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3 years ago

Suppose a politician sent out 860 surveys. Which of these numbers of

Mathematics

1 answer:

sladkih [1.3K]3 years ago

7 0

Answer:

860

Step-by-step explanation:

A non-response bias would mean that there are some non-response surveys, which will create a bias in the survey results. Because the survey didn't include information from those who are not responded.

If there will be 860 surveys back, this would prevent non-response bias

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Write the log equation as an exponential equation. You do not need to solve for x.

Archy [21]

the answer is - 1/4

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3 years ago

Find the pattern. What numbers come next?<br> 61, 54, 47, 40,

My name is Ann [436]

Answer:

Step-by-step explanation:

It's decreasing by 7

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2 years ago

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A teacher would like to estimate the mean number of steps students take during the school day. To do so, she selects a random sa

OleMash [197]

Answer:

It would decrease, but not necessarily by 8%

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2 years ago

Ares of a rectangular floor of your house is Ax+5x-2. if the length is x+2 units, find A

Snezhnost [94]

Answer:

A=4.

Step-by-step explanation:

Note: In the expression of area the first term should be $Ax^2$ .

It is given that area of a rectangular floor of your house is $Ax^2+5x-2$ and the length is $(x+2)$ units.

We know that, area of a rectangle is

$Area=length\times width$

Since length of the rectangle is $(x+2)$ , therefore $(x+2)$ is a factor of $Ax^2+5x-2$ and the value of $Ax^2+5x-2$ is 0 at x=-2.

$A(-2)^2+5(-2)-2=0$

$4A-10-2=0$

$4A-12=0$

$4A=12$

Divide both sides by 4.

$A=4$

Therefore, the value of A is 4.

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3 years ago

Stacy has 6 fewer than half as many marbles as Mallory .If Stacy has thirty marbles how many does Mallory have

vodomira [7]

Answer:

Step-by-step explanation:

Stacy has 30 marbles

Let m= the number of marbles that mallory has

stacy has 1/2 m -6

30 = 1/2 m -6

Add 6 to each side

30+6 = 1/2m

36 = 1/2m

Multiply each side by 2

72 = m

Mallory has 72 marbles

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3 years ago

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