Answer:
See solution below
Step-by-step explanation:
Given the expression

Recall that
cos x = sin(90-x)
cos(x+30 ) = sin (90-(x+30)
= sin(90-x-30)
= sin(60-x)
Substitute

Answer:
A. 
Step-by-step explanation:
We have been given a diagram. We are asked to find the measure of angle RST.
We can see that angle RST is formed by intersecting chords inside the circle, so its measure would be half the sum of intercepted arcs as:




Therefore, the measure of angle RST is 62 degrees.
Answer: 33
Step-by-step explanation:
33 kids in band
10 taking band + chorus
24 taking chorus
33+10+24=67
100-67=33
At least $73.50 for 7x3 is 21 gallons and 10.50x7 is $73.50
Answer:
4.5 or 4.69 because you round it