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Alexandra [31]
3 years ago
5

3 over 50 as a decimal

Mathematics
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
7 0
4 years ago
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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}}}

8 0
3 years ago
Solve each inequality 3(x-2)&gt;-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 !
4 0
4 years ago
ANSWER THE BOTTOM QUESTION PLEASE
MrMuchimi

Answer:

p70 is the point of the bottom lines

7 0
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
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