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beks73 [17]
3 years ago
14

The parking garage charges $3 for the first hour of parking and $1.45 for each additional hour.

Mathematics
2 answers:
Alika [10]3 years ago
8 0
I don't know what you are asking but my best guess is it will be
$4.46 in total
slamgirl [31]3 years ago
4 0
What is your question? This just a statement. Are you looking for the graph of the results for every hour? 
1 hour=$3
2 hours=$4.45
3 hours=$5.09
4 hours=$6.54
5 hours=$7.99
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3 years ago
Batteries produced by a manufacturing company have had a life expectancy of 135 hours. Because of an improved production process
Nikolay [14]

Answer:  c. z = 1.35; Reject the null hypothesis

Step-by-step explanation:

Let \mu be the average life expectancy of its batteries.

As per given , we have

Null hypothesis : H_0 : \mu =135

Alternative hypothesis : H_a : \mu >135

Since H_a is right-tailed and population standard deviation is also known, so we perform right-tailed z-test.

Test statistic : \dfrac{\overlien{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}

where, n= sample size

\overlien{x}= sample mean

\mu= Population mean

\sigma=population standard deviation

For n=42,\ \overline{x}=140\ \&\ \sigma=24, we have

z=\dfrac{140-135}{\dfrac{24}{\sqrt{42}}}=1.35015431217\approx1.35

Critical one-tailed test value for 0.10 significance level :

z_{0.1}=1.28

 Decision : Since critical z value (1.28) < test statistic (1.35), so we reject the null hypothesis .

[When critical value is less than the test statistic value , we reject the null hypothesis .]

5 0
3 years ago
Solve for x: x - 6 ≤ 3
Mars2501 [29]

Answer:

x≤ 9

Step-by-step explanation:

add 6 to the other side to get x by itself....

8 0
3 years ago
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patriot [66]

Answer: 6/52 (Fraction)


Step-by-step explanation:

We know that there is 26 black cards, therefore 2 black 7's we also know there is four 4's in the pack therefore we add the 2 + 4 = 6 and it has to be in a fraction so it becomes 6/52

5 0
3 years ago
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otez555 [7]

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(b + a)^{10}

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