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3 years ago

The diameter of a circle is? So what does diameter mean?

Mathematics

2 answers:

777dan777 [17]3 years ago

6 0

Answer:

Twice the radius length.

Step-by-step explanation:

Generally, the diameter is the length of a line that extends from one point on a circle to another point on a circle as long as that line passes through the center of the circle. Essentially, a diameter, in short, is twice the length of the radius of a circle.

madreJ [45]3 years ago

3 0

Answer:

Its 2 x radius

Step-by-step explanation:

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What is the answer to -3+p=?

nata0808 [166]

There is not an answer to an expression.

-3+p is an expression, unless there was an equal sign and a sum at the end, that is when we can solve for the variable x.

-3+p simply equals -3+p

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3 years ago

Read 2 more answers

Pennsylvania Refining Company is studying the relationship between the pump price of gasoline and the number of gallons sold. Fo

Semenov [28]

Complete Question

Pennsylvania Refining Company is studying the relationship between the pump price of gasoline and the number of gallons sold. For a sample of 14 stations last Tuesday, the correlation was 0.65.At the 0.01 significance level Can the company conclude that the correlation is positive

Answer:

Yes the company conclude that the correlation is positive

Step-by-step explanation:

From the question we are told that

The sample size is n = 14

The correlation is r = 0.65

The null hypothesis is $H_o : r < 0$

The alternative hypothesis is $H_1 : r > 0$

Generally the standard deviation is mathematically evaluated as

$Sr = \sqrt{1- r}$

$Sr = \sqrt{1- 0.65}$

$Sr = 0.616$

The degree of freedom for the one-tail test is

$df = n- 2$

$df = 14- 2$

$df = 12$

The standard error is evaluated as

$SE = \frac{0.616}{ \sqrt{12} }$

$SE =0.1779$

The test statistics is evaluated as

$t = \frac{r }{SE}$

$t = \frac{0.65 }{0.1779}$

$t = 3.654$

The p-value of of t is obtained from the z table, the value is

$p-value = P(t < 3.654) = 0.00012909$

Given that $p-value < \alpha$ then we reject the null hypothesis

Hence the company can conclude that the correlation is positive

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3 years ago

0.5=0.4y - 0.25x Solve for y<br>

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Answer:

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Step-by-step explanation:

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Step-by-step explanation: Hope this helped :)

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Answer:

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Step-by-step explanation:

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