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3 years ago

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3 over 50 as a decimal

1 answer:

Artemon [7]3 years ago

8 0

3 over 50

= 3/50 Multiply top and bottom by 2

= (3/50)*(2/2) = 6/100

= 0.06

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Jeremy cleans his house in 2 1/2 hours.hunter cleans his house in 3 1/4 hours.how much longer does it take for Jeremy to clean h

Lyrx [107]

Well 3 1/4 is 3.25 and 2 1/2 is 2.50 and that subtracted is 0.75

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4 years ago

Read 2 more answers

Enter an equation in standard form for the line.<br> Slope is -4, and (-9, -12) is on the line.

AfilCa [17]

Answer:

$4x + y +48=0$

Step-by-step explanation:

We are here given the slope of the line and one point through which it passes . The slope of the line is -4 and the point is (-9,-12) .

Here we can use the point slope form of the line as ,

$\sf\longrightarrow y-y_1 = m(x-x_1)$

Substitute the respective values ,

$\sf\longrightarrow y - (-12) = -4\{ x -(-9)\}$

Simplify LHS and RHS ,

$\sf\longrightarrow y + 12 = -4( x +9)$

Open the brackets in RHS ,

$\sf\longrightarrow y + 12 = -4x -36$

Add 36 and 4x to both sides ,

$\sf\longrightarrow \underline{\boxed{\orange{\sf 4x + y + 48 =0}}}$

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3 years ago

Solve each inequality 3(x-2)>-3

Dafna1 [17]

3(x-2)>-3 means 3x-6>-3 so now add 6 for the both sides and it will be 3x>3 now div by 3 so the answer is x>1 .. I hope that would help ya !

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4 years ago

ANSWER THE BOTTOM QUESTION PLEASE

MrMuchimi

Answer:

p70 is the point of the bottom lines

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3 years ago

A random sample of 400 Michigan State University (MSU) students were surveyed recently to determine an estimate for the proporti

Gre4nikov [31]

Answer:

a. .92

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

The margin of error of the interval is:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

The lower bound is the point estimate $\pi$ subtracted by the margin of error.

The upper bound is the point estimate $\pi$ added to the margin of error.

Point estimate:

The confidence interval is symmetric, so it is the mean between the two bounds.

In this problem:

$\pi = \frac{0.372 + 0.458}{2} = 0.415$

Sample of 400, which means that $n = 400$

Margin of error is the estimate subtracted by the lower bound. So $M = 0.415 - 0.372 = 0.043$

We have to find z.

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

$0.043 = z\sqrt{\frac{0.415*0.585}{400}}$

$z = \frac{0.043\sqrt{400}}{\sqrt{0.415*0.585}}$

$z = 1.745$

$z = 1.745$ has a pvalue of 0.96.

This means that:

$1 - \frac{\alpha}{2} = 0.96$

$\frac{\alpha}{2} = 1 - 0.96$

$\frac{\alpha}{2} = 0.04$

$\alpha = 0.08$

Confidence level:

$1 - \alpha = 1 - 0.08 = 0.92$

So the correct answer is:

a. .92

7 0

3 years ago