38 + 38 =78? i'm not sure cuz you had typo's.
Answer:
1-c
2-d
3-b
4-a
Step-by-step explanation:
The signs have been given except for multiplication.
2x^2-y
Plug in the values.
2(3)^2-(-2)
2(3)^2+2
Exponents first.
2*9+2
18+2
20
The answer is 20.
I hope this helps!
~kaikers
Answer:
22.8620689655
Step-by-step explanation:
Let's say the father does overtake the boy, the boy would have been travelling for 1 hour and 15 minutes at 8mph, therefor he would have travelled a total of 1.25*8 = 10 m
Now to reach the boy in 15 minutes the father must travel at a speed of 10/0.25 = 40 mph