Answer:
see below
Step-by-step explanation:
h=−4.9t^2 +39.2t
When will if fall back to the ground
When will h=0
0 =−4.9t^2 +39.2t
Factor out a -t
0 = -t (4.9t -39.2)
Using the zero product property
-t =0 4.9t - 39.2 =0
t =0 4.9t = 39.2
t =39.2 /4.9
t =8
It will reach the ground again at 8 seconds
The maximum height is halfway between the zeros
(0+8)/2 = 4
It will reach the max height at 4 seconds, substituting this in to find the max height
h=−4.9 (4)^2 +39.2(4)
h = 78.4 meters
This will only be applicable between t=0 and t=8 seconds
0≤t≤8 seconds
Subtract 35 from both sides in order to eliminate it from the left, then multply both sides by 5 in order to solve for x.
This is how you solve this problem:
.10d + .05n = 5.25
(plug in the number of dimes we have)
(21 x .1) + .05n = 5.25
(multiply number of dimes x value of the dime)
2.10 + .05n = 5.25
(subtract 2.10 from both sides)
.05n = 3.15
(divide both sides by .05 to get the number of nickels)
n = 63 nickels
Hope this helps!
EXPLANATION
If receive 15% of a profit, and considering a total profit of $600, the amount is given by the expression:
Profit = 15% of 600
We must turn 15% into a decimal form by dividing it by 100 as follows:
15/100 = 0.15
So, the computed value is:
Profit = 0.15 x 600 = $90
The answer is $90.
Answer:
Oliver walked 3 miles in 2 hours and he walked 24 miles in 16 hours.
Step-by-step explanation:
Divide 9 by 6 and you'll get 1.5. 1.5 goes into 3 two times, so the first answer is 2 and then do 16 times 1.5 and you'll get 24.
Hope this helps.
Please give brainliest.