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3 years ago

Help mah ASAP PLEASEEE

Mathematics

1 answer:

Yakvenalex [24]3 years ago

6 0

Answer:

But on what question??

Step-by-step explanation:

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Find the perimeter. Simplify your answer completely.

Vladimir79 [104]

Answer:119 4/7

Step-by-step explanation:

2/14+6/14+2/14+4/14+1/14+3/14+4/14= 22/14

10+35+10+12+24+15+12=118

118 22/14

119 8/14

119 4/7

5 0

3 years ago

Read 2 more answers

Given: AD diameter of circle P. m AB + m BC = measure of A)minor arc AC B) major arc AC

Makovka662 [10]

In the given circle, m AB is represented by angle 1 and m BC is represented by angle 2 .

And

$m \ AB + m \ BC = \angle 1 + \angle 2 = m \AC$

And it represents the minor arc AC .

So the correct option is A.

3 0

3 years ago

Read 2 more answers

HELP HELP HELP I AM TIMED PLZ PLZ HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

kenny6666 [7]

Answer:64

Step-by-step explanation:

8 0

3 years ago

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Assume that a simple random sample has been selected from a normally distributed population. Find the test statistic t.

lawyer [7]

Using the t-distribution, it is found that the p-value of the test is 0.007.

At the null hypothesis, it is tested if the mean lifetime is not greater than 220,000 miles, that is:

$H_0: \mu \leq 220000$

At the alternative hypothesis, it is tested if the mean lifetime is greater than 220,000 miles, that is:

$H_1: \mu > 220000$ .

We have the standard deviation for the sample, thus, the t-distribution is used. The test statistic is given by:

$t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}$

The parameters are:

$\overline{x}$ is the sample mean.
$\mu$ is the value tested at the null hypothesis.
s is the standard deviation of the sample.
n is the sample size.

For this problem:

$\overline{x} = 226450, \mu = 220000, s = 11500, n = 23$

Then, the value of the test statistic is:

$t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}$

$t = \frac{226450 - 220000}{\frac{11500}{\sqrt{23}}}$

$t = 2.69$

We have a right-tailed test(test if the mean is greater than a value), with t = 2.69 and 23 - 1 = 22 df.

Using a t-distribution calculator, the p-value of the test is of 0.007.

A similar problem is given at brainly.com/question/13873630

8 0

3 years ago

Factor –7x3 21x2 3x – 9 by grouping. what is the resulting expression? (3 – 7x)(x2 – 3) (7x – 3)(3 x2) (3 – 7x2)(x – 3) (7x2 – 3

juin [17]

The factors of the expression are $\rm(3 - 7x^2)(x - 3)$

<h3>How to find factors in the expression?</h3>

First group the first two terms and the last two terms together respectively.

The factors of the expression are given by;

$\rm= -7x^3 + 21x^2 + 3x - 9\\\\=-7x^2(x - 3) + 3(x - 3)\\\\=(3 - 7x^2)(x - 3)$

Hence, the factors of the expression are $\rm \rm(3 - 7x^2)(x - 3)$ .

To know more about factors click the link given below.

brainly.com/question/9645056

8 0

2 years ago