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IceJOKER [234]
2 years ago
5

2/5 as a decimal and percent

Mathematics
1 answer:
lukranit [14]2 years ago
7 0
Decimal: .4
Percent: 40%
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The measures of the angles of a triangle are shown in the figure below. solve for x ​
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Answer:

Brainliest????

Step-by-step explanation:

X=23°

6 0
3 years ago
A sample of 47 observations is selected from a normal population. The sample mean is 30, and the population standard deviation i
erma4kov [3.2K]

Answer:

We accept the null hypothesis and reject  the alternate hypothesis. There is no evidence to conclude that the population mean is greater than 29. The population mean is less than or equal to 29.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 29

Sample mean, \bar{x} = 30

Sample size, n = 47

Alpha, α = 0.05

Population standard deviation, σ = 5

First, we design the null and the alternate hypothesis

H_{0}: \mu \leq 29\\H_A: \mu > 29

a) This is a one-tailed test because the alternate hypothesis is in greater than direction.

We use One-tailed z test to perform this hypothesis.

b) z_{stat} > z_{critical} , we reject the null hypothesis and accept the alternate hypothesis and if z_{stat} < z_{critical} , we accept the null hypothesis and reject  the alternate hypothesis.

c) Formula:

z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }

Putting all the values, we have

z_{stat} = \displaystyle\frac{30 - 29}{\frac{5}{\sqrt{47}} } = 1.37

d) Now, z_{critical} \text{ at 0.05 level of significance } = 1.64

Since,  

z_{stat} < z_{critical}

We accept the null hypothesis and reject  the alternate hypothesis. There is no evidence to conclude that the population mean is greater than 29. The population mean is less than or equal to 29.

e) P-value is 0.0853

On the basis of p value we again accept the null hypothesis.

5 0
3 years ago
A sheet of origami paper is in the shape of a square with a side length of 7 inches, as shown. What is the area of the sheet of
vlabodo [156]
??... what lol good job tho
8 0
2 years ago
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Between which two numbers is √8 located on a number line? ​
Lady_Fox [76]

Answer:

√8 is between 2 and 3.

Step-by-step explanation:

♡ im sorry if its wrong ♡

5 0
2 years ago
PLEASE HELP ME ON THIS
cricket20 [7]
The answer is 96. just multiply 6 *2 =12*2=24*2=48*2=96
5 0
3 years ago
Read 2 more answers
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