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Helga [31]
3 years ago
7

Can someone help me with this I do not know if that's the answer

Mathematics
2 answers:
olga_2 [115]3 years ago
8 0
D.) The first step is to multiply by 10. You're right!!
goldfiish [28.3K]3 years ago
8 0
You are right ❤️❤️❤️❤️
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Please help due tonight !
Travka [436]

Answer: (14 , 15/2)

Step-by-step explanation:

...

8 0
3 years ago
Read 2 more answers
48. Reading Rates The reading speed of sixth-grade students is approximately normal, with a mean speed of 125 words per minute a
son4ous [18]

Answer:

The reading speed of a sixth-grader whose reading speed is at the 90th percentile is 155.72 words 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 = 125, \sigma = 24

What is the reading speed of a sixth-grader whose reading speed is at the 90th percentile

This is the value of X when Z has a pvalue of 0.9. So it is X when Z = 1.28.

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

1.28 = \frac{X - 125}{24}

X - 125 = 1.28*24

X = 155.72

The reading speed of a sixth-grader whose reading speed is at the 90th percentile is 155.72 words per minute.

4 0
3 years ago
Read 2 more answers
Which choice shows how to find the least common multiple of 9
Len [333]
Circled numbers are prime factors comment if you need me to clarify anything

4 0
2 years ago
The graph below shows the cost of pens based on the number of pens in a pack. What would be the cost of one pen? A graph is show
Pepsi [2]
The answer is 1.75 dollars for one

Please Give Me Brainliest Answer :D
8 0
3 years ago
Read 2 more answers
Using f(x) = 8x + 5 and g(x) = 7x - 2, find:g(f(6))
iren2701 [21]

Answer:

369

Step-by-step explanation:

g(f(x)) simply means to put the whole expression of function f(x) into the place of "x" in g(x).

and to find the functional value for a specific x we just need to calculate functional value for f(x) and use that result as input for g(x).

f(6) = 8×6 + 5 = 48 + 5 = 53

and now

g(53) = 7×53 - 2 = 371 - 2 = 369

to check we do the general functional substitution :

g(f(x)) = 7×(8x+5) - 2 = 56x + 35 - 2 = 56x + 33

g(f(6)) = 56×6 + 33 = 336 + 33 = 369

correct

5 0
3 years ago
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