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3 years ago

Circumference of circle is 16 pie inches. What is the are of the circle

Mathematics

2 answers:

tamaranim1 [39]3 years ago

8 0

Answer:

201.1 sq. m.

Step-by-step explanation:

Area = π · (d2)2 = 3.14 · (162)2 = 3.14 · (8)2 = 201.1 square meters.

Margarita [4]3 years ago

7 0

Answer:

64 pi

Step-by-step explanation:

We know that the diameter is 18 and the radius is 8. 8² is 64 and pi r² is area. 64 times pi is 64 pi! Hope this is useful!

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ehidna [41]

Answer:

45.1 km^2

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Step-by-step explanation:

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3 years ago

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g 78% of all Millennials drink Starbucks coffee at least once a week. Suppose a random sample of 50 Millennials will be selected

Tatiana [17]

Answer:

We know that n = 50 and p =0.78.

We need to check the conditions in order to use the normal approximation.

$np=50*0.78=39 \geq 10$

$n(1-p)=50*(1-0.78)=11 \geq 10$

Since both conditions are satisfied we can use the normal approximation and the distribution for the proportion is given by:

$p \sim N (p, \sqrt{\frac{p(1-p)}{n}})$

With the following parameters:

$\mu_ p = 0.78$

$\sigma_p = \sqrt{\frac{0.78*(1-0.78)}{50}}= 0.0586$

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Solution to the problem

We know that n = 50 and p =0.78.

We need to check the conditions in order to use the normal approximation.

$np=50*0.78=39 \geq 10$

$n(1-p)=50*(1-0.78)=11 \geq 10$

Since both conditions are satisfied we can use the normal approximation and the distribution for the proportion is given by:

$p \sim N (p, \sqrt{\frac{p(1-p)}{n}})$

With the following parameters:

$\mu_ p = 0.78$

$\sigma_p = \sqrt{\frac{0.78*(1-0.78)}{50}}= 0.0586$

6 0

3 years ago

Choose the equations that are not linear equations. - x - y = 2, x^2 + y = 4, x/2 - y^3 = 1, x = 5

tekilochka [14]

Answer:

x^2 + y = 4
x/2 - y^3 = 1

Step-by-step explanation:

Any equation with a product of variables, or with a variable in an exponent or denominator, is <em>not a linear equation</em>. Here, "product of variables" includes powers and roots—any expression with an exponent other than 1, or a total of exponents other than 1.

7 0

3 years ago

What is the name of the song 50 points and brainliest.

solong [7]

Answer:

Butterflies

Step-by-step explanation:

Thanks

6 0

3 years ago