Answer:
did you try searching the formula for axis symmetry
( x² - 1 ) / ( x² + 5 x + 4 ) < 0
x² + 5 x + 4 = x² + 4 x + x + 4 = x ( x + 4 ) + ( x + 4 ) = ( x + 4 ) ( x + 1 )
Therefore:
( x - 1 ) ( x + 1 ) / ( x + 4 ) ( x + 1 ) < 0
( x -1 ) / ( x + 4 ) < 0
1.
x - 1 > 0 and x + 4 < 0
x > 1 and x < - 4 ( not possible )
2.
x - 1 < 0 and x + 4 > 0
x < 1 and x > - 4
Answer: x ∈ ( - 4, 1 ).
Y = 5x + 2
<span>y - 2 = 5x </span>
<span>x = (y - 2) / 5 </span>
<span>So the inverse of h(x) is (x - 2) / 5 </span>
<span>Try it. Let x = 1 </span>
<span>h(1) = 5 * 1 + 2 = 7 </span>
Answer:
3?
Step-by-step explanation:
I just divided 36 and 12 and got 3.
2x-13+3x-8+2x-3+2x-7+3x-1+2x+11+2x+9= (7-2)×180
16x-12=(7-2)×180
(7-2)×180 Work this out on a calculator
And then that answer=16x-12
Then you solve by adding 12 both sides and dividing by 16 both sides to get what x is.
