Can someone plz help me with this problem I’m trying to get to 75 it will really mean a lot me !!!

Write a function that matches the description. a cosine function has a maximum of 5 and a minimum value of -5. f (r) =

Enter numbers to write 0.000328 0.000328 in scientific notation. 1 1 0.000328=3.28 × 0 . 000328 = 3 . 28 × =3.28×10 = 3 . 28 × 10

What is the expression in factored form? -x^2 + 3x + 28 a. (x-7)(x-4) b. -(x-7)(x+4) c. (x+4)(x+7) d. -(x-4)(x+7)