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3 years ago

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According to the research, 43% of homes sold in a certain month and year were purchased by first-time buyers. A random sample

of 165 people who just purchased homes is selected. Complete parts a through e below. what is the probabilty that less than 75 of them are first time buyers

1 answer:

vovangra [49]3 years ago

4 0

Answer Do it

Step-by-step explanation 165 divided by 100 =x times 43

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Three lines of crops in a garden form a triangular shape. Strawberries are planted in a 10 ft line and green beans are planted i

Marat540 [252]

Answer:

$p = 19.18$

Step-by-step explanation:

This question is illustrated using the attachment and will be solved using cosine formula

$a^2 = b^2 + c^2 - 2bcCosA$

<em>Let the strawberry side be s, the Green beans be b and the pumpkins be p.</em>

<em />

The cosine formula in this case is:

$g^2 = s^2 + p^2 - 2spCosG$

Where

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The equation becomes

$18^2 = 10^2 + p^2 - 2 * 10 * p * Cos\ 68$

$324 = 100 + p^2 - 20 * p * 0.375$

$324 = 100 + p^2 - 7.5p$

Collect Like Terms

$p^2 - 7.5p + 100 - 324 = 0$

$p^2 - 7.5p - 224 = 0$

Using quadratic formula:

$p = \frac{-b\±\sqrt{b^2-4ac}}{2a}$

Where

$a = 1$

$b = -7.5$

$c = -224$

$p = \frac{-(-7.5)\±\sqrt{(-7.5)^2-4*1*-224}}{2*1}$

$p = \frac{7.5\±\sqrt{56.25+896}}{2}$

$p = \frac{7.5\±\sqrt{952.25}}{2}$

$p = \frac{7.5\± 30.86}{2}$

$p = \frac{7.5 + 30.86}{2}$ or $p = \frac{7.5 - 30.86}{2}$

$p = \frac{38.36}{2}$ or $p = \frac{-23.36}{2}$

$p = 19.18$ or $p = -11.68$

But length can not be negative.

So:

$p = 19.18$

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2 years ago

What is the slope of the line segment AB? (5 points) A.2 B.−2 C.−1 over 2 D.1 over 2

Katen [24]

The slope should be one over two.

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3 years ago

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olga2289 [7]

Answer:

-4.4c +1.1

Step-by-step explanation:

-5.8c + 1.4c = -4.4c

4.2 + (-3.1) = 1.1

-4.4c + 1.1

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3 years ago

10. what is the volume of the prism to the nearest whole unit?

Ainat [17]

To calculate the volume of the rectangular prism and the triangular prism you will multiply the area of the base by the height of the prism.

1. V = BH
V = lwH
12 x 8 x 4
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3 years ago

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Can somebody help me find the slope of this problem ??

andreev551 [17]

Answer:

The slope is 3/4

Please correct me if I am wrong please and thank you

Step-by-step explanation:

I use the slope formula $\frac{y2-y1}{x2-x1}$

Plug in (2,1) and (-2,-2)

1-(-2)/2-2

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2 years ago

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