What is the surface area of a rectangular prism that measures 12 meters by 11 meters by 9 meters

Mathematics

1 answer:

stich3 [128]3 years ago

7 0

1188 meters cubed is the answer

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Marcial found a recipe for fruit salad that he wanted to try to make for his birthday party. He decided to triple the recipe. a.

Oksanka [162]

Convert 3 (1/2) into a mixed fraction first and then multiply it by 3:

3(1/2) * 3

(7/2) * 3

21/2

10 (1/2) = answer

5 0

3 years ago

Factor the expression.

grigory [225]

Hey!

First, let's write the problem,
$4r^2-64$
Factor out the common term, which is 4,
$=4\left(r^2-16\right)$
Then, let's factor this part: $r^2-16$
We are going to factor it using the difference of squares rule.
$=\left(r+4\right)\left(r-4\right)$
Our final factored answer would be,
$=4\left(r+4\right)\left(r-4\right)$

Thanks!
-TetraFish

8 0

3 years ago

Read 2 more answers

Complete the equation of the line through (4,-8)(4,−8)left parenthesis, 4, comma, minu

In-s [12.5K]

Equation of a line is in the form y = mx+c, where m is the gradient and c is the y-intercept.

First step is to find the gradient.

m = (y2-y1)/(x2-x1)
= ( 5- -8)/(8-4) = 13/4

We have y = (13/4)x + c

Now we replace one of the coordinates to find c. Let’s replace (4,-8)

We have: -8 = (13/4)*4 + c

-8=13+c
c=-8-13= -21

Therefore, equation of line is:

y = (13/4)x - 21

3 0

3 years ago

What is the answer someone help meeee

Varvara68 [4.7K]

Answer:

1) 8n-3

2) 3+(8-n)

3) 3(n-8)

4) 3(n+8)

6 0

3 years ago

Can anyone help me find the value pls?

Flauer [41]

The inside angle for B, which is labeled x is the same as the outside angle of D which is labeled as 72, so we know x = 72.

In a parallelogram two angles next to each other equal 180, so angle A and angle B equal 180.

We know B = 72, so A = 180-72 = 108

Angle A is divided in 2 by angle y, so y = 108/2 = 54

Answers: x = 72

Y = 54

4 0

3 years ago