Answer:
The answer to your question is 50 inches
Step-by-step explanation:
Data
Area = 200 in²
diagonal 1 = 8 in
diagonal 2 = ?
Formula
Area = (diagonal 1 x diagonal 2) / 2
Solve for diagonal 2
diagonal 2 = 2 x Area 2 / diagonal 1
-Substitution
diagonal 2 = 2 x 200 / 8
-Simplification
diagonal 2 = 400 / 8
-Result
diagonal 2 = 50 in
Um I can't answer without an image
Answer:
-3(-3x + 4) = 9x - 12
Step-by-step explanation:
-3( Ax + 4) = 9x - 12
-3Ax -12 = 9x - 12
Equating coefficients of x terms on both sides :
-3A = 9
A = -3
Therefore, -3(-3x + 4) = 9x - 12
Although the question is incomplete, I have seen it before.
The equations are:
3a + 6b = 12
-3a + 6b = -12
Adding the equations, we get:
12b = 0
And b = 0
-π/2 < arctan(x) < π/2
So cos(π/2) < cos(arctan(x)) < cos(0)
0 < cos(arctan(x)) < 1
