Answer:
20 units²
Step-by-step explanation:
The x-intercepts are symmetrically located around the x-coordinate of the vertex, so are at
1.5 ± 5/2 = {-1, 4}
Using one of these we can find the unknown parameter "a" in the parabola's equation (in vertex form) ...
0 = a(4 -1.5)² +12.5
0 = 6.25a +12.5 . . . . . simplify
0 = a +2 . . . . . . . . . . . divide by 6.25
-2 = a
Then the standard-form equation of the parabola is ...
y = -2(x -1.5)² +12.5 = -2(x² -3x +2.25) +12.5
y = -2x² +6x +8
This tells us the y-intercept is 8. Then the relevant triangle has a base of 5 units and a height of 8. Its area is given by the formula ...
A = (1/2)bh = (1/2)(5)(8) = 20 . . . . units²
All students in each grade
audience: <u>students</u> - counts for both boys and girls.
option (B) for teachers is irrevelant.
option (C) doesn't include girls.
option (D) doesn't include the entire school
Hence, option A is correct.
Answer:
4
Step-by-step explanation:
Answer: About 16.6% of the grapes get each child. 12.5 kilos each child
we do not know how many grapes exactly because we do not know how many grapes each kilo has.But we can say that each child get about 16.6% of the grapes
Step-by-
We do not know how many grapes exactly because we do not know how many grapes each kilo has.But we can say that each child get about 16.6% of the grapes
75:6= 12.5
75/100 = 12.5/x
75x = 1250
x =16.66666
12.5 is 16.66......% of 75
OOOH!I know the Answer it is A. 146 miles.And double OOOHHHH!!!!! I see your snapchat icon it looks sooooooooooooo cuteeeeeeeeeeeeeeeee!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!