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WITCHER [35]
3 years ago
15

Suppose a study estimated that 64% of the residents of a town (with an error range of +-12 percentage points at 95% confidence)

favor building a new community center. Which of the following percentages of the twonś residents may favor building a new community center?
A. 89%
B. 79%
C. 59%
D. 99%
Mathematics
1 answer:
Lostsunrise [7]3 years ago
7 0

Answer:

So the possible answer would be 59%

Step-by-step explanation:

A study estimated that 64% of the residents of a town (with an error range of +-12 percentage points at 95% confidence)  

In this question study gives a range 64 + or -12 it means they are not sure about answer but they estimated answer choice between 52 to 76

(64 - 12= 52 to 64 + 12 = 76).

I would figure out the lowest estimate and the highest estimate. and the answer would be between the two numbers.

In the choices there is only one number between 52 and 76. So the possible answer would be 59%.

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Question 2*
lilavasa [31]

Answer:

The average rate of change between these times is 68 miles per hour

Step-by-step explanation:

Here, we are to determine the average rate of change between hour 2 and hour 7

The distance traveled at hour 2 is 140 miles

The distance traveled at hour 7 is 480 miles

So we can say we have two points and we want to know the rate of change between these points

Mathematically, we can represent the rate of change as Δ

Thus, between the two different times, we have;

Δ = (D7-D2)/(T7-T2)

where (T7,D7) = (7,480) and (T2,D2) = (2,140) represents the time and distance at hour 2 and hour 7 respectively

Now inputing the values into the equation, we have;

Δ = (480-140)/(7-2) = 340/5 = 68 miles/hour

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3 years ago
80 girls and boys have planned for a movie. They are in a ratio of 6 girls to 2 boys. How many girls are there?
mina [271]
There are 60 girls 20 boys in this equation.
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3 years ago
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Determine a series of transformations that would map Figure E onto Figure F.
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Answer:

Step-by-step explanation:

8 0
2 years ago
What is the slope and the y-intercept of f(x)= -2x+6
murzikaleks [220]

Answer:

slope = - 2 and y- intercept = 6

Step-by-step explanation:

The equation of a line in slope- intercept form is

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8 0
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What is?<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%7D%7By%7D%20%20%2B%20x" id="TexFormula1" title=" \frac{x}{y} + x"
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Answer:

\frac{x+xy}{y}

Step-by-step explanation:

Given

\frac{x}{y} + x

Multiply x by \frac{y}{y} to create a common denominator

= \frac{x}{y} + x × \frac{y}{y}

= \frac{x}{y} + \frac{xy}{y}

= \frac{x+xy}{y}

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