Answer:
multiply 15 by 6 and you will get the area of the garage. multiply that by 8 and you will get the cost
sin(C) = opposite side / hypotenuse
= 15/17
d=-4 and a=10
Step-by-step explanation:
The sum of a arithmetic sequence is given by (n/2)*(2a+(n-1)d). Comparing coefficients with the given Sn, we have; a-d/2=12 and d/2=-2, d=-4 and a=10.
It's D hope it helps
1a. 4
1b. 10
2a. 12
2b. 15
3a. 6
3b. 14
4a. 14
4b. 5
