The answer is C because 90-55 is 35 and 90+55+35=180
The answer would be 345.
To solve, simply lay your equation
3(125−4)−18
Step 1: Solve the parenthesis.
=(3)(121)−18
Step 2: Multiply parenthesis by 3.
=363−18
=345
So the answer for this problem is 345.
Answer: 2x + 12 = 30
12 is the initial fee, then x is the unknown variable. Since each snack costs 2 dollars, and we don't know how many she had, we can use the equation:
2x + 12 = 30
| | |
snack initial total
fee fee $ spent
<span>.0833333333 with repeating 3 is (2/24) or (1/12) <- There's you're answer.
<em>(Just put this up here since I answered it in a comment)</em></span>
Sin(a)=
To find sin(2a) = 2*sin(a)*cos(a), we ned to find cos(a)
We know that,
sin²(a) + cos²(a) = 1
cos(a) = 
cos(a) = 
Thus, cos(a) = +- 
We know a is in second quadrant and thus cos(a) is - because cosine is always negative in the second quadrant.
Therefore,
sin(2a) = 2*sin(a)*cos(a) = 
