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3 years ago

8

9. If the road surface or visibility is compromised in any way, such as by traffic congestion or bad weather, you must _________

___. A. drive at the posted speed limit B. adjust your speed C. use cruise control D. stop and wait until the weather improves

1 answer:

aivan3 [116]3 years ago

4 0

B. Adjust your speed

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The distribution of number of hours worked by volunteers last year at a large hospital is approximately normal with mean 80 and

Mazyrski [523]

Explanation:

Using the normal distribution, it is found that the probability that the volunteer selected will receive a certificate of merit given that the number of hours the volunteer worked is less than 90 is closest to:

B 0.123

In a normal distribution with mean \muμ and standard deviation \sigmaσ , the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}Z=σX−μ

It measures how many standard deviations the measure is from the mean.

After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.

In this problem:

The mean is of 80, hence \mu = 80μ=80 .

The standard deviation is of 7, hence \sigma = 7σ=7 .

The minimum value is the 80th percentile, which means that it is X_mXm when Z has a p-value of 0.8.

The probability that the volunteer selected will receive a certificate of merit given that the number of hours the volunteer worked is less than 90 is P(X_m < X < 90)P(Xm<X<90) , which is the p-value of Z when X = 90 subtracted by the p-value of Z when X = X_mX=Xm , hence the p-value of Z when X = 90 subtracted by 0.8.

Z = \frac{X - \mu}{\sigma}Z=σX−μ

Z = \frac{90 - 80}{7}Z=790−80

Z = 1.43Z=1.43

Z = 1.43Z=1.43 has a p-value of 0.9236.

0.9236 - 0.8 = 0.1236, hence closest to 0.123, option B.

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3 years ago

Which statement best describes the difference between these two passages? A) One passage is written in simple straight-forward l

Klio2033 [76]

Answer:

B

Explanation:

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3 years ago

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How many btus are needed to cool lucia’s apartment? 19,600 btus 19,800 btus 20,400 btus 24,000 btus

Sedaia [141]

The number of btus that are needed to cool lucia’s apartment is 20,400 btus.

<h3>BTUs needed</h3>

First step

Left side=12×10×20

Left side=2400 cubic feet

Middle =16×10×(20-9)

Middle =16×10×11

Middle =1,760 cubic feet

Right side=20×10×20

Right side= 4000 cubic feet

Second step

BTUs:

BTUs=(2400+1760+4000)×2.5

BTUs=8160×2.5

BTUs=20,400 Btus

Therefore the number of btus that are needed to cool lucia’s apartment is 20,400 btus.

Learn more about btus here:brainly.com/question/4260087

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2 years ago

Compared to union soldiers, most confederate soldiers in the civil war were well equipped. poorly equipped. wealthy landowners.

SpyIntel [72]

Compared to union soldiers, most confederate soldiers in the civil war were poorly equipped.

<h3>What does poorly equipped implies?</h3>

The term means that when people are said to not have the right or best experience or preparation that is often needed to cather for the responsibility.

Therefore, Compared to union soldiers, most confederate soldiers in the civil war were poorly equipped as they lack a lot of war materials or equipment.

Learn more about soldiers from

brainly.com/question/17738380

#SPJ1

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2 years ago

What modern technology was originally inspired by leonardo da vinci? diving suits eyeglasses microscopes telescopes

Ad libitum [116K]

Answer: sorry this is a late response but the answer is (A) diving suits

I hope it helps :)

Explanation: I took the test

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2 years ago

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