$48
Here's how I found it ( just in case )
hi
-16t²+250 = 75
-16t² = 75 -250
-16t² = -175
t² = -175 /-16
t² = 175/16
Here there si two solutions : t =
and t = - ![\sqrt{175/16}](https://tex.z-dn.net/?f=%5Csqrt%7B175%2F16%7D)
However, as time cannot rewind, we will keep only positive solution
So t = ![\sqrt{175/16}](https://tex.z-dn.net/?f=%5Csqrt%7B175%2F16%7D)
in seconds it will be : 3.3 seconds
Answer:
103°
Step-by-step explanation:
The marked angles have the same measure, so ...
14x+7 = 12x +17
2x = 10 . . . . . subtract 12x+7
x = 5 . . . . . . . divide by 2
(14x +7)° = 77°
∠CEA is supplementary to the marked angles:
∠CEA = 180° -77°
∠CEA = 103°
Answer:
5
Step-by-step explanation:
The answer is 5
because 3 - 5 = -2
and -2 + 7 = 5
so the answer is 5
Option 3 or 4 would be your correct answer