Answer:
A.2304
B.5625
C.6776
Step-by-step explanation:
The easiest way to show you is by using calculator. If you can't, try using Khan Academy if you want.
Answer: sqrt(5)
Explanation:
sqrt(5) is the rationalizing factor of -6sqrt(5) because -6sqrt(5) • sqrt(5) = -6 • 5 so now there is no longer any square root.
Answer:
Step-by-step explanation:
Lucy's friend makes up for Lucy's 20-mile head start at the rate of 10 miles per hour. Lucy's friend will catch up with Lucy after (20 mi)/(10 mi/h) = 2 hours.
Answer:
A:C = 9:20
Step-by-step explanation:
The ratio of the surface area of similar solid is equal to the square of the ratio of their corresponding linear measures. If the ratio of their corresponding linear measures is a:b, the surface area ratio will be (a/b)². Therefore,
(A/B )² = 9/16
square root both sides
A/B = √9/√16
A/B = 3/4
A:B = 3:4
The ratio of volume of two similar solid is the ratio cube of their corresponding linear measures. Therefore,
(B/C)³ = 27/125
cube root both sides
B/C = 3/5
B:C = 3:5
To make the ratio equivalent
A:B:C = 9:12:20
A:C = 9:20
