What are the correct answers to this geometry problem?

Mathematics

1 answer:

Masja [62]2 years ago

8 0

https ://www. you tube.com/chan nel/UCRg4zCv6 o93Nxiidwv kQnoA

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Each gallon of paint covers 400 square feet. i have to paint one side of a wall that is 8 meters tall and 40 meters long. if a f

tresset_1 [31]

1. You have that:

- Each gallon of paint covers 400 ft².
- One side of a wall must be painted and its dimensions are :is 8 meters tall and 40 meters long.

1 ft=0.3048 m
1 ft²=(0.3048 m)²=0.09290 m²

2. Each gallon of paint covers 400 ft², then:

400 ft²x0.09290=37.16 m²

3. The area of one side of the wall is:

A=8 mx40 m
A=320 m²

4. Therefore, you have:

1 gallon-----37.16 m²
x-----320 m²

x=320x1/37.16
x=8.61 gallons
x≈9 gallons

The answer is: 9 gallons

6 0

3 years ago

One side of a square flower bed is 16 feet long. How many plants are needed if they are to be spaced 16 inches apart around the

svetoff [14.1K]

Convert the 16 feet to inches by multiplying 16 by 12 to get 192 inches, then divide that by 16 inches to get your answer that is equal to 12. Hope I could help!

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2 years ago

Can someone help me, I don't need to see how u did it just make sure it is correct.

ladessa [460]

Y = - 4x^2 - 3x + 3 This thing is complex with fractions. I have to work it out.
y = -4(x^2 + 3/4 x) + 3
y = -4(x^2 + 3/4 x + (3/8)^2 ) + 3
y = -4(x + 3/8)^2 +3 + 4*(9/64)
y = -4(x + 3/8)^2 + 3 + 9/16
y = -4(x + 3/8)^2 + 3 9/16 Equation in Vertex form. <<<<< answer
y = -4(x + 0.385) + 3.5625 Equation in Vertex form. <<<< answer
One is in decimal form. One in fraction form.

the vertex (-3/8, 3 9/16) or alternately
the vertex (-0.375,3.5625)

You might want the graph to confirm my answer.