A plane cuts horizontally across a rectangular pyramid will always be a rectangle. (Answer B)
Emily = x
Samantha = x + 2
Lauren = x + 4
x + (x + 2) + (x + 4) = 42
x = 12
Thus:
Emily = 12
Samantha = 14
Lauren = 16
X^1/2 ( x + 3) (x - 6)
= x^1/2 ( x^2 - 3x - 18)
= x^5/2 - 3x^3/2 - 18x^1/2
= (sqrt x)^5 - 3 (sqrt x)^3 - 18x^1/2
Option 1
Set both y’s equal to each other.
2x-1 = 3x+4
2x-3x = 4-(-1)
-x = 5
x = -5
Plug x = -5 into any of the given equation. I will use the first one as an example.
y = 2x-1
y = 2(-5)-1
y = -11
Answer: (-5, -11)
