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sesenic [268]
2 years ago
9

An art class is making paperweights out of plaster. They use a mold in the shape of a rectangular prism. (2 1/4m, 2 1/2m, and 1

3/4m represents the size of the prism)
How much plaster will it take to completely fill the mold?
Mathematics
2 answers:
Alecsey [184]2 years ago
6 0

Answer:

Step-by-step explanation:

djyliett [7]2 years ago
3 0
V=w•h•l
w=2 1/2=5/2=2.5 m
h=1 3/4=7/4=1.75 m
l= 2 1/4=9/4=2.25 m
V= 2.5 •1.75 •2.25
V=9.84 m^3
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1. Given f(x)=2x 2 +1 and g(x)=3x-5 find the following
LenKa [72]

The value of the function 1) f -g = 2x² - 3x + 6 and 2) f(g(2)) is 3.

Here the two functions are given, f(x) and g(x).

f(x) = 2x² + 1

g(x) = 3x - 5

We have to find f-g and f(g(2)).

1) f- g

f(x) - g(x)

(2x² + 1) - ( 3x - 5)

2x² + 1 - 3x + 5

2x² - 3x + 6

2) f(g(2))

f(g(x)) = 2(3x-5)² + 1

         = 2( 9x² - 30x + 25) + 1

         = 18x² - 60x + 50 + 1

         = 18x² - 60x + 51

f(g(2)) = 18(2)² - 60(2) + 51

          =18× 4 - 120 + 51

          = 72 - 120 + 51

          = 123 - 120

          = 3

Therefore the value of f-g is 2x²- 3x + 6 and the value of f(g(2)) is 3.

To know more about the function refer to the link given below:

brainly.com/question/11624077

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4 0
1 year ago
When 80% of a number is added to the number, the result is 216. What is the number?
azamat
80%x + x = 216
0.8x + x = 216
1.8x = 216
x = 216/1.8
x =  120

hope this help
8 0
3 years ago
Could anyone help me solve this?<br>2.5m + 10 = 1.6m - 6​
PilotLPTM [1.2K]

Answer:

m = 17.78.

Step-by-step explanation:

Given the algebraic expression;

2.5m + 10 = 1.6m - 6​

To find the value of m;

First of all, we would collect like terms.

2.5m - 1.6m = -6​ - 10

0.9m = -16

m = -16/0.9

m = 17.78

3 0
2 years ago
In kite ABCD, AC = 12, and CD = 16, what is ED?
anygoal [31]

Answer:

Step-by-step explanation:

EC = 12÷2 = 6

ED = √(CD² - EC²) = √(16² - 6²) = √220 = 2√55 ≅ 14.8 units

6 0
3 years ago
Using the distance formula find the distance between (-2,5) and (-2,1)
Vladimir79 [104]
I think the answer is 4
6 0
3 years ago
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