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ololo11 [35]
2 years ago
15

Answer All 4 question to get brainley and must be correct.

Mathematics
1 answer:
MakcuM [25]2 years ago
8 0

Answer:

C B A D

Step-by-step explanation:

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7.) Jessica took her parents out to dinner. The total
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what is an equation of the line that is parallel to the line with y=-.60x+2 and passes through the point (10,-10)
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y = -0.60x - 4

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3 years ago
Evaluate the expression when x = 8 and y = 1.
Rzqust [24]
The answer should be 4.

First, simplify \frac{8}{2} to 4. Your problem should look like: 4 x 1. 
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3 years ago
A can in the shape of a right circular cylinder is required to have a volume of 500 cubic centimeters. The top and bottom are ma
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Answer:

The answer to the question is

The total cost C of the material as a function of the radius r of the cylinder is

0.6912·r² + 800/r Dollars.

Step-by-step explanation:

To solve the question, we note that

The area of the top and bottom combined  = 2·π·r²

The area of the sides = 2·π·r·h

and the volume = πr²h = 500 cm²

Therefore height = 500/(πr²)

Substituting the value of h into the area of the side we have

Area of the side = 2πr·500/(πr²) = 1000/r

Therefore total area of can = Area of top + Area of bottom + Area of side

Whereby the cost of the can = 0.11×Area of top +0.11×Area of bottom +0.8×Area of side

Which is equal to

0.11×2×π×r²+ 0.8×1000/r = 0.6912·r² + 800/r

The cost of the can is $(0.6912·r² + 800/r)

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3 years ago
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