Answer:
89
Step-by-step explanation:
92 = (90 + 98 + 96+ 94 + 85 + x )/6
92*6 = 90 + 98 + 96+ 94 + 85 + x
552 - (90 + 98 + 96+ 94 + 85) = x
x = 89
Answer:
a. 1,2 maximum is vertex of the parabola
40 divided by -2/5 equals -4
so -2/5 x -4 equals 40
answer: -4
If you would like to solve the equation above, you can do it this way:
1/3 * h - 4 * (2/3 * h - 3) = 2 - 3 * h - 6
1/3 * h - 8/3 * h + 12 = -4 - 3 * h
-7/3 * h + 3 * h = -4 - 12
-7/3 * h + 9/3 * h = -16
2/3 * h = -16
h = -16*3/2
h = -24
The result is -24.