F(x)=x^2+9; f(x+3)evaluate the function at the given value of the independent variable and simplify

In the given triangle, ∠aed ∼ ∠ abc, ad = 6.9, ae = 7.2, de = 5.2, and bc = 10.2. find the measure of bd and ce. round your answer to the nearest tenth.

From the beginning of the day the temperature rose 15 degrees so that by 4 pm it was 87 degrees. what was the temperature at the start of the day

If the value of cos330°is√3/2 then find cos 165°.