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2 years ago

A survey of 4000 Americans found that 80% agreed with the president on a certain issue. identify the population

Mathematics

2 answers:

elena55 [62]2 years ago

5 0

3200. 4000 * .80 = 3200. That is the population of 80% of 4000 Americans.

anastassius [24]2 years ago

4 0

80% of 4000 is 3200, so 800 disagreed, and 3200 agreed.

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Which of the following is a geometric sequence?

Savatey [412]

You need to find which one is in order

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3 years ago

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A school had a girl:boy ratio 5.4.

Ilya [14]

Answer:

164

The 982 part seems wrong. Are you sure it isn't 981?

around 436 if I use 981 instead. 982 would give a decimal and that would be kinda weird for a part human.

Step-by-step explanation:

You can divide the 205 by 5 to simplify the ratio down. 205/5 = 41. Then you can multiply by 4 to find then number of boys.

981

So you can add the 5 and 4 together to 9 and then divide 981 by 9 to get 109. Then you can multiply by 4 to get 436.

Hope this helps!

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2 years ago

I need help with number 5

Tju [1.3M]

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Simply set the 2 equations equal to each other (both are congruent due to perpendicular bisector):

6x + 3 = 3x = 6

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7 0

3 years ago

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Use the Rational Zeros Theorem to write a list of all possible rational zeros of the function.

marishachu [46]

Answer:

$\text{Possible rational zeros}=\pm1,\pm\frac{1}{2},\pm2,\pm3,\pm\frac{3}{2},\pm6,\pm9,\pm\frac{9}{2},\pm18$

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We have been given the function

$f(x)=-2x^2+4x^3+3x^2+18$

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$\text{Possible rational zeros}=\pm\frac{\text{Factors of constant term}}{\text{Factors of leading coefficient}}$

From the given function,

Leading coefficient = 2

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Constant term = 18

Factors of constant term = 1, 2, 3, 6, 9, 18

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$\text{Possible rational zeros}=\pm\frac{1,2,3,6,9,18}{1,2}\\\\\text{Possible rational zeros}=\pm1,\pm\frac{1}{2},\pm2,\pm3,\pm\frac{3}{2},\pm6,\pm9,\pm\frac{9}{2},\pm18$

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3 years ago

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ElenaW [278]

.5
The graph would be bell shaped. So the odds are 50/50

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3 years ago