3 years ago

When you solve for the area of a circle, and you get a answer, do you have to put squared?

Mathematics

1 answer:

SSSSS [86.1K]3 years ago

6 0

It's not a must so you don't really have to it depends on the question

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Kristen earns $13.50 for each hour she works. On Monday she worked 4 hours. She also worked Tuesday. If she earned a total of $1

insens350 [35]

Answer:8 hours on Tuesday

Step-by-step explanation:13.50 x 4=54

162-54=108

108÷13.50=8

8 0

2 years ago

Jennifer is saving money to buy a bike. The bike costs $223. She has $115 saved, and each week she adds $18 to her savings.

GuDViN [60]

Answer:

6 weeks

Step-by-step explanation:

18x 6 = 108

116+108=223

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2 years ago

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Solve for p. 2(p + 1) = 24 What is the answer?

Andrew [12]

<span>2(p + 1) = 24
Use distributive property
2p+2=24
Subtract 2 from both sides
2p=22
Divide 2 on both sides
Final Answer: p=11</span>

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2 years ago

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A square garden has 49 square feet. So the perimeter of the garden must be----feet.

lianna [129]

The side length of a square is the square root of the area:

Side length = √49 = 7 feet.

The perimeter of a square is 4s = 4*7 = 28 feet.

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2 years ago

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The average college lecture hall (auditorium) can seat 60 students with a standard deviation of 21. Assume that a total of 60 le

fiasKO [112]

Answer:

The standard deviation of the sample mean is $\sigma _ {\= x } = 2.711$

Step-by-step explanation:

From the question we are told that

The mean is $\= x = 60$

The standard deviation is $\sigma = 21$

The sample size is $n = 60$

Generally the standard deviation of the sample mean is mathematically represented as

$\sigma _ {\= x } = \frac{\sigma }{\sqrt{n} }$

substituting values

$\sigma _ {\= x } = \frac{ 21 }{\sqrt{60} }$

$\sigma _ {\= x } = 2.711$

4 0

2 years ago