(t2 - 8t - 7) - (t2 + 5t - 6)
=t2 - t2 - 8t - 5t - 7 + 6
= -13t-1
From the given triangle in the photo, the lengths of the sides are 3m and a, the hypotenuse is c. One angle, opposite of 3m is given to be 50 degrees C. The right equation that would solve c is,
sin (50 degrees C) = 3m / c
Thus, the answer is the first choice.
Answer:

Step-by-step explanation:
Answer:
The answer to your question is time = 20 min
Step-by-step explanation:
Data
Candace = 480 ft/min
time = 5 min
Brother = 660 ft/min
Process
1.- Calculate the distance traveled by Candace in 5 min
distance = speed xtime
= 480 x 5
= 2400 ft
2.- Write the equations to help solve the problem
Candace distance = 2400 + 480t
Brother distance = 600t
3.- Solve by equality
2400 + 480t = 600t
2400 = 600t - 480t
2400 = 120t
t = 2400/120
t = 20 min
4.- I will solve the equation given
480t = 660(t - 112112)
480t - 660t = -112112
-120t = -112112
t = -112112/-120
t = 934 h I think there is a mistake in the formula you
wrote.