3 years ago

PLEASE HELP MATH 11. And 12.

Mathematics

1 answer:

Serggg [28]3 years ago

6 0

i Don't know the answer is true or not..but i try my best

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Given the following functions:

Ivahew [28]

Answer:

Step-by-step explanation:

g(f(x)) = g(x²) = x²- 3

f(g(x)) = f(x-3) = (x-3)² = x²+ 6x + 9

7 0

2 years ago

You have just used the network planning model and found the critical path length is 30 days and the variance of the critical pat

joja [24]

Answer:

0.726 is the probability that the project will be completed in 33 days or less.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 30 days

Variance = 25 days

Standard Deviation,

$\sigma = \sqrt{\text{Variance}} = \sqrt{25} = 5$

We assume that the distribution of path length is a bell shaped distribution that is a normal distribution.

Formula:

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

P(completed in 33 days or less)

$P( x \leq 33) = P( z \leq \displaystyle\frac{33 - 30}{5}) = P(z \leq 0.6)$

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

$P(x \leq 33) = 0.726 = 72.6\%$

0.726 is the probability that the project will be completed in 33 days or less.

8 0

3 years ago

Deborah has two paintings in her portfolio and paints three more each week.Kai has twelve paintings in her portfolio and paints

elena-14-01-66 [18.8K]

Well, we can set up these equations like this-
Deborah- 2+3w
Kai- 12+2w
w=number of weeks that pass
Now, we set them equal to each other:
2+3w=12+2w

Solve for w
2-12=2w-3w
-10 = -1w
w = 10
10 weeks. Hope this helped!

4 0

3 years ago

Savannah gets paid at home for doing extra chores. Last week, she did 3 loads of laundry and 3 loads of dishes, and her parents

Fynjy0 [20]

Answer:

17$

Step-by-step explanation:

9+8=17$

7 0

2 years ago

It takes Winnie 26 minutes to type and spell check 14 pages of a manuscript. Find how long it takes her to type and spell check

Lyrx [107]

Step-by-step explanation:

Below is an attachment containing the solution.

4 0

3 years ago