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AysviL [449]
4 years ago
6

From a phone survey, a researcher determined that the true estimate for the proportion of voters who will reelect the mayor is l

ikely to be in the interval (0.39, 0.47) .
What is the survey’s margin of error?

Enter your answer in the box.
Mathematics
1 answer:
pentagon [3]4 years ago
3 0
Here, p^ = (0.39 + 0.47)/2 = 0.43

The given interval is (0.43 - 0.04, 0.43 + 0.04).

Therefore, the margin of error is 0.04.
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Determine the slope of the line that has the points (-5, 8) and (-5, 3).
Anuta_ua [19.1K]

Answer:

Option D : Undefined

Step-by-step explanation:

Given points (-5,8) and (-5,3) lies on a line.

Slope of a line is given by:

m = \frac{y_2-y_1}{x_2-x_1}

m = \frac{3-8}{-5-(-5)}\\\\m=\frac{-5}{0}

Anything divided by zero is undefined.

Therefore,

Option D is the correct answer.

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3 years ago
How do u turn a fraction into a percent
Inessa [10]
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4 0
3 years ago
Read 2 more answers
F(x) = -2x + 5<br> f ( ) = 13
scZoUnD [109]

Answer:

Okay, I haven't done this a long time however I believe with this you have to solve the equation by doing substitution.

Step-by-step explanation:

so, if f (x) equals 13, you replace the x in the equation to 13.

f(x)=-2x+5

f(x)=-2(13)+5

f(x)=26+5

f(x)=31

I believe 41 would be your answer. Hope this is right and it helped!

4 0
4 years ago
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Andrews [41]
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5 0
3 years ago
A store sells grass seed in small bags and large bags. The small bags have 7 pounds of seed for $27.93 and the large bags have 2
Arada [10]

Answer:

The 20 pound bag is a better by for only $66.98

Step-by-step explanation:

The large bag is better because the small bag is $27.93 for 7 pounds 7x3=21,so 3x27.93=83.79 is $16.81 more than the cost for the large bag

hope this makes sense;)

5 0
3 years ago
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