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Tom [10]
3 years ago
15

Need help with this one ​

Mathematics
1 answer:
noname [10]3 years ago
6 0

Answer:

<em>f(g(x)) = </em>\frac{x}{7}<em> ; g(f(x)) = 7x - 30</em>

Step-by-step explanation:

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The answer is 12 because you divide 204 by 17 to get what x is
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As part of a promotion for a new type of cracker, free trial samples are offered to shoppers in a local supermarket. The probabi
Veronika [31]

Answer:

The probability that fewer than 30 buy a packet after tasting a free sample is approximately

B. 0.9938

Step-by-step explanation:

We have

p = 0.2

q = 1 - 0.2 = 0.8

n = 100

and we need to compute P(X<30). First we need to check if normal distribution can be used or not. If np>5 then we can use normal distribution to solve this problem.

np = 100*0.2 = 20 > 5.

So we can use the normal approximation to solve this problem.

μ = np = 20

σ = √(npq)

  = √(100)(0.2)(0.8)

σ = 4

We know that z = (X - μ)/σ, So

P(X<30) = P[(X-μ)/σ < (30 - μ)/σ]

              = P(z<(30-20)/4)

              = P(z < 10/4)

              = P (z<2.5)

Using the normal distribution probability table, we get:

P(z<2.5) = 0.9938

<u>So, the correct option is </u><u>B. 0.9938</u>

6 0
3 years ago
18,932,612 – 9,096,089 =
alina1380 [7]

Answer:

9836523

is the answer. just check

4 0
3 years ago
Someone know how to do this?: 6x2+18x=0
Crazy boy [7]
The answer to the question is: Yes.

Explanation:  It can be solved by following exactly the same procedures
that solved the other two questions that you posted within the past 15 minutes.

Since I'm here already, here is the solution to this one:

6x² + 18x = 0

Divide each side of the equation by 6 :

x² + 3x = 0

Factor the left side:

x(x+ 3) = 0

This statement is true if x=0 or if x=3.

The solution to this one is even the same as the solution to the last one you posted.
You really ought to take a break, go back, review the solutions you've been given,
and try to solve a few on your own.
4 0
3 years ago
Name a unit of measurement that is about the same size of the weight or mass of 20 staples.
saul85 [17]

Answer:

D

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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