-2(9 - x - 7)
= -2(2 - x)
= -4 + 2x
Answer:
-4 + 2x
Answer:
i had the answer before ive done this before but i forgot
Answer:
the duration of this event is 4 hours
Step-by-step explanation:
This function is a quadratic one
let Δ be the dicriminant :
- a = -16
- b = 48
- c= 64
- Δ = 48²-4*(-16)*64 = 6400
so there are two values that satisfy -16t²+48t+64 = 0 x and y
- x= (-48+80)/-16*2 = -1
- y= (-48-80)/-16*2= 4
x<0 so w won't take it since time is a positive value here
so t = y = 4h
Answer:
∠x = 92°
Step-by-step explanation:
Supplementary means that the angles add up to 180°. Since one of them equals 88°, the other one or ∠x equals:

So, ∠x = 92°