Answer:
a=4
Step-by-step explanation:
8=3a-4
12=3a
a=4
Each term decreases by 2. As there are 99 terms after -3, we subtract 99*2 from -3 to get -201. B is the correct answer.
Answer:
1. he can go up to 4 rides
2. she can buy 3 flowers
Step-by-step explanation:
1. 19 >= 5+ 3x
19 - 5 >= 3x
14 >= 3x
If you solve this you can get 4 and balance 2
2. 40 >= 2 + 11x
38 >= 11x
If you solve this you can get 3 and balance 5
Using cosine rule, the length of the required side = sqrt(32^2 + 35^2 - 2 x 32 x 35cos 120)
= sqrt(1024 + 1225 - (-1120))
= sqrt(2249 + 1120)
= sqrt(3369)
= 58.04