Answer:
7 seconds, 6 seconds
Step-by-step explanation:
a) For the object to reach the ground, the height from the ground has to be 0. therefore, let the function h = 0
0 = -16t^2 + 700
the amswers are + or - 6.61
we cant have negative time so it is approximately 7 seconds.
b) for the object to reach a 100 feet, h =100
100 = -16t^2 + 700
0 = -16t^2 + 600
solve: + or - 6.12
therefore it takes approximately 6 seconds to reach 100 feet.
Answer:
14 cows
46 turkeys
Step-by-step explanation:
If all the animals were turkeys, there would be 120 legs. There are 28 more than that. Replacing a turkey with a cow adds 2 legs, so there must be 14 such replacements.
There are 14 cows and 46 turkeys.
_____
Check
14×4 + 46×2 = 56 + 92 = 148 . . . . legs
14 + 46 = 60 . . . . . . heads
Answer: 2(x-7)
Step-by-step explanation: 2x−14
2x−14
=2(x−7)
Answer:
225
Step-by-step explanation:
(17+8)*(14-3)=25*9=225