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Ivahew [28]
3 years ago
14

Choose all the equations that are true if x=9

Mathematics
2 answers:
Pani-rosa [81]3 years ago
6 0

Answer:yr

Step-by-step explanation:rt5r

Ymorist [56]3 years ago
4 0
D it’s the answer !!
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An industrial psychologist consulting with a chain of music stores knows that the average number of complaints management receiv
vova2212 [387]

Answer: See explanation

Step-by-step explanation:

1. Use the five steps of hypothesis testing.

Step 1: The aim of the research is to conduct the five steps of hypothesis testing.

Step 2:

Null hypothesis: H0 u= 4

Population mean: H1 u = 4

Alternate hypothesis: u ≠ 4

Population mean: u ≠ 4

Step 3 and step 4 are attached.

Step 5: Based on the calculation, the calculated value of t is less than the t critical value, therefore, the null hypothesis will be failed to be rejected.

2. Sketch the distributions involved

This has been attached.

3. Explain the logic of what you did to a person who is familiar with hypothesis testing, but knows nothing about t tests of any kind.

The distribution is "t".

The means is tested by using T-test.

Chi-square is used to test the single variance.

8 0
2 years ago
The depth of snow after n hours of a snowstorm is represented by the function f(n + 1) = f(n) + 0.8 where f(0) = 2.5. Which stat
Alja [10]
C

"When the storm began", it means it has been snowed for 0 hours, so n=0.
f(0)=2.5, thus the <span>depth of snow was 2.5 inches when the storm began.

f(n+1)=f(n)+0.8, so f(n+1)-f(n)=0.8
it means when the time increases by one hour, the depth of snow increases by 0.8 inches.</span>
4 0
3 years ago
Read 2 more answers
Circle the common factors of 20w and 40wz. Options are 10, 20w, 10xz, 5z, 2w, z, 9w, or w. Can you please explain how you guys g
IRISSAK [1]
10, 20w, 2w, and we are factors of 20w and 40wz
4 0
3 years ago
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What is the value of the expression: -9.2 + (-7)?
HACTEHA [7]

Answer:

-16.2

Step-by-step explanation:

-9.2+(-7)=-16.2

8 0
3 years ago
Ellen rotated triangle ABC 90° clockwise around point A to form triangle ACD and rotated triangle ABC 180° clockwise around poin
Serjik [45]
It is a. You didnt load the pic but if you did if you rotated Dc 90 it would complete BE. 
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3 years ago
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