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m_a_m_a [10]
3 years ago
13

Find the slope of the line that passes through the points (-4.2) and (6.6). ​

Mathematics
2 answers:
avanturin [10]3 years ago
7 0
The answer is must be 2/5
Stolb23 [73]3 years ago
3 0

Step-by-step explanation:

(6-2)/(6+4)= 4/10= 2/5 is the slope

answer is D

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Suppose that the annual rainfall in Ferndale, California, is known to be normally distributed, with a mean of 35.5 inches and a
erastovalidia [21]

The average annual rainfall will be more than 40.6 inches in about 2.1 percent of the years.

<h3>What is the average annual rainfall?</h3>

Generally, the equation for the probability is mathematically given as

P( X < x) = p( Z < x - \mu / \sigma)

Therefore

P( X > x) = 0.021

P( X < x ) = 1 - 0.021\\\\\p( X < x) = 0.979

P( Z < x - \mu / \sigma) = 0.979

The z score for the probability of 0.979 is 2.034, according to the table of z values.

x - \mu / \sigma \\\\x= 2.034

In the given equation, replace the values of mu and sigma with their respective values, and then solve for x.

x - 35.5 / 2.5 \\x= 2.034

In conclusion, The average annual rainfall will be more than 40.6 inches in about 2.1 percent of the years.

Read more about average

brainly.com/question/24057012

#SPJ1

7 0
2 years ago
please help me as soon as possible ! I have till 12AM to finish all my work I have a ton please help! :)
leonid [27]

Answer: second one, then the 4th one

Step-by-step explanation:

5 0
4 years ago
I need help Someone please help me!!
Zanzabum
2. The area for a circle is as follows:
A = π{r^2}

The radius of the circle is 4 in, so we plug that into the equation.

A = π (4{in.^2})

4 {in.^2} = (4 in.)(4 in.) = 16 {in.^2}

A = 16π {in.^2}

This is the area for the whole pizza, so divide that by 2 to get the area of the pepperoni

a) 8π {in.^2}

For the bacon, we can just divide the value we already have by 2, since it is half the area of the pepperoni

b) 4π {in.^2}

3. This question is asking for the circumference, whose equation is as follows:
C = 2 π r

We can use the area formula, A = π{r^2} to find the radius of this circle
36π = π{r^2}

Divide both sides by π:
36 = {r^2}

Square root both sides:
r = 6 in.

Plug in this value to the circumference formula, C = 2 π r
C = (2)(π)(6 in.)

Your final answer is:
C = 12π in.
3 0
3 years ago
Is this triangle a right triangle? yes or no?
svlad2 [7]

Answer:

Yes.

Step-by-step explanation:

You can use the Pythagorean theorem to figure this out.

5²+12²=13²

25+144=169

169=169

You can also look at the bottom left corner, which is a right angle. All triangles containing right angles are right triangles.

You can also base your answer off of the fact that triangles are kind of like <u>G</u>oogle: They're always right. (jk no that's not true neither are always right)

Note:

If you're a Connexus student, please join my class on Quizlet using this link: https: // quizlet. com / join / 6nmuZyd2M (copy-paste into search, then take out ALL spaces)

8 0
2 years ago
PLEASE HELP!!!
Grace [21]
<h3>Answer: B)  2.9  approximately</h3>

==================================================

Explanation:

The weird or fancy looking E symbol is the greek uppercase letter sigma. It is effectively the english version of S to represent summation. So we add up all the (x-\overline{x})^2 terms to get this. Luckily this has already been done for us in the table where they wrote "sum = 34", so \sum(x-\overline{x})^2 = 34

From here, we substitute this into the formula, along with n = 5 since there are 5 items in the original list

So,

s = \sqrt{\frac{1}{n-1}\sum(x-\overline{x})^2} \\\\s = \sqrt{\frac{1}{5-1}*34} \\\\s = \sqrt{\frac{1}{4}*34} \\\\s = \sqrt{0.25*34} \\\\s = \sqrt{8.5} \\\\s \approx 2.91547594742266 \\\\s \approx 2.9 \\\\

This computes the sample standard deviation. To get the population standard deviation, you'd basically change the "n-1" to simply "n", and the rest of the formula is identical.

8 0
3 years ago
Read 2 more answers
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