Answer:
Step-by-step explanation:
Given
Required
The cost for x months
Represent this cost with y.
So:
Answer:
a=21.1
Step-by-step explanation:
You can use the given (incorrect) equation and fill in the value of t to find h:
h = 12.5 +9sin(750(3.5)) = 3.68 . . . . feet
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Or, you can use the correct equation, or just your knowledge of revolutions:
h = 12.5 +9sin(750(2π·3.5)) = 12.5 . . . . feet
in 3.5 minutes at 750 revolutions per minute, the propeller makes 2625 full revolutions, so is back where it started — at 12.5 feet above the ground.
Let "a", "b" and "с" be sides of the triangle ("с" is the longest side). The triangle will be:
right if a² + b² = c²
аcute if a² + b² > c²
obtuse if a² + b² < c²
We have a=32.18, b=40 and c=53.02
a² + b² = 32.18² + 40² = 1035.5524 + 1600 = 2635.5524
and
c² = 53.02² = 2811.1204
2635.5524 < 2811.1204 ⇒ obtuse triangle
Answer:
f (x)
[tex] \ frac [7] [4] \ time 2x [\tex]
then f (1/7) = 1/2
Answer: $48
Step-by-step explanation:
12x4=48