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Iteru [2.4K]
2 years ago
12

What is the area, in square centimeters, of a 8cm circle

Mathematics
1 answer:
Hatshy [7]2 years ago
4 0
If the diameter of the circle is 8cm then the radius must be 4cm. Hence area of the circle must be =50.26cm squared
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Square root of 90 to the nearest integer
sergiy2304 [10]

Answer:

9

Step-by-step explanation:

since 9.48683298051 is the square root of 90 and has a 4 in the tenths number and since 4 isnt bigger than 5 i would say it rounds to 9

6 0
3 years ago
Read 2 more answers
Over the last three evenings, Donna received a total of 129 phone calls at the call center. The third evening, she received 3 ti
lakkis [162]

Answer:

Number of calls received in 1st evening = 24

Number of calls received in 2nd evening = 33

Number of calls received in 3rd evening = 72

Step-by-step explanation:

Let

number of calls received in first evening be "x"

number of calls received in 2nd evening be "y"

number of calls received in 3rd evening be "z"

Total, in 3 evenings, we have 129 phone calls, so we can write:

x + y + z = 129

3rd evening, 3 times as first evening. We can write:

z = 3x

2nd evening, 9 MORE THAN FIRST. So we can write:

y = 9 + x

Now we replace 2nd and 3rd equation in 1st equation to get:

x + y + z = 129

x + 9 + x + 3x = 129

Now, first, we solve for x:

x + 9 + x + 3x = 129\\5x+9=129\\5x=120\\x=24

Solving for y:

y = 9 + x

y = 9 + 24

y = 33

Solving for z:

z = 3x

z = 3(24)

z = 72

Thus,

Number of calls received in 1st evening = 24

Number of calls received in 2nd evening = 33

Number of calls received in 3rd evening = 72

5 0
3 years ago
Ann buys a dress in a sale. The normal price of the dress is reduced by 20%. The normal price is £36.80. Work out the sale price
marshall27 [118]
Hello!

Let's do this step by step!

#1

"Reducing" means to make something smaller, like a discount. So we are reducing the price of the dress by 20%. This means we must first find what 20% of the dress's price is and then subtract that from the price.

#2

36.80 * 20% = 7.36

So, 20% of 36.80 is 7.36. Subtract that: 

#3

36.80 - 7.36 = 29.44

Answer: 

The sale price of the dress is $29.44. 

Good day!
5 0
2 years ago
Any suggestions or answers
Studentka2010 [4]

your answer should be c.

A water balloon holds roughly 1.5 oz. of water

and pat has 19 water balloons to fill.

Multiply 1.5 and 19 and you get 28.5, or about 30 oz.

hope i helped!

3 0
3 years ago
A pet store has 18 snakes and 12 lizards
kykrilka [37]

Answer:

Snakes to lizards:  6:2

Lizards to all reptiles: 2:8

Step-by-step explanation:

I am sorry if I am wrong. And if I am right yay! Though I am pretty sure I am right-

6 0
3 years ago
Read 2 more answers
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