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Anettt [7]
2 years ago
8

Dave is adding a new patio to the back of his house. The dimensions of the patio are shown below. If one bag of concrete mix wil

l cover 50 square feet, how many bags of concrete will he need?

Mathematics
1 answer:
valentinak56 [21]2 years ago
5 0

Answer:

4

Step-by-step explanation:

Multiply base times height for the area

Divide the area by 50

You cant have 3.888 bags so round up to get 4.

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When we rotate clockwise or counterclockwise, the two rotations should always add up to ( ) degrees
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360 degrees

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3 years ago
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What is 6(m + 4) =_m +_
Zielflug [23.3K]

Answer:

6m+24

Step-by-step explanation:

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5 0
3 years ago
What is the arc length of arc CD in the circle below?
lord [1]
The length of the arc intercepted by a central angle is the ratio of the angle to 360 degrees times the circumference. From the given values above,
                            S = (30° / 360°) x 2 x π x (6 ft)
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4 0
3 years ago
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Solve whether the equation have 1 solution no solution or infinity solution
babymother [125]
Steps to solving equations:
Simplify/combine the like terms
Isolate the variable (Get the variable on one side
Solve for the variable

-2y - 7 + 5y = 13 - 2y Simplify/Combine terms
3y -7 = 13 - 2y Isolate variable by adding 2y to both sides
5y - 7 = 13 Add 7 to both sides to get y alone on one side
5y = 20 Divide by 5 on both sides to solve for y
y = 4
You can check your answer by replacing y with 4 in the original equation.
5 0
3 years ago
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Complete the square for 3x^2-12x=9
larisa [96]

Answer:

The solutions are -0.65 and 4.65.

Step-by-step explanation:

3x^2 - 12x = 9

Divide both sides by 3

x^2 - 4x = 3

To make a square with "x^2 - 4x", you need to have a "+ 4" after it so it can be simplified as (x-2)^2.  So add 4 to both sides.

x^2 - 4x + 4 = 7

(x-2)^2 = 7

x - 2 = (square root) of 7

x = 2 (+/-) (square root) of 7.

x = {-0.65, 4.65}

The solutions are -0.65 and 4.65.

hope this helps:)sorry if it doesnt

8 0
3 years ago
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