Answer:

Step-by-step explanation:
The basic graph of y = Sin(x), starts at x = 0.
Looking at the graph, the basic sin curve starts at x = π/4
So this function is the parent sin function shifted π/4 units to the right.
<u>Note:</u>
y = Sin(x-a) is the parent function ( y= Sinx) shifted a units right
y = Sin(x+a) is the parent function shifted a units left
<em>Since this function is shifted </em>π/4 units right, the equation would be:
y = Sin (x-π/4)
The third answer choice is right.
Answer:a
Step-by-step explanation:
the first graph is (x+20)/x
the second graph is x/(x-20)
Since 3:00 a.m is three hours after midnight, the variable h in the function would be three.
T(h) = -15 + 3h step 1 - write the equation
T(3) = -15 + 3(3) step 2 - plug in h, which is three
T(3) = -15 + 9 step 3 - simplify the expression
T(3) = -6
A equals 3 because 87 divided by 29 equals 3. You can check this by doing 29 times 3 which equals 87. Hope that Helped!