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3 years ago

11

The surface area of a triangular prism is 112 square inches. What is the surface area of a similar prism with dimensions that ar

e half as great?

1 answer:

deff fn [24]3 years ago

5 0

66 square inches? I'm not sure.

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Line AB and CD have the following points: A(2, 4), B(9, 8), C(-1, 2), and D(3, -5). Are the lines parallel, perpendicular, or ne

inysia [295]

We are given coordinates of A, B, C and D :

A(2, 4), B(9, 8), C(-1, 2), and D(3, -5).

Now, we need to find the slopes of AB and CD.

Slope of AB is :

$\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(2,\:4\right),\:\left(x_2,\:y_2\right)=\left(9,\:8\right)$

$m=\frac{8-4}{9-2}$

$m=\frac{4}{7}$ .

Slope of CD is:

$m=\frac{-5-2}{3-\left(-1\right)}$

$m=-\frac{7}{4}$ .

<em>Slope of CD is negative reciprocal of slope of slope of AB. </em>

<h3>Therefore, lines AB are CD are perpendicular.</h3>

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Rqw-xeix-ogw<br>Girls come on

Olegator [25]

Answer:

no bro

Step-by-step explanation:

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At Southside Middle School, 20% of the students play an instrument. There are 305 students. How many students play an instrument

RoseWind [281]

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61 Students.

Step-by-step explanation:

So you need to find 20% of 305. You can do this by dividing by 5.

305 divided by 5 equals 61.

If you have questions, ask please :)

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A rectangular plot of grounds is 10 meters longer than it is wide. It’s area is 10,000 square meters. Which equation will help y

mote1985 [20]

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i'll say the second one

Step-by-step explanation:

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Write an expression that represents sarah's total pay last week. represent her hourly wage with

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3 years ago