Answer:
(4x × 5)² or (4x × 5) (4x × 5)
Step-by-step explanation:
FOIL- first outer inner last
4x times 4x = 16x²
4x times 5 equals 20x, 4x times 5 again is 20x
combine the two terms and get 40x
5 times 5 is 25
so 16x²+40x+25
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The volume would be 452ft because the formula to work out the volume of a cylinder is height times pi times radius squared.
So you put the mixed number into an improper fraction
Ex:
1 6/12
12 times 1 plus six is 18
18/12 minus 1/3 is 14/12
Answer:
15. 2
16. 
or 1.6875
17. 
or 0.5666666667
18. 5
19. 
or 4.375
20. 
or 4.4
Step-by-step explanation:
Find common denominators. Multiply then simplify (if possible).
