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4 years ago

Circle O has a circumference of 88π cm.

Mathematics

1 answer:

Lena [83]4 years ago

8 0

Answer

Step-by-step explanation:

R = C/(2*Pi).

So, in order to find the radius from the circumference, you use the formula R = C/(2*Pi). In other words, just divide the circumference by 2 times pi.

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Triangle ABC has vertices A(-4, 3), B(2, 3), and C(-5, 1). A

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Step-by-step explanation:

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3 years ago

Which set of ordered pairs does not represent a function?

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3 years ago

Solve 10y4+6y2-12y3-5y4

Olin [163]

Answer:

(5y² - 12y + 6) y²

Step-by-step explanation:

i'm going to assume that you mean to simplify the expression:

10y⁴+6y²-12y³-5y⁴ (group like terms)

= (10y⁴- 5y⁴) - 12y³ + 6y²

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4 years ago

The thickness (in millimeters) of the coating applied to hard drives is one characteristic that determines the usefulness of the

Ede4ka [16]

Answer:

The sampling distribution of X, for a sample of size 16, will be approximately normal with mean 2 mm and standard deviation 0.01 mm.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

For the population:

Mean 2 mm, standard deviation 0.04 mm

Describe the sampling distribution of X (for a sample of size 16).

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By the Central Limit Theorem, approximately normal with mean 2 and standard deviation $s = \frac{0.04}{\sqrt{16}} = 0.01$

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