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3 years ago

Work out the area of the circle and leave it in cm plz

Mathematics

2 answers:

Marat540 [252]3 years ago

5 0

Answer:

132.7495 cm^2

Step-by-step explanation:

area of circle=πr^2

radius=6.5

6.5^2

42.25

42.25*3.142

132.7495

miskamm [114]3 years ago

3 0

Answer:

132.7495 cm

Step-by-step explanation:

13/2=6.5

6.5*6.5=42.25

42.25*3.142=132.1495

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Figure ABCD is a kite. Find the<br> value of x.

julsineya [31]

Answer:

x=5

Step-by-step explanation:

i think you posted this question twice, but here it is:

in order for this figure to truly be a kite, AD and AB have to be equal.

So:

4x=x+15

now we must solve the equation:

3x=15

x=5

5 0

3 years ago

A bookstore manager marks down the price of older hardcover books,which originally sell for b dollars,by 46 percent. What is the

gladu [14]

We are given original selling price of book = $b.

Price is marked down by 46%.

46% can be written as 46/100 in decimals it would be 0.46.

Therefore, markdown as a decimal is 0.46

Now, markdown is 0.46 of original price = 0.46b

Therefore, new price after marked down can be written by expression =

b - 0.46b = 0.56b.

<h3>Therefore, the expression for the sale price of the hardcover book is 0.56b.</h3>

If original retail price was = $29.00.

The sale price would be 0.56b = 29*0.56 = $15.66.

Total saving = 29-15.66 = $13.34.

Therefore, you save $13.34 by paying the sale price $15.66.

8 0

4 years ago

Read 2 more answers

If The veterinarian weighs Jim's two dogs. His collie weighs 40 pounds. His terrier weighs 288 ounces. What is the total weight

Elodia [21]

Answer: 58

Step-by-step explanation: You simply convert the 288 ounces into pounds.

(If you don't know how to divide the ounces by 16) Anyways once you get that you get 18 pounds and then add 18+40 to get your answer

6 0

3 years ago

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down,drag into the correct p

boyakko [2]

Answer:

$\boxed{\sf \ \ 9x^2-18x-7 \ \ divided \ by \ (3x+1) \ is \ (3x-7) \ }$

Step-by-step explanation:

Hello,

let's find a and b reals so that

$9x^2-18x-7=(3x+1)(ax+b)$

$(3x+1)(ax+b)=3ax^2+(3b+a)x+b$

we identify the terms in $x^2$

9 = 3a

we identify the terms in x

-18 = 3b + a

we identify the constant terms

-7 = b

so ti goes with a = 9/3 = 3, b = -7

so we can write

$9x^2-18x-7=(3x+1)(3x-7)$

so $9x^2-18x-7 \ divided \ by \ (3x+1) \ is \ (3x-7)$

hope this helps

8 0

3 years ago

The painter made— or quart of purple paint

Andreas93 [3]

Answer:

32 oz

Step-by-step explanation:

Im assumin you mean how many oz

3 0

3 years ago