If 1/a + 1/b = 1/c and ab=2c, what is the average of a and b?

The tangent of an angle is not which of the following? a) ratiob) proportionc) fractiond) opposite over adjacent

Describe the symmetry of the figure. identify lines of symmetry, if any. find the angle and the order of any rotational symmetry.

The amount of money, in dollars, in an account after t years is given by a = 1000(1.03)^t. the initial deposit into the account was $_^a0 and the interest rate was _a1% per year. only enter numbers in the boxes. do not include any commas or decimal points^t. the initial deposit into the account was $__^a0 and the interest rate is % per year.