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N76 [4]
3 years ago
13

5. What is the degree of the sum of these two polynomials? (5x3 - 2x2 + 1) + (2x2 - 6x4-5) A. 2 B.3 6.4 D.5​

Mathematics
1 answer:
hichkok12 [17]3 years ago
4 0

Answer:

14

Step-by-step explanation:

(5x3-2x2+1) + (2x2-6x4-5)

(15-2x2+1) + (4-6x4-5)

(13x2+1) + (-2x4-5)

(26+1) + (-8-5)

27 + -13

14

Hope this helps... I was confused on the question about the decimals this is the best I can do... Have a nice day though! ☺️

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For an intramural sports program at a particular college, the time to run one mile is recorded for 200 male students in the prog
Greeley [361]

Answer:

Devon has the lower z-score, so he ran the mile faster relative to his gender.

Step-by-step explanation:

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.

Who ran the mile faster relative to their gender?

The lower the percentile of time ran, the faster. So whoever has the lower z-score ran the mile faster.

Devon

His best time to run the mile is 6.6 minutes.

These times are approximately normal with mean 8 minutes and standard deviation 1 minute.

We have to find Z when X = 6.6, \mu = 8, \sigma = 1. So

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

Z = \frac{6.6 - 8}{1}

Z = -1.4

Kendall

Her best time to run the mile is 5.7 minutes.

These times are approximately normal with mean 7.5 minutes and standard deviation 2 minutes.

We have to find Z when X = 5.7, \mu = 7.5, \sigma = 2. So

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

Z = \frac{5.7 - 7.5}{2}

Z = -0.9

Devon has the lower z-score, so he ran the mile faster relative to his gender.

3 0
3 years ago
Look at the sample space below.
Jobisdone [24]

Answer:

There are 10 odd numbers: {1, 3, 5, 7, 9, 11, 13, 15, 17, 19} There are 4 factors of 8: {1, 2, 4, 8} There is 1 number in both lists: {1} Probability of an odd or a factor of 8 = (10 + 4 - 1)/20 = 13/20

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3 years ago
Hay you over there
Luden [163]

never going to left you go

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Simplify:<br> ((6-3) + (5+5) / 2 =
mihalych1998 [28]
The answer for this math equation is 8.
8 0
3 years ago
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klemol [59]
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