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3 years ago

(3 · x ) · 7 what is the simplified answer to this question?

Mathematics

2 answers:

Leno4ka [110]3 years ago

8 0

Answer:

21x

Step-by-step explanation:

In the parentheses, 3 * x is the same thing as 3x. Distribute 7 into 3x to get 21x as your final answer.

fredd [130]3 years ago

6 0

Answer:

21x would be the answer

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What is the value of x? <br><br> __mm

andrezito [222]

Answer:

161.91

Step-by-step explanation:

First find the side length or YT by using the pythagorean theorem.

c= 129.2^2 = 16692.64

b= 68^2=4624

c-b = 12068.64

The square root of 12068.64 is approximately 109.86.

Using that length use the pythagorean theorem again and so:

a = 109.86^2 = 12068.64

c = 57^2 = 3249

a-c = 8819.64

The square root of 8819.64 is approximately 93.91.

So, 68 + 93.91 = 161.91

6 0

3 years ago

The daily sales at a convenience store produce a normal distribution with a mean of $1,250 and a standard deviation of $125. The

timama [110]

Answer:

0.6844 is the required probability.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = $1,250

Standard Deviation, σ = $125

We are given that the distribution of daily sales is a bell like shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find

P(sales less than $1,310)

$P( x < 1310) = P( z < \displaystyle\frac{1310 - 1250}{125}) = P(z < 0.48)$

Calculation the value from standard normal z table, we have,

$P(x < 1310) =0.6844= 68.44\%$

0.6844 is the probability that sales on a given day at this store are less than $1,310.

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ehidna [41]

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago

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