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irinina [24]
3 years ago
7

A set of equations is given below:

Mathematics
1 answer:
Novay_Z [31]3 years ago
8 0

These would have infinite solutions because this is a slope-intercept equation. Since you are provided with the y-intercept in both, you can put anything in for the slope and it will work.

Hope this helps!

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The average height of 20-year-old American women is normally distributed with a mean of 64 inches and standard deviation of 4 in
Murrr4er [49]

Answer:

Probability that average height would be shorter than 63 inches = 0.30854 .

Step-by-step explanation:

We are given that the average height of 20-year-old American women is normally distributed with a mean of 64 inches and standard deviation of 4 inches.

Also, a random sample of 4 women from this population is taken and their average height is computed.

Let X bar = Average height

The z score probability distribution for average height is given by;

                Z = \frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } } ~ N(0,1)

where, \mu = population mean = 64 inches

           \sigma = standard deviation = 4 inches

           n = sample of women = 4

So, Probability that average height would be shorter than 63 inches is given by = P(X bar < 63 inches)

P(X bar < 63) = P( \frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } } < \frac{63-64}{\frac{4}{\sqrt{4} } } ) = P(Z < -0.5) = 1 - P(Z <= 0.5)

                                                        = 1 - 0.69146 = 0.30854

Hence, it is 30.85%  likely that average height would be shorter than 63 inches.

7 0
3 years ago
Harry decides he wants to save money. He already has 5 USD in his savings account and decides he will add 3.500USD per week.
enot [183]

Answer:

S = 3.500t

11 weeks, because in 11 weeks he will have saved up 38.500, + the 5 he has saved equals 43.500.

Step-by-step explanation:

4 0
2 years ago
I need help..What’s the answer
RSB [31]

Answer:

D. 3,750

Step-by-step explanation:

Use proportions to solve:

125/500 = x/15000

Cross multiply:

125*15000 = 1,875,000

1,875,000/500 = 3,750

x = 3,750

6 0
3 years ago
PLSSS HELPPP PLSSSS HELPPPP PLSSSS HELPPPPPP!!!!!!!!!!
sattari [20]

Answer:

5 x + 3 = 23

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
The surface area of a cube that is 8 yards of width and length?
Umnica [9.8K]

Answer:

<h2>384 yd²</h2>

Step-by-step explanation:

The formula of a surface area of a cube:

SA = 6a^2

We have <em>a = 8 yd</em>.

Substitute:

SA=6(8^2)=6(64)=384\ yd^2

8 0
3 years ago
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