1. We found numbers h and k such that, for every real number
x, ax^2 + bx + c = a(x − h)^2 + k as long as a, b and c are real numbers and a≠0.

(a) What are those numbers h and k in terms of a, b and c?

(b) Now, if a > 0, use the fact that t^2 ≥ 0 for every real number t to conclude ax^2+ bx + c ≥ k for every real number x.

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92

answer is  

a.

93.98 sq. in.

hope you got it chief

the answer would be 9 because if it is perpendicular to the green line. the red lines slope is the opposite or reciprocal of the slope of the green line.

0.276

step-by-step explanation:

1.38 divided 5 = 276! 1