1. Angle HCA = 44 degrees.
2. Ange RAC = 28 degrees.
3. The area of triangle LPQ is 105.
f(z) = 3z - 2.
The solution is y <= 2x^2 - 6x - 7.
The largest such interval is (-inf,8].
The side length of the square is 29/8.
The answer is 40.
(a) The probability is 1/2^n
(b) The probability is 1/8^n.
f(z) = 3/2*z + 1/4
Wrong answer. Thanks anyway.
The answer is not 120.
The sum of the digits is 32.
This is easy if you use coordinates.
The answer is 45.
The solutions are 2, 8, 10, and 15.
By substitution, y = -2x - 15.
The smallest possible sum is 35.
The smallest value of a is -6.
The answer is 2/5.
