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3 years ago

PLEASE HELP/ WILL MARK BRAINLIEST Find the surface area of the triangular prism.

Mathematics

2 answers:

crimeas [40]3 years ago

6 0

Answer:

Triangular prism 1: 132

Triangular prism 2: 828

Step-by-step explanation:

1) triangle+triangle+rectangle+rectangle+rectangle

A of triangle=3*4 divided by 2

12/2= 6

since there are 2 triangles we do 6*2= 12

A of rectangle 1= 10*5= 50

A of rectangle 2= 10*4= 40

A of rectangle 3= 10*3= 30

so SA of whole figure is 12+50+40+30= 132

2) triangle+triangle+rectangle+rectangle+rectangle

A of triangle=9*12 divided by 2

108/2=54

since there are 2 triangles we do 54*2=108

A of rectangle 1= 9*20=180

A of rectangle 2= 15*20=300

A of rectangle 3= 12*20= 240

so SA of whole figure is 108+180+300+240=828

Please mark brainliest :)

Thank you

densk [106]3 years ago

3 0

THE FIRST TRIANGLE ANSWER IS 135
THE SECOND TRIANGLE ANSWER IS 20

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fi500The volume of this sphere is3 cubic inches. What is its radius?call the formula Sphere V4rrO 3 inchesO 5 inchesO 166.7 inch

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$V=\dfrac{4}{3}\pi R^3\\\\V=\dfrac{500\pi}{3}\ in^3;\ R=?\\\\subtitute\\\\\dfrac{4}{3}\pi R^3=\dfrac{500}{3}\pi\ \ \ |divide\ both\ sides\ by\ \pi\\\\\dfrac{4}{3}R^3=\dfrac{500}{3}\ \ \ |multiply\ both\ sides\ by\ 3\\\\4R^3=500\ \ \ \ |divide\ both\ sides\ by\ 4\\\\R^3=125\to R=\sqrt[3]{125}\\\\\boxed{R=5\ (in)}$

5 0

3 years ago

Read 2 more answers

A survey questioned 1000 people regarding raising the legal drinking age from 18 to 21. Of the 540 who favored raising the age,

Maslowich

Answer:

If a person selected at random from this group is a man, there is a 31.25% probability that the person favors raising the drinking age.

Step-by-step explanation:

We have these following informations:

There are 1000 people in total.

540 favored raising the age. Of them 390 were female, and 540-390 = 150 were male.

460 were opposed. Of them, 130 were female and 460-130 = 330 were males.

If a person selected at random from this group is a man, what is the probability that the person favors raising the drinking age?

There are 150+330 = 480 males. Of them, 150 favors raising the drinking age.

$P = \frac{150}{480} = 0.3125$

If a person selected at random from this group is a man, there is a 31.25% probability that the person favors raising the drinking age.

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4 years ago

Is it possible to divide 15 by a mixed number and get a quotient that is greater than 15? Explain.

shutvik [7]

Mixed numbers are greater than one it wouldn't make sense for a mixed number to be less than one, because then it would just be a regular fraction.

<span>You can only get a bigger number if you divide by a number less than one. That means you can't divide 15 by a mixed number and get a bigger number.</span>

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3 years ago

What is the correct expansion of (2x+3) (2x^2-5)

Dmitry_Shevchenko [17]

Answer:

4x^3 + 6x^2 -10x - 15

Step-by-step explanation:

* means multiply

4x^3 + 6x^2 -10x - 15

2x * 2x^2 = 4x^3

2x * -5 = 10x

3 * 2x^2 = 6x^2

3 * -5 = -15

7 0

3 years ago

Read 2 more answers

For a population with µ = 100 and σ = 20, what is the X value corresponding to z = -0.75?

Savatey [412]

The X value corresponding to z = -0.75 will be 85. Then the correct option is A.

<h3>What is the z-score?</h3>

The z-score is a statistical evaluation of a value's correlation to the mean of a collection of values, expressed in terms of standard deviation.

The z-score is given as

z = (x - μ) / σ

Where μ is the mean, σ is the standard deviation, and x is the sample.

For a population with µ = 100 and σ = 20.

Then the X value corresponding to z = -0.75 will be

-0.75 = (x - 100) / 20

-15 = x - 100

x = 85

Then the correct option is A.

More about the z-score link is given below.

brainly.com/question/15016913

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5 0

2 years ago