

Answer:

5/4

Step-by-step explanation:

In the y=mx +b equation, M is the slope. So its 5/4

Answer:

$900

Step-by-step explanation:

18% of $5000

0.18×5000=900

The customer will save $900

Answer:

the answer is 192 :))))

Answer:

63 mill

Step-by-step explanation:

Answer:c

Step-by-step explanation:

78.4 arcs are available for farming and 19.6 are not available

Answer:

like 22 acres are available

Answer:

5:55

Step-by-step explanation:

10 plus 7 in time is 5 and 15 plus 40 is 55

Answer:

1/8 mile

Step-by-step explanation:

This is a subtraction problem. We need to subtract 5/8 from 3/4. We need a common denominator of 8.

3/4 - 5/8 = 6/8 - 5/8 = 1/8

Answer: 1/8

Answer:

Malika runs 1/8 of a mile more than Andrew

Step-by-step explanation:

The easiest way to figure this out is by converting both of the fractions to have the same denominator. Do not convert them to decimals because the answer might not always turn out to be right.

If we keep Andrew's distance of 5/8 the same we can easily convert Malika's distance of 3/4 to the same denominator by multiplying it by two

[tex]\frac{3}{4} *\frac{2}{2} = \frac{6}{8}[/tex]

Now that the denominators are the same, we are able to subtract the fractions.

[tex]\frac{6}{8} -\frac{5}{8} = \frac{1}{8}[/tex]

Malika runs 1/8 of a mile more than Andrew

Answer:the answer is C by simlifying 8 to 2 three   to make both powers  base two and subtracting the exponets

Step-by-step explanation:

Answer:

the answer is 3 1/5 because you add and multiply and divide

Step-by-step explanation:

Answer:

8/7

Step-by-step explanation:

first set = 5/7

second set = 3/7

3/7+5/7=8/7

Answer:

24/20 or simplified, 6/5

Step-by-step explanation: when adding fractions, you line up the numerators and denominators but only add the numerators. to simplify you need to find a number that both the numerator and denominator can be divided by.

Answer:

13

Step-by-step explanation:

Substitute -2 for m to get (-2)^2-3(-2)+3=4+6+3=13

Answer:

x = 33 (33.3)

Step-by-step explanation:

x/100 X 75 = 25

75x/100 = 25

75x = 2500

x = 33 (if rounded to the nearest whole number)

x = 33.3 (if rounded to the nearest tenth)

Answer:

0.012

Step-by-step explanation:

Answer:

10.67707825

Step-by-step explanation:

that should be the correct answer

Answer:

32/60 and 33/60

Step-by-step explanation:

Common Denominator is 60.

8x4=32

15x4=60

8/15= 32/60

11x3=33

20x3=60

11/20= 33/60