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Airida [17]
3 years ago
10

What is the slope of the line through the points (4, -7) and (9, 2)?

Mathematics
1 answer:
ira [324]3 years ago
3 0

the answer

y/x so its 9/5

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Please help me on this one
tester [92]

south America = 2.2%

2.2% = 0.022

0.022 = 22/1000 which reduces to 11/500

4 0
4 years ago
The perimeter of a triangle is 60 inches. If the sides of the triangle are 2x, 3x, and 5x, find the length of the shortest side.
Ira Lisetskai [31]
2x + 3x + 5x = 60
10x = 60
a = 6
Shortest side = 2x = 12 inches

6 0
4 years ago
Read 2 more answers
if ZA and ZB are supplementary angles. if mZA = (3x-23) and mZB= (2x-12) then find the measure of ZB​
Brilliant_brown [7]

Answer:

mZB= 74

Step-by-step explanation:

ZB+ZA=180

3X-23+2X-12=180

5X-35=180

5X=180+35

5X=215  (then divide both sides by 5 to x be left alone.)

X=43....so ZB=2(43)-12

                     =86-12=74

3 0
3 years ago
A medical researcher is working on a new treatment for a certain type of cancer. The average survival time after diagnosis for t
Nitella [24]

Answer:

The suitable results are:

Option A: The alternative hypothesis could really be true but because the sample size is small, the power is very low so the researchers are likely to run an experiment whose results lead them to make a type II error.

Option D: Inasmuch there is no statistical evidence to accept the null hypothesis. The null hypothesis could be true and there is no difference between the new and standard treatments survival rate.

Explanation:

Below are the options  suitable for results:

Option A: The alternative hypothesis could really be true but because the sample size is small, the power is very low so the researchers are likely to run an experiment whose results lead them to make a type II error - Reason been that, as the sample size increase, so also does the power of the test increase. Therefore, because the power is too small, the researchers are likely to commit type 2 error.

Option D: Inasmuch there is no statistical evidence to accept the null hypothesis. The null hypothesis could be true and there is no difference between the new and standard treatments survival rate.

4 0
4 years ago
David has a paper route. He delivers a certain number of papers every day. For each paper he delivers, he makes the same amount
Vaselesa [24]
Find how many hours he does in a day and then divide that by the number of papers he delivers every day. 
7 0
3 years ago
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