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fenix001 [56]
2 years ago
12

Please Help! I will give brainliest!

Mathematics
1 answer:
sdas [7]2 years ago
7 0

Answer:

D

Step-by-step explanation:

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What is the value of p so that the expession 6x+3-(8x-5) is equivalent to (px+8)?​
kiruha [24]

Answer:

-2

Step-by-step explanation:

The first equation simplifies to -2x+8 so p should be replaced with -2

4 0
3 years ago
Simplify 2 √3 times 3 √15<br> Also simplify 3 √5 times √5 <br> Please help
stira [4]

answer one would be 18 square root of 5

and the second would be 4 square root of 5

Step-by-step explanation:

6 0
3 years ago
Assume that females have pulse rates that are normally distributed with a mean of u = 75.0 beats per minute and a standard devia
Elan Coil [88]

Answer:

36.88% probability that her pulse rate is between 69 beats per minute and 81 beats per minute.

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 = 75, \sigma = 12.5

Find the probability that her pulse rate is between 69 beats per minute and 81 beats per minute.

This is the pvalue of Z when X = 81 subtracted by the pvalue of Z when X = 69.

X = 81

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

Z = \frac{81 - 75}{12.5}

Z = 0.48

Z = 0.48 has a pvalue of 0.6844

X = 69

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

Z = \frac{69 - 75}{12.5}

Z = -0.48

Z = -0.48 has a pvalue of 0.3156

0.6844 - 0.3156 = 0.3688

36.88% probability that her pulse rate is between 69 beats per minute and 81 beats per minute.

3 0
3 years ago
Read 2 more answers
WHAT IS THE RECIPROCAL OF 5/8 WHOLE NUMBER OR FRACTION?
Alexxandr [17]
A reciprocal is just when you flip over the numerator and the denominator.
So, if you have 5/8, then its opposite, or reciprocal will be 8/5. It is also a fraction, as is 5/8.
You can write it as a mixed number, as the person above me mentioned, as 1 3/5. 
5 0
3 years ago
Read 2 more answers
Which statement describes the image?
boyakko [2]

Answer:

d.) none are correct

Step-by-step explanation:

it should be reflection over the y-axis then reflection over the x-axis

3 0
3 years ago
Read 2 more answers
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