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3 years ago

ALG II NEED HELP QUICK! Will mark the brainliest answer

Mathematics

1 answer:

lbvjy [14]3 years ago

4 0

I think it’s the second one because The formula would be
x=
2a
−b±
b
2
−4ac

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? Explain idk what that means

Korvikt [17]

7 people, 7 walls, 48 minutes

Each person paints 1 wall in 48 minutes

20 persons, 20 walls

Each can paint 1 wall in 48 minutes so it will

take 48 minutes.

5 0

4 years ago

Area of a kite!!!!!!!!!!!!!!!

Ulleksa [173]

Find the area of each triangle then and them together, so:

1/2(15×8) =60

plus

1/2(15×8) =60

plus

1/2(23×8)=92

plus

1/2(23×8)=92

60+60+92+92=304

304 is the total area.

7 0

4 years ago

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Bayview middle school wants to change their school mascot. they came up with with 5 mascot names and surveyed a group of random

iogann1982 [59]

76.6% so rounded up would be 77% as an a fraction 46/60

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3 years ago

a picture has painted 75% of a wall the area so far is 108 square feet what is the total area of the wall that he needs to paint

Kipish [7]

Answer:

27 more

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

The proportion of left handed people in the population is about 0.10. Suppose a random sample of 300 people is observed. (a) Wha

pantera1 [17]

Answer: $(\hat{p})\sim N(0.10,\ 0.017)$

Step-by-step explanation:

Sampling distribution of the sample proportion $(\hat{p})$ :

$(\hat{p})\sim N(p,\ \sqrt{\dfrac{p(1-p)}{n}})$

The sampling distribution of the sample proportion $(\hat{p})$ has mean = $\mu_{\hat{p}}=p$ and standard deviation = $\sigma_{\hat{p}}=\sqrt{\dfrac{p(1-p)}{n}}$ .

Given : The proportion of left handed people in the population is about 0.10.

i.e. p=0.10

sample size : n= 300

Then , the sampling distribution of the sample proportion $(\hat{p})$ will be :-

$(\hat{p})\sim N(0.10,\ \sqrt{\dfrac{0.10(1-0.10)}{300}})$

$(\hat{p})\sim N(0.10,\ \sqrt{0.0003})$

$(\hat{p})\sim N(0.10,\ 0.017)$ (approx)

Hence, the sampling distribution of the sample proportion $(\hat{p})$ is $(\hat{p})\sim N(0.10,\ 0.017)$

8 0

3 years ago