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Slav-nsk [51]
2 years ago
7

Plz help I don’t understand this question:)

Mathematics
1 answer:
dem82 [27]2 years ago
6 0

Answer:

A

Step-by-step explanation:

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A concrete block has a cy
geniusboy [140]
To solve this problem, we will subtract the volume of the cylinder from the volume of the rectangular prism.

The volume of a cylinder is: pi*r^2*h
Substitute 2 in for r and 6 in for h. If the diameter is 4, then the radius is 2.
pi*2^2*6
pi*4*6
pi*24
=75.4 ft^2

The volume of the rectangular prism is: l*w*h.
Substitute 6 in for l, w and h, since all edges are equal.
6*6*6
36*6
=216 ft^2

Subtract 75.4 from 216
216-75.4=140.6

There is 140.6 cubic feet of concrete left in the block.
3 0
3 years ago
What is the length of side PQ?
Margaret [11]
64; Line pq is correspondent with line ab and triangle PQR is 4 time as big as triangle ABC.
4 0
3 years ago
Read 2 more answers
A piece of paper can be made into a cylinder in two ways : by joining the short sides together, or by joining the long sides tog
julia-pushkina [17]
They hold the same amount i think
3 0
3 years ago
The second of two numbers is 4 less than twice the first. Their sum is 80.Find the numbers
Otrada [13]
The first number is x
the second number is 2x-4
combine both numbers = 80
x+2x-4=80
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one number is 28 and the other is 52.
4 0
3 years ago
Look at pic below please show work : )
Sindrei [870]

Answer:

91.1 cubic inches to 1 dp

Step-by-step explanation:

4.5 X 4.5 X 4.5 = 91.125 cubic inches

or

4.5^3 = 91.125 cubic inches

7 0
3 years ago
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