Answer:
Step-by-step explanation:
7.86 = 3x - 1.11
3x = 6.75
x = 2.25
Answer:
c
Step-by-step explanation:
the scale is balanced so its equal
Answer:
12.5
Step-by-step explanation:
I just know the answer
ANSWER
D.

EXPLANATION
The given function is

Comparing to the general form of a trigonometric sine function,


The amplitude is absolute value of A


The period is given by



is a shift to the right of 4 units.
and

is an upward shift of 9 units
Therefore the phase shift is (4,9).
The correct answer is D