Answer:
x = 4
Step-by-step explanation:
Given that sin(13x) = cos(9x+2)
Since sintheta = cos(90 - theta)
hence sin (13x) = cos (90 -13x)
Substitute into the original equation
cos (90 -13x) = cos(9x+2)
90-13x = 9x+2
-13x - 9x = 2 - 90
-22x = -88
x = 88/22
x = 4
Hence the value of x is 4
The coeficient is 2.6 so
2.6x+23.4
if you want to factor out the coeficient then divide the whole thing by 2.6
(2.6x+23.4)/2.6=x+9
2(x+3) means 2 times (x+3)
so the factored out coeficient is
2.6(x+9)
Answer:
2
Step-by-step explanation:
|a+x|/2-|a-x|/2
Plug in the values.
|-2+-6|/2-|-2- -6|/2
Evaluate.
|-8|/2-|4|/2
Apply rule : |-a| = a
8/2 - 4/2
4 - 2
Subtract.
= 2
Answer:
12 miles
Step-by-step explanation:
7.65 x 10⁻² Because 10⁻² makes the decimal move two places to the left