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Vlad [161]
3 years ago
13

Which expression has a value of 18?

Mathematics
1 answer:
Anarel [89]3 years ago
5 0
I can't see the expressions
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Keep getting this wrong please help!!!
photoshop1234 [79]

Answer:

14.13 in³

Step-by-step explanation:

Volume of a ball (sphere) is:

V = ⁴/₃ π r³

Circumference of a ball (circle) is:

C = 2π r

Use the circumference to find the radius.

9.42 in = 2π r

r = 1.50 in

Use the radius to find the volume:

V = ⁴/₃ π (1.50 in)³

V = 14.13 in³

4 0
3 years ago
In a rectangle, the perimeter is 102 inches. The width of the rectangle is 9 inch more than half the
Harrizon [31]

perimeter = 2width + 2 length

102 = 2(x+9) + 2x

102 = 2x + 18 +2x

102 = 4x +18

84 = 4x

21 = x

Length = x = 21 inches

Width = x + 9 = 21 + 9 = 30 inches

7 0
3 years ago
A photograph 5 inches wide by 6 inches high is to be enlarged so that the new height is 20 inches. what will the width of the en
Vika [28.1K]
The new width is 16.6666666667 inches, which can be rounded to 16.7. 

Width:     5           ?
Height:    6          20

We know that based on the information provided, the new height is 20 inches.

So, in order to solve, you can cross multiply (5 x 20), which would be 100. Then

divide by 6, to get 16.6666666667 or 16.7.
7 0
3 years ago
Direction:simplify -2y - -4y
Alexxandr [17]

It should just be 2y. Hope it helps.



5 0
3 years ago
Read 2 more answers
How many square yards of cement are needed to create the walkway around the rectangular pool?
pentagon [3]

Answer:

176

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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