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professor190 [17]
3 years ago
14

Which absolute value function, when graphed, represents the parent function, f(x) = |x|, reflected over the x-axis?

Mathematics
2 answers:
Step2247 [10]3 years ago
8 0
<h2>Answer: A. f(x) = –|x|</h2>

tatyana61 [14]3 years ago
6 0

Answer:

A. f(x) = -|x|

Step-by-step explanation:

just did it

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A publisher reports that 45% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is
nexus9112 [7]

Answer:

z=\frac{0.40 -0.45}{\sqrt{\frac{0.45(1-0.45)}{370}}}=-1.933  

p_v =2*P(z  

Step-by-step explanation:

Information given

n=370 represent the sample selected

\hat p=0.4 estimated proportion of  readers owned a laptop

p_o=0.45 is the value that we want to test

z would represent the statistic

p_v represent the p value

Creating the hypothesis

We need to conduct a hypothesis in order to test if the true proportion of readers owned a laptop is different from 0.45, the system of hypothesis are:  

Null hypothesis:p=0.45  

Alternative hypothesis:p \neq 0.45  

The statistic is:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing we got:

z=\frac{0.40 -0.45}{\sqrt{\frac{0.45(1-0.45)}{370}}}=-1.933  

Calculating the p value  

We have a bilateral test so then the p value would be:

p_v =2*P(z  

8 0
3 years ago
Correct answer gets brainliest
Varvara68 [4.7K]

Answer:

not completely sure but I think its B

7 0
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Please give me correct answer this is major
MA_775_DIABLO [31]

Answer:

d

Step-by-step explanation:

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ABCD is a parallelogram angle a is equal to (5x-2) and angle c is equal to 48 find x
bulgar [2K]
For a parallelogram, we know that there are to pairs of angles that are the same and that all 4 angles add to 360.

2(5x-2)+2(48)=360
2(5x-2)+96=360
10x-4+96=360
10x+92=360
10x=268
x=26.8

Final answer: x=26.8

Hope this helps!
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