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Jobisdone [24]
3 years ago
9

How to find the surface area of a prism

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
5 0

Answer:

If you are talking about the rectangular prism the equation is  

2 × L × W + 2 × L × H + 2 × W × H

If you are talking about Triangular prism the equation is

B × H + L × S + L × B + L × C

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After a car is purchased, the value of a new car decreases $4000 each year. After 3 years, the car is worth $18000.
Over [174]
Original - 4000x 

<span>so, after 3 years we have: </span>

<span>Original - 12000 = 18000 </span>

<span>=> Original = $30,000 </span>
6 0
3 years ago
The ratio of the measure of two supplementary angles is 15:21. What is the measure of the smallest angle?
anyanavicka [17]

Answer:

75

Step-by-step explanation:

The measure of two supplementary angles =  15:21

The angles are  15x , 21x

15x + 21x = 180       {Supplementary}

         36x = 180

             x = 180/36

             x = 5

Smallest angle = 15 * 5 = 75

3 0
3 years ago
If a = b and b = c, which statement must be true?
shepuryov [24]

a=c because the transitive property states so.

4 0
3 years ago
I never really understood what this was could u help
ycow [4]

Answer:

1. f(4) or f(n)= 28

2. f(-2) or f(n)= -2

(please consider marking brainliest <3 )

Step-by-step explanation:

n=4                           n=-2

f(n)= 5(n)+8              f(n)= 5(n)+8

f(n)= 5(4)+8              f(n)= 5(-2)+8

(n)= 20+8                 f(n)= -10+8

f(n)=28                      f(n)=-2

5 0
3 years ago
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krok68 [10]

Answer:

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Step-by-step explanation:

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