Given that area = length * width, where we know area and length. A simple division will do, x^2 + 2x - 15 / x + 5 = x - 3.
Answer:
b ≈ 48.6°
Step-by-step explanation:
Using the sine ratio in the right triangle
sin b = = , then
b = ( ) ≈ 48.6° ( to 1 dec. place )
When finding the mean you should first add up all the numbers which are 12,2,8,6 and 57 which will give you a sum of 85 next you should divide your sum by how many numbers there are which is 5 and your answer should be 17