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antiseptic1488 [7]
3 years ago
6

2 (3/5x + 3) - (2/3x-1)

Mathematics
1 answer:
-BARSIC- [3]3 years ago
5 0
I hope this is right

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A states division of motor vehicles claims that 60% of teens pass their drivers test on the first attempt. an investigative repo
____ [38]

Answer: There is convincing evidence at the  the significance level that the DMV's claim is incorrect.

Step-by-step explanation:

Since we have given that

Hypothesis:

H_0:p=0.6\\\\H_a:p\neq 0.6

Probability of teens pass their drivers test on the first attempt = 60% = 0.60

Number of teens = 125

Number of them passed the tests on their first try = 86

\hat{p}=\dfrac{86}{125}=0.688

So, the value of test statistic would be

z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}\\\\z=\dfrac{0.688-0.60}{\sqrt{\dfrac{0.6\times 0.4}{125}}}\\\\z=\dfrac{0.088}{0.0438}\\\\z=2.009\\\\z\approx 2.01

At α = 0.05% level of significance, critical value = 1.645

Since 1.645 < 2.01

So, we will reject the null hypothesis.

Hence, there is convincing evidence at the  the significance level that the DMV's claim is incorrect.

7 0
3 years ago
Ill mark brainlist plss help
postnew [5]

Answer:

nonvascular plants

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
A storage container is in the shape of a rectangular prism. The container has a length of 10 feet, a width of 8 feet, and a heig
SVETLANKA909090 [29]

Answer:

592

Step-by-step explanation:

A=2(wl+hl+hw)

A=2(8*10+12*10+12*8)=592

8 0
3 years ago
The apothem of a regular polygon is always less than the radius of the polygon
den301095 [7]
That is false,  miss.  It IS the radius.
7 0
3 years ago
Please Help, 35 Points.
Andrei [34K]

To answer this question, we have the start-up costs of $ 52,000

A monthly inflation of $ 0 is assumed

Operating costs  are $680

The daily gain  is $960

For the Part A.

The inequality that this situation represents

 960d-680d>52000

So:

d(960-680)>52000

Where d represents the number of days.

For the Part B.

To start earning, you must replace all the initial investment and cover the expenses per day. The time that must pass for this to happen is obtained by clearing "d" from the inequality.


 d>\frac{52000}{960-680}

d> 185.71 days

Then, the sum of the net profits will be greater than the initial investment after 186 days of starting the business.

4 0
3 years ago
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