Given sin k = -√3/2 , and 450° <k< 680°, the smallest possible value for k must be degrees. Any one know this stuff?
it's grade 11 Trig

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.

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?

Write the function for the graph. (1.8) (0,4)