Answer:
2%
Step-by-step explanation:
Answer:
second option
Step-by-step explanation:
x - y= 28
x+y = 56
As long as you're asking for help, you may as well ask a graphing calculator that can actually tell you the answer.
Solutions are (x, y) = (-6, 312) and (6, 312).
_____
Divide the second equation by 2, then substitute the expression for y into the first equation. Solve the quadratic for x.
.. 10x^2 -(8x^2 +24) = 48
.. 2x^2 -72 = 0
.. 2(x -6)(x +6) = 0
.. x = -6 or 6
.. y = 8x^2 +24 = 8*36 +24 = 312 . . . for either value of x
Answer:
225 square meters
Step-by-step explanation:
Here, we want to get the area of the given shape
The area is a trapezoid and the formula for the area of a trapezoid is;
A = 1/2 (a + b)h
where a and b are the parallel sides
a = 11 m and b = 19 m
h is the height and it is = 15 m
so we have the area of the shape as;
A = 1/2(11 + 19)15
A = 1/2(30)(15)
A = 15 * 15
A = 225 square meters