Explanation: the positive 3y and the negative 3y cancel each other out. Then you combine the x values which equals 13x=13
X=1 then plug the x back into the equation 7x+3y=8. X=1 and Y=1/3
You can find the rate of change by taking it's derivative.
Answer:
4).
Step-by-step explanation:
sin A = cos B
Because sin A = CB/AB and cos B = CB/AB.
Giving the answer to your homework is too easy, try splitting up the square into triangles. If you know angle A then split it in half (getting 20) and then calculate the missing value at corner C, multiply it by 2 and you get the value for the entire C. Now you know 3/4 angles.
F(3) = 16, you simply plug in 3 for x to find the answer.