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1 year ago

What is the answer to this question?

Mathematics

1 answer:

AleksAgata [21]1 year ago

6 0

Answer:

acute and iscoles

Step-by-step explanation:

acute is >90

its not right or obtuse so its acute. so its either scalene on iscoloses

scalene is 3 unequal sides but as you can see it has 2 sides that are equal so it cant be scalene. Therefore its iscolese

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wariber [46]

Answer:

I don't know if i'm right but I think it's b.

Step-by-step explanation:

I am so sorry if I am wrong.

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2 years ago

SHOW WORK 10 POINTS!

Anarel [89]

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Step-by-step explanation:

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2 years ago

Divide and simplify your answer 2 1/2 divided by 3 3/4

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Answer:

2/3

Step-by-step explanation:

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3 years ago

What times what gives me 234 and what plus what gives me 31

shusha [124]

Answer:

2*127=234

30+1

29+2

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26+5

25+6

24+7

23+8

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Step-by-step explanation:

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3 0

3 years ago

The estimate of the population proportion should be within plus or minus 0.02, with a 90% level of confidence. The best estimate

Rudiy27

Answer:

The sample size required is 910.

Step-by-step explanation:

The confidence interval for population proportion is:

$CI=\hat p\pm z_{ \alpha /2}\sqrt{\frac{\hat p(1-\hat p)}{n} }$

The margin of error is:

$MOE=z_{ \alpha /2}\sqrt{\frac{\hat p(1-\hat p)}{n} }$

Given:

$\hat p = 0.16\\MOE= 0.02\\Confidence\ level =0.90$

The critical value of z for 90% confidence level is:

$z_{\alpha /2}=z_{0.10/2}=z_{0.05}=1.645$ *Use a standard normal table.

Compute the sample size required as follows:

$MOE=z_{ \alpha /2}\sqrt{\frac{\hat p(1-\hat p)}{n} }\\0.02=1.645\times \sqrt{\frac{0.16(1-0.16)}{n} }\\n=\frac{(1.645)^{2}\times 0.16\times (1-0.16)}{(0.02)^{2}} \\=909.2244\\\approx910$

Thus, the sample size required is 910.

5 0

3 years ago