3 years ago

Help plz will mark brainliest!

Mathematics

1 answer:

gizmo_the_mogwai [7]3 years ago

3 0

Answer:

94 cm^2

Step-by-step explanation:

The surface area of a rectangular prism can be found using:

A=2(wl+hl+hw)

We know the width is 3, the height is 5, and the length is 4. We can substitute 3 in for w, 5 in for h, and 4 in for l.

A=2((3*4)+(5*4)+(5*3))

Multiply 3 and 4

A=2(12+(5*4)+(5*3))

Multiply 5 and 4

A=2(12+20+(5*3))

Multiply 5 and 3

A=2(12+20+15)

Add 12 and 20 and 15

A=2(47)

Multiply 2 and 47

A=94

So, the the surface area is 94 cm^2

You might be interested in

John bought 18 pizzas. Mitchel bought 12 pizzas. What percent of the total number of pizzas Mitchel buy?

mina [271]

Answer: 40%

Step-by-step explanation: The total number of pizzas is 12 + 18 = 30. Mitchel bought 12 of those 30 pizzas. To find the percentage you do the portion/total. Thus 12/30 = 0.4, as a proportion. To turn a proportion into a percentage simply multiply by 100. 0.4 * 100 = 40%

7 0

3 years ago

Is the following relation a function? {(3, 2), (3, −2), (1, −4), (−1, 2)}

Ksivusya [100]

Step-by-step explanation:

no it is not because if 3 maps on 2, then it cannot map on -2 at the same time

8 0

3 years ago

Please give me an explanation <br> 1/6(6+18)-2²=0<br> the 1/6 is a fraction

Hatshy [7]

Step-by-step explanation:

you multiply 1/6 to each number in the brackets

7 0

3 years ago

The coefficient in the expression −x3 7−x3 7 is __.

fredd [130]

I'm perty sure it's -1

8 0

3 years ago

Vivi is a drummer for a band. She burns 756756756 calories while drumming for 333 hours. She burns the same number of calories e

Blizzard [7]

Answer:

its 252 calories per hour

Step-by-step explanation:

I divided 756 by 3 to find the answer

3 0

3 years ago