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Kaylis [27]
3 years ago
5

(khan academy) please help

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
7 0

Answer:

c is the correct answer

Step-by-step explanation:

we simply multiply powers

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Find the area of this circle use 3.14 or 22/7 or pie round your answer to the nearest hundred if necessary
notka56 [123]

Answer:

The area of the circle is 50.24 mm ²

Step-by-step explanation:

To solve this exercise we need to use the area formula of a circle:

a = area

r = radius = 4mm

π = pi = 3.14

a = π * r²

a = 3.14 * (4mm )²

a = 3.14 * 16mm ²

a = 50.24 mm ²

The area of the circle is 50.24 mm ²

6 0
2 years ago
BRAINLIEST GOING TO THE FIRST ANSWER
Lesechka [4]

Answer:

w + 2.3 > 18

Step-by-step explanation:

MARK ME BRAINLIEST!!!!!!!!!

5 0
3 years ago
Read 2 more answers
Please help in Math!? What value of y makes the equation true?
Zepler [3.9K]
\frac{-7}{12} = \frac{y}{-36}

First, simplify \frac{y}{-36} to - \frac{y}{36} / Your problem should look like: - \frac{7}{12} = -\frac{y}{36}
Second, multiply both sides by 36. / Your problem should look like: -21=-y
Third, multiply both sides by -1. / Your problem should look like: 21 = y
Fourth, switch your sides. / Your problem should look like: y = 21

Answer: C) 21

5 0
3 years ago
#20 please help me with this Austin’s and an explanation please
s344n2d4d5 [400]

Answer:

10 2/15 hours

Step-by-step explanation:

If we have a candle that is 11 2/5 inches tall

It burns 1 1/8 inches per hour.  We need to divide to see how long the candle will last

11 2/5 ÷ 1 1/8

I will convert the mixed numbers to improper fractions

11 2/5 = (5*11+2)/5 = 57/5

1 1/8 = (8*1+1)/8 = 9/8

57/5 ÷ 9/8

Copy dot flip

57/5 * 8/9

456/45

Now we change it back to a mixed number

45 goes into 456  10 times with 6 left over

10 6/45

This simplifies to 10 2/15

6 0
3 years ago
Mike had a jar of nickels that had five more nickels than he originally thought. If the total amount of nickels was $4.35, how m
aivan3 [116]
A nickel is worth 5 cents. So if he has 5 nickels extra. They are worth 25 cents. Subtract 0.25 from 4.35 and you get 4.10. Now all you have to do is divide  4.10 by 0.05, which is a nickel. The answer is "Mike thought he had 82 nickels"
3 0
3 years ago
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