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2 years ago

-4x+3y=12 intercept form

Mathematics

1 answer:

Alina [70]2 years ago

4 0

Y=4/3x+4 should be the answer.

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Instructions: Find the measure of the indicated angle to the nearest degree

Elanso [62]

Answer:

x = 60°

Step-by-step explanation:

let the missing angle be = x

Cos x = 8/16

x = Cos-¹ 0.5

x = 60°

5 0

3 years ago

Whats the √2×√13 step by step

Brrunno [24]

√2×√13
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3 years ago

Simplify 27- 9+(12-5)÷4 with solution

viktelen [127]

Answer:

It's 28 3/4

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Will mark u as BRAINLIEST plz help

ale4655 [162]

Answer:

Im not sure

Step-by-step explanation:

this is kinda hard

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3 years ago

A researcher surveyed 150 high school students and found that 68% played a musical insturment. What would be a reasonable range

maria [59]

Answer:

The reasonable range for the population mean is (61%, 75%).

Step-by-step explanation:

The interval estimate of a population parameter is an interval of values that consist of the values within which the true value of the parameter lies with a certain probability.

The mean of the sampling distribution of sample proportion is, $\hat p$ .

One of the best interval estimate of population proportion is the 95% confidence interval for proportion,

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

Given:

n = 150

$\hat p$ = 0.68

The critical value of z for 95% confidence level is:

$z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96$

Compute the 95% confidence interval for proportion as follows:

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

$=0.68\pm1.96\sqrt{\frac{0.68(1-0.68)}{150}}\\\\=0.68\pm 0.0747\\\\=(0.6053, 0.7547)\\\\\approx (0.61, 0.75)$

Thus, the reasonable range for the population mean is (61%, 75%).

5 0

3 years ago