Ince we're looking for "h," or the height at 0, we then set the equation to 0, and solve for t. We will then have:
O= -16t^2+64t+80
-16.(0)= 16(t^2-4t-5)
 ------> factoring out the GCF, -16
0= t^2-4t-5
That will make -16=-16
Therefore,
0 = (t - 5)(t + 1)
Therefore, t = 5, or -1, but t = - 1 is ignored
This means that the object will hit the ground 5.0 seconds after being thrown in the air.
The answer is (C): 5.0 seconds
So
eq=ellen's quarters
en=ellens's nickles
lq=lola's quarters
ln=lola's nickles
lq/2=eq or lq=2(eq)
2(ln)=en or ln=en/2
en+eq=$6.30 or 630 cents
en+6nickles=eq
so nickle=5 so
5*6=30
630-30=600
number of nicles=number of quarters of lola=600
nickle+quater=30
600/30=20
20 quarters
20+6=26 nickles
elen has 20 quarters and 26 nickles
20 times 2=40 quarters
26 divided by 2=13 nickles
lola has 40 quarters and 13 nickles
40 times 25=1000 cents in quarters
13 times 5=65 cents in nickles
1000+65=1065 cents or $10.65=lola's money
Answer:
Fraction 3/8 or Decimal 0.375