An 80% confidence interval is found to be (26, 38). What is the margin of error?
A. 9.6
B. 12
C. 6
D. 4.8

x = 12

y = 1

for the points!

choice b

step-by-step explanation:

f(x) = 88x^2 -264x + 300

the line of symmetry of a parabola is defined by

h = -b/2a

where ax^2 +bx+c=0

so

h = - -264/ (2*88)

h = 3/2

so x = 1.5

the answer is c.

perimeters = 3√10/5

areas = 90/25

i got it down chief.