Answer:
BC = 88.88
Step-by-step explanation:
Comment.
This looks like an example of the cos law.
Givens
AB = 100 m
<A = 60 degrees
AC = 70 m
Cos(60) = 1/2
BC = ?
Formula
BC^2 = AB^2 + AC^2 - 2*AB*AC * Cos(60)
Solution
BC^2 = 100^2 + 70^2 - 2*100*70 * 1/2 1/2 and 2 cancel out
BC^2 = 10000 + 4900 - 7000
BC^2 = 7900 Take the sqr root of both sides
√BC^2 = √7900
BC = 88.88
<span>30 + 2 + 0.04 + 0.003</span>
6a-2(a-1)
6a-2a-2
4a-2
I think it is 4a-2
Answer:
10, 20, 6
Step-by-step explanation:
10 times 2 is 20 which is greater than 10, 20 times 2 is 40 which is greater than 10, and 6 times 2 is 12 which is also greater than ten.