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ExtremeBDS [4]
2 years ago
8

The pentagon ABCDE is graphed on a coordinate plane with vertices A(0, 0), B(3, 5), C(3, 8), D(8, 5), and E(8, 0). What is the p

entagon's perimeter?
A. 24.0 units

B. 16.0 units

C. 27.6 units

D. 32.4 units
Mathematics
1 answer:
Wewaii [24]2 years ago
8 0
D because you have to calculate stuff
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A = b * h
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3 years ago
Luis works 45 hours and earns 10 an hour. How much money would he earn in 3 weeks.
daser333 [38]

Answer: $1,350

Step-by-step explanation:

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3 years ago
A psychological experiment was conducted to investigate the length of time (time delay) between the administration of a stimulus
aleksklad [387]

Answer:

The P-value of this sample is 0 and is less than the significance level (0.05), so the effect is significant and the null hypothesis is rejected.

As there is significant evidence to reject H_0: \mu= 1.6, we can say that there is significant evidence to claim that the mean time delay for the hypothetical population of all persons who may be subjected to the stimulus differs from 1.6 seconds.

The significance level for this test is 0.05.

Step-by-step explanation:

In this case, we want to prove if there is significant evidence that the mean differs from 1.6 seconds. That is the same as having evidence to reject the the hypothesis H_0:\mu= 1.6 (the null hypothesis always have the equal sign).

We have to test the null hypothesis

H_0:\mu= 1.6

The significance level for this test is 0.05

Calculation of the t-statistic:

t=\frac{M-\mu}{s/\sqrt{n}} =\frac{2.2-1.6}{0.57/\sqrt{36}} =\frac{0.6}{0.063}= 9.47

If we look up in a t-table for t=9.47 and df=(36-1)=35, we get this value appears with a probability of zero. A large number like that is very unlikely to happen.

The P-value of this sample is 0 and is less than the significance level (0.05), so the effect is significant and the null hypothesis is rejected.

As there is significant evidence to reject H_0: \mu= 1.6, we can say that there is significant evidence to claim that the mean time delay for the hypothetical population of all persons who may be subjected to the stimulus differs from 1.6 seconds.

6 0
3 years ago
Please help IN SERIOUS NEED WALK ME THROUGH IY TO
VLD [36.1K]

Answer:

Step-by-step explanation:

Its gonna be 132 degrees because you need to do 180-48

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3 years ago
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Step-by-step explanation:

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3 years ago
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