The absolute value equation is
, if the solutions are x=2.5 and x=-3.5.
Step-by-step explanation:
The given is,
Two solutions: x = 2.5 and x = -3.5
Step:1
In this question we use reverse method of quadratic equation solve method,
From first solution, x = 2.5
x - 2.5 = 0..........................(1)
From the second solution, x = -3.5
x + 3.5 = 0.................(2)
From the equations (1) and (2),
( x - 2,5 ) ( x + 3.5 ) = 0
Multiply the equations,


Step:2
Check for solution,
..........................(3)
Substitute the value of x=2.5 in above equation,

6.25 + 2.5 - 8.75 = 0
0 = 0
Result:
The absolute value equation is
, if the solutions are x=2.5 and x=-3.5.
Answer: Well since the ratio is 9:7 for red to blue well transfer that first by finding out the blue if there are 117 xc=9:7x13 would be 117 red and 7x13=91 blue so the new ratio is 117:91.
So now we add which I'm sure you can do,
117
+
91
_____
208 <-<u><em>your answer </em></u>
Answer:
b
Step-by-step explanation:
Answer:
Step-by-step explanation:
cos θ=sinθ
divide by cos θ
1=tan θ
tan θ=1=tan 45,tan (180+45)
θ=45°,225°