Answer:
Step-by-step explanation:
h(t) = -16t² + 14400
0= -16t² + 14400
(1/-16)×-14400=-16t²(1/-16)
900=t²

30=t
Answer: For 1 it is A - f(x)=(x-2)(x+4) and for 2 it is C - y = 0.5x^2 + 1.5x − 5
Step-by-step explanation:
Just use Desmos
Answer:
-8m + (-7.7n - 6)
Step-by-step explanation:
You distribute the negative in front of the parentheses, to everything inside of the parentheses, and change the sign to addition.
Answer:
infinite solutions
Step-by-step explanation:
Multiply the first equation by 2 so we don't have fractions.
x = 1/2y - 3 becomes 2x = y - 6
Now substitute the second equation into the y-value of the new equation
2x = (2x + 6) - 6
2x = 2x
x can equal anything. this means there are infinite solutions
Answer: 137 cans are left of cola.
Step-by-step explanation: First we want to find the total amount of cola Trey bought. Each pack contains 8 cans, so multiply 18 packs by 8 cans to find the total amount of cans he bought. 18 x 8 = 144 total cans of cola.
Since Trey drank 7 of the cans, simply subtract 7 from 144, 144 - 7 = 137 total cans of cola remaining.