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Rashid [163]
2 years ago
9

Help help help help math math

Mathematics
1 answer:
damaskus [11]2 years ago
6 0

Step-by-step explanation:

Relation

Hope it correct!!!

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Question 2 (1 point
damaskus [11]

Answer:

banana

Step-by-step explanation:

5 0
3 years ago
Suppose that the travel time from your home to your office is normallydistributed with mean 40 minutes and standard deviation 7
Alex73 [517]

Answer:

The latest time that you should leave home is 12:08 PM

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score 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. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 40, \sigma = 7

If you want tobe 95 percent certain that you will not be late for an office appointment at 1 P.M.,what is the latest time that you should leave home?

How many minutes is the 95th percentile of travel time?

it is X when Z has a pvalue of 0.95. So it is X when Z = 1.645. So

Z = \frac{X - \mu}{\sigma}

1.645 = \frac{X - 40}{7}

X - 40 = 7*1.645

X = 51.6

Rouding up, the 95th percentile for travel time is 52 minutes.

52 minutes before 1PM is 12:08 PM.

The latest time that you should leave home is 12:08 PM

7 0
3 years ago
What type of angle is this?
Vinil7 [7]

Answer:

Step-by-step explanation:

The angle is acute because it is less han 90 degrees, so the answer is D

6 0
3 years ago
I need help ??? I don't understand it I have problem with math a lot I need this done by spring break
Romashka-Z-Leto [24]
You have to make a proportion with a part whole and percent the whole is the money amount the part is the amount of people the percent is well the percent<span />
5 0
3 years ago
What are the possible rational zeros of f(x) = x4 + 6x3 − 3x2 + 17x − 15? (2 points)
Alex73 [517]
Solve for x. The multiplicity of a root is the number of times the root appears.

x= -6.847415 (multiplicity of 1)
x= 0.793705 (multiplicity of 1)
8 0
3 years ago
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