What are the first six multiples of 9

Mathematics

2 answers:

mojhsa [17]4 years ago

4 0

9,18,27,36,45,54........This is because you would multiply 9 by 1, then 2, then 3 and so on. I hope this helps!

xxTIMURxx [149]4 years ago

3 0

9 , 18 , 27 , 36 , 45 , 54. You just multiply 9 with 1 , 2 , 3 , 4 , 5 , 6. and so on hope this helps

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If f(x)= -2x+8 and g(x)= x+7, what is (f0g)(2)

Maslowich

(f0g) = -2(x+7)+8
(f0g) = -2x-14+8
(f0g) = -2x-6

(f0g)(2) = -2(2)-6 = -4-6 = -10
(f0g)(2) = -10

hope this helps!

4 0

3 years ago

The points obtained by students of a class in a test are normally distributed with a mean of 60 points and a standard deviation

Paraphin [41]

Answer:

0.13% of students have scored less than 45 points

Step-by-step explanation:

Problems of normally distributed samples can be 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:

$\mu = 60, \sigma = 5$