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murzikaleks [220]
4 years ago
13

Kaylee found the surface area, in square inches of a rectangular prism by using formula. 2(5×3)+2(5×8)+2(3×8) What is the surfac

e area of the prism, in square inches?

Mathematics
1 answer:
sladkih [1.3K]4 years ago
6 0

Answer:

158

Step-by-step explanation:

Simplify the following:

2×5×3 + 2×5×8 + 2×3×8

5×3 = 15:

2×15 + 2×5×8 + 2×3×8

5×8 = 40:

2×15 + 2×40 + 2×3×8

3×8 = 24:

2×15 + 2×40 + 2×24

2×15 = 30:

30 + 2×40 + 2×24

2×40 = 80:

30 + 80 + 2×24

2×24 = 48:

30 + 80 + 48

| 8 | 0

| 4 | 8

+ | 3 | 0

1 | 5 | 8:

Answer:  158

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Solve the system of equations. y = x2 + 7x - 5 y = 2x + 9
marissa [1.9K]

Answer:

(2, 13)

(-7, -5)

Step-by-step explanation:

Easiest and fastest way to do this is to graph the systems of equations and analyze the graph where the 2 graphs intersects.

6 0
3 years ago
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kvasek [131]

Answer:

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Step-by-step explanation:

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Simplify each of the following<br>4.1.1 13a2 - 3b - 21a2 + 76​
Nataliya [291]

Answer:

−8a2−3b+76

Step-by-step explanation:

=13a2+−3b+−21a2+76

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=13a2+−3b+−21a2+76

=(13a2+−21a2)+(−3b)+(76)

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3 years ago
A regular polygon with an interior angle sum of 9000°? If so, what is it?
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3 years ago
Need 13&amp;14!! ASAP, will put Brainliest
UNO [17]

Answer:

13- A 14-B

Step-by-step explanation:

You take the formula (x1+x2/2, y1+y2/2) and plug in accordingly. For instance, when you plug the values in for 13, you would get:

x1+-9/2, y1+7/2= -8,2

All you have to do from there is a simple guess and check or plug in each number from the multiple answer choices you have. You should then get A (-7,-3) Do the same with 14, in which you should get B (11,-20)

Sorry for taking so long to answer but hope this kind of helps.

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