Answer:
19
Step-by-step explanation:
-8+8=0
0+19=19
Hope it helps.
Answer:
b
Step-by-step explanation:
In a 30-60-90 right triangle, the hypotenuse is twice the length of the short leg.
The hypotenuse is AB and is 18.
The short leg is BC and is 9.
The only choice with BC = 9 is b.
Answer: b
Your question doesn't sound complete...the algebraic expression should equal something but this is what I ended up with 9(x+3)
1 meter = 1/1000 km
1 second = 1/3600 Hour
1m/s = (1/1000)/(1/3600)
1m/s = (1/1000) x (3600/1) = 18/5 = 3.6
so 1 m/s is equivalent to 3.6 km/h
And 60 m/s = 60 x 3.6 = 216 km/h
