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3 years ago

$180 car 15% discount

Mathematics

2 answers:

Advocard [28]3 years ago

4 0

Answer: 27 dollars off so it would be 153$.

tatiyna3 years ago

3 0

Answer:

$153

Step-by-step explanation:

180 * 0.85 = 153

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3 years ago

Automobile mechanics conduct diagnostic tests on 150 new cars of a particular make and model to determine the extent to which th

Aleks04 [339]

Answer:

99% Confidence interval: (0.185,0.375)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 150

Number of cars that have faulty catalytic converters, x = 42

$\hat{p} = \dfrac{x}{n} = \dfrac{42}{150} = 0.28$

99% Confidence interval:

$\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.01} = \pm 2.58$

Putting the values, we get:

$0.28\pm 2.58(\sqrt{\frac{0.28(1-0.28)}{150}}) = 0.28\pm 0.095\\\\=(0.185,0.375)$

The 99% confidence interval for the true proportion of new cars with faulty catalytic converters is (0.185,0.375)

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3 years ago

Picture attached help!

tino4ka555 [31]

A and C
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3 years ago

If neil, weighing 150 pounds, jumps with an initial velocity of 8ft/sec, calculate his hang time on the earth as well as his han

sashaice [31]

we use the following formula to calculate height, 'h', under the effect of gravity:

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we treat mass as inconsequential to the problem, considering only the effect of initial velocity and gravitational pull

to find his 'hang time' we solve for h=0, knowing that t=0 will be the first value (before the jump):

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maximum height: approximately 2.4 feet

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3 years ago

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Answer: Its B (20 sq. units) <em>Unsure </em>

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3 years ago