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3 years ago

Hailey, Priya, and Shetal are auditioning for the same role. Hailey auditions

Mathematics

1 answer:

hram777 [196]3 years ago

8 0

Answer:

1st- Priya at 3:20

2nd- Hailey at 3:50

3rd- Shetal 3:55

Step-by-step explanation:

Hailey auditions at 10 minutes before four

so H = 3:50

Priya auditions 30 minutes before Hailey

so P = H-30 = 3:20

Shetal auditions at 5 minutes before four

so S = 3:55

the order is P, H and S

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Find surface area please

MArishka [77]

Answer:

203

Step-by-step explanation:

When calculating surface area, you add the area of each side.

Base: LxW = 7x7 = 49

Triangle Sides: 1/2 b x h = 1/2(7) x 11 = 38.5

4 sides: 38.5x4 = 154

154+49 = 203

3 0

3 years ago

What is the probability a sample of 90 test takers will provide a sample mean test score within 10 points of the population mean

Elena-2011 [213]

Answer:

0.658 is the probability that a sample 90 test takers will provide a sample mean test score within 10 points of the population mean of 502.

Step-by-step explanation:

The following information is missing:

The standard deviation of population is 100.

We are given the following information in the question:

Population mean, μ = 502

Standard Deviation, σ = 100

Sample size, n = 90

Standard error =

$\dfrac{\sigma}{\sqrt{n}} = \dfrac{100}{\sqrt{90}} = 10.54$

Formula:

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

P(test score within 10 points)

$P(492 \leq x \leq 512) \\\\= P(\displaystyle\frac{492 - 502}{10.54} \leq z \leq \displaystyle\frac{512-502}{10.54}) \\\\= P(-0.9487 \leq z \leq 0.9487)\\= P(z \leq 0.9487) - P(z < -0.9487)\\= 0.829 -0.171 = 0.658 = 65.8\%$

$P(492 \leq x \leq 512) = 65.8\%$

0.658 is the probability that a sample 90 test takers will provide a sample mean test score within 10 points of the population mean of 502.

7 0

3 years ago

On a grocery store shelf, there are 16 loaves of white bread and 24 loaves of wheat bread. A shopper randomly selects a loaf of

Oksanka [162]

Answer:

60%

Step-by-step explanation:

16 loaves of white bread and 24 loaves of wheat bread. = 40 loaves of bread

P( wheat) = number of wheat/ total

= 24/40

=.6

=60%

4 0

3 years ago

The basketball team is traveling 347 miles from Nashville, Tennessee to Columbus, Ohio for a national tournament. The team plans

Andrej [43]

I believe the answer is about 3:30 pm.

8 0

3 years ago

Which one of the following is considered a quantitative variable?

tatyana61 [14]

Okay so here's the definition of quantitative just in case you ever need it :) Categorical. Categorical variables take on values that are names or labels. The color of a ball (e.g., red, green, blue) or the breed of a dog (e.g., collie, shepherd, terrier) would be examples of categorical variables. And the answer would be A the color of your car because it talks about in the definition of the color of a ball so A would be the correct answer! Please mark brainliest :)

7 0

3 years ago