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julsineya [31]
2 years ago
13

Find the slope of a line PERPENDICULAR TO LM: L(3,-5), M(-4, -1)

Mathematics
1 answer:
Ede4ka [16]2 years ago
7 0

Answer:

\frac{7}4

Step-by-step explanation:

First, we need to find the slope, which is defined as the change in y over the change in x:

\frac{-5-(-1)}{3-(-4)} = \frac{-4}{7}

To find a slope that's perpendicular to that, we just take the negative reciprocal of that slope, which is \frac{7}4.

I hope this helped.

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What is the perimeter of this rectangle?
givi [52]
The perimeter is defined as the sum of all the sides of any polygon.

A rectangle is a polygon with 4 sides and 2 pairs of parallel sides. Therefore, in order to find the perimeter of any rectangle, we can either add up all the sides given to you or use a formula which states that:

                                            P = 2L + 2W
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3 0
3 years ago
You spin a spinner that is equally divided into 7 parts. 2 parts white, 2 parts are speckled, and 3 parts are blue.
kap26 [50]

Answer:

3/7

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6 0
2 years ago
Need help on numbers 10 and 11 please!! sos
Harlamova29_29 [7]
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3 years ago
A professor records the difference between the marks scored by the students in the class test last week and those scored in the
dezoksy [38]

Answer: (10.82\ , 13.18)

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The confidence interval for population mean is given by :-

\mu\pm\ z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

Given : Sample size : n= 35  , large sample (n>30)

Mean difference : \overline{x}=12

Standard deviation : \sigma=3

Significance level : \alpha=- 1-0.999=0.001

Critical value : z_{\alpha/2}=z_{0.0005}=3.4807567

Now, the 99.9% confidence interval for the mean difference between the marks scored last week and marks scored this week by all the students will be :-

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Hence, the  99.9% confidence interval for the mean difference between the marks scored last week and marks scored this week by all the students = (10.82\ , 13.18)

4 0
2 years ago
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