F(-1)=-3(-1)+3
F(-1)= 3+3
F(-1)=6
Answer:
y = 18
Step-by-step explanation:
- Re-arrange: 5y + 15 = 105
- Subtract 15 from each side, so it now looks like this: 5y = 90
- Divide each side by 5 to cancel out the 5 next to y. It should now look like this: y = 18
I hope this helps!
In triangle PQR, by the law of cosines we have

In triangle PMQ, we have

Answer:
15°F at 3:00 a.m.
Step-by-step explanation: