Cylinder A has a radius of 7 inches and a height of 5 inches. Cylinder B has a volume of 490π. What is the percentage change in
volume from cylinder A to cylinder B?
50% decrease
75% increase
150% decrease
100% increase
2 answers:
Answer:
the answer is D
Step-by-step explanation:
Percentage change is 100% increase.
Step-by-step explanation:
- Step 1: Find volume of cylinder A using equation, V(A) = πr²h, where r = 7 in and h = 5 in
⇒ V(A) = π × 7 × 7 × 5 = 245π
and V(B) = 490π
- Step 2: Calculate percentage change from V(A) to V(B)
⇒ % change = [V(B) - V(A)/V(A)] × 100 = (490π - 245π/245π) × 100
= 245π/245π × 100 = 100% increase
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Perpendicular
Step-by-step explanation:
Perpendicular lines meet at a 90 degree angle.
300,000+90,000+5,000+40=395,040
395,040+10000=405,040
Answer:
The answer is 12 because 2x is just 8 and 2y is just 6 so add that and get 14 then subtract 2.
Step-by-step explanation:
40×4×4=640
b=20 h=4
using formula:
1/2×base×height
1/2×20×4=40
its says scale by factor 4:
b=80 h=16
using formula:
1/2×base×height
1/2×80×16=640
answer------>>>>640cm^2
