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EleoNora [17]
3 years ago
12

Fill in the blanks to write this function when x=3

Mathematics
2 answers:
pentagon [3]3 years ago
8 0

Answer:

given....... \\  \\ h(x) =  - 4x - 7 \\  \\ putting \: ((x = 3)) \\  \\ h(3) =  - 4 \times 3 - 7 \\  \\ h(3) =  - 12 - 7 \\  \\ h(3) =  - 19

algol [13]3 years ago
7 0

Answer:

Step-by-step explanation:

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A study found that, in 2005, 12.5% of U.S. workers belonged to unions (The Wall Street Journal, January 21, 2006). Suppose a sam
Julli [10]

Answer:

There is not enough evidence to support the claim that union membership increased.  

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 400

p = 12.5% = 0.125

Alpha, α = 0.05

Number of women belonging to union , x = 52

First, we design the null and the alternate hypothesis  

H_{0}: p = 0.125\\H_A: p > 0.125

The null hypothesis sates that 12.5% of U.S. workers belong to union and the alternate hypothesis states that there is a increase in union membership.

This is a one-tailed(right) test.  

Formula:

\hat{p} = \dfrac{x}{n} = \dfrac{52}{400} = 0.13

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

Putting the values, we get,

z = \displaystyle\frac{0.13-0.125}{\sqrt{\frac{0.125(1-0.125)}{400}}} = 0.3023

Now, we calculate the p-value from the table.

P-value = 0.3812

Since the p-value is greater than the significance level, we fail to reject the null hypothesis and accept the null hypothesis.

Conclusion:

Thus, there is not enough evidence to support the claim that union membership increased.

8 0
3 years ago
What product lies between 5x7/10=
Paraphin [41]
5/1 • 7/10=
35/10=
3 5/10=
3 1/2

5 0
3 years ago
90 POINTS!!!!!<br> What show is this from?
Delicious77 [7]

Answer:

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6 0
2 years ago
Read 2 more answers
What is the range of f(x)=1/2^x
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Downloaded Photomath it’s going to help you a lot
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Pls look at this pic and help like i don't understand i will mark u as brainliest
dimulka [17.4K]

Answer:

48 cubic yard

Step-by-step explanation:

volume \: of \: pyramid \\  = area \: of \: base \times height \\  =  {4}^{2}  \times 3 \\  = 16 \times 3 \\  = 48 \:  {yard}^{3}  \\

3 0
3 years ago
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