Answer:
f^(-1)(x)=(x-7)/3
Step-by-step explanation:
f(x) = 3x+7
(f(x)-7) = 3x
f^(-1)(x)=(x-7)/3
Answer:
3 hours
Step-by-step explanation:
Since the speed is remaining the same, time is proportional to distance, so you have ...
1.75 hours/(70 miles) = (additional hours)/(120 miles)
Multiply by 120 to find the additional hours:
additional hours = (120/70)·(1.75 hours) = 3 hours
_____
Units of miles cancel from numerator and denominator of (120 miles)/(70 miles).
Answer:
Trapezium:
perimeter= 232
area= 2052
Triangle:
perimeter= 221
area= 4088
Step-by-step explanation:
D because if it says -3 that means the opposite so go right because it is also horizontal and + means up so go up because it is vertical.