70.
Which of the functions below have exactly
two distinct real zeros?
1. S(x) = -x2 + 14x-45
II. f(x) = 4x2 + 4
III. f(x) = 2x2 + 12x + 18
IV. f(x) = 3x2 - 4x-4
A. I and IV
C. II and III
B. I, II, and III
D. III and IV

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour

1 and 0

step-by-step explanation:

mr. india