Answer:
C. tan 48° = 16.3 / x
Step-by-step explanation:
With reference angle A
Tan A = BC / AC
Tan 48° = 16.3 / x
Hope it helps
Let y be the temperature
Let m be the rate of temperature drop in degrees per hour
Let x be the number of hours elapsed since 8PM
The initial temperature (at x = 0) is 0
y = mx
Four hours from 8 PM, the temperature was -16.8 degrees
-16.8 = m(4)
m = -4.2 degrees per hour
At 9PM, one hour will have elapsed.
y = -4.2(1)
y = -4.2 degrees
Answer:
x = 40
Step-by-step explanation:
Answer:B the cost would be $11
Step-by-step explanation:
