Answer:
The answer is (d)
Exponential decay function
Step-by-step explanation:
∵ y = 0.8^x
∵ 0.8 < 1
∴ 0.8^x is decreasing ⇒ exponential decay function
Ex: 0.8^-4 = 2.441 ⇒ 0.8^4 = 0.4096
when x increase the value of 0.8^x decrease
∴ The answer is (d)
Answer:
The volume of a cylinder equals
PI * radius^2 * height
Volume = PI * 2^2 * 21
Volume = 3.14159 * 4 * 21
Volume = 3.14159 * 4 * 21
equals 263.89 cubic feet
Step-by-step explanation:
Answer:
Step-by-step explanation:
x = speed of the boat
y = speed of the current
x + y = 162/3 = 54 mph
x - y = 132/3 = 44 mph
Add the two equations to get
2x = 98
x = 49 mph
y = 54 - x = 54 - 49 = 5 mph or something
Ah, looks like a special right triangle to me, just got done learning about these.
Alright, so, since this is a 30-60-90 triangle, 6 is the smallest leg (as across from 30 degree is the smallest leg), labeled as s. Across from the 90 is 12, as that is 2s.
The missing side, across from the sixty, would be 6 square root of 3 (fourth answer).
