Answer:
X=20
Step-by-step explanation:
Sin(x+20)=cos(2x+10)
Sin(x+20)=sin(90-(2x+10)
X+20=90-2x-10
3x=60
X=20
Answer:
1/3
Step-by-step explanation:
For each term multiply each number to see what value you get, only 1/3 makes sense
18 x 1/3 =6
6 x 1/3= 2
Answer:
is a horizontal stretch of
by
units.
Step-by-step explanation:
The given functions are;

and

The parent function is
.
The function
is a horizontal stretch of
by
units.
Hey! I'll provide the steps required.
First, solved the proportion by cross multiplication.

Then use the commutative property to reorder the terms as well as multiply the numbers.
90x = 9720
Finally, divide it by 90.
x = 108