Cos30=√3/2 prove cos15=√3+1/2√2​

16. you're planning to buy a boat, a motor, and some miscellaneous boating equipment. the boat costs $325, the motor costs $225, and the equipment costs $79. if you've saved $438 toward these purchases, how much more do you need to save? a. $181 b. $281 c. $291 d. $191

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

Are the corresponding angles congruent? explain why or why not.