Answer:
50
Step-by-step explanation:
Answer:
It would be the first option.
f(x) = -2 |x| + 1
X is the answer and one half is part of the answer
Answer:


Step-by-step explanation:
we are given
speed =8 mph
time = 6 hours
so, we have

now, we can find distance
distance = (speed)*(time)


so, we have

so, our range for x and y can be


Answer:
18°
Step-by-step explanation:
The law of cosines tells you ...
a² = b² + c² -2bc·cos(A)
Solve for cos(A) and fill in the numbers. Note that the value of cos(A) is very close to 1, so the angle will be fairly small. This by itself can steer you to the correct answer.
cos(A) = (b² +c² -a²)/(2bc) = (49 +100 -16)/(2·7·10) = 133/140
A = arccos(133/140) ≈ 18.2° ≈ 18°