Answer:
90 degrees
Step-by-step explanation:
I don't really have an explanation but I'm 100% sure that it is
Answer:
correct
Step-by-step explanation:
great job,
the 4b^4
8.03×10^10. move the decimal behind the eight and count the amount of places the decimal moved and that would be your power.
Answer:
im looking at B! hope this helps!
Step-by-step explanation:
Hello : let h =f(t)
<span>the ball hit the ground if : f(t) =0
solve : </span><span> -16t² + 20t + 6=0
</span><span>Δ = b²-4ac ... a = -16 b= 20 c =6
</span>Δ =(20)²-4(-16)(6) = 784 = 28²
t1 = (-20-28)/-32 = 48/32 =3/2
t2 =(-20+28) /-32 <span>< 0 refused
conclusion : t=3/2</span>
