The sum of the numbers is 20 10+10=20 20/2=10
Answer:
C
Step-by-step explanation:
related equation
-16t^2 + 32t + 20 = 0
-4t^2 + 8t + 5 = 0
Δ/4 = 16 + 20 = 36
t1 = (-4 + 6)/-4 = -1/2
t2 = (-4 - 6)/-4 = 5/2
-16(t+1/2)(t-5/2)
-16(2t+1/2)(2t-5/2)
-4(2t+1)(2t-5)
Answer:
v = 80 mph
Step-by-step explanation:
Given that,
The distance from Wakefield to London is 180 miles.
The train travels this distance in 2 hours 15 minutes.
We need to find the average speed of the train. The average speed of the train is equal to the total distance covered divided by the time taken.

So, the required average speed of the train is 80 mph.
Answer:
In standard index form a number is written firstly with a sign (if negative) followed ... by a power1 of 10. Powers of 10. Non-negative powers of 10. 100. 1. 101. 10.
Step-by-step explanation:i hope it helps