The math department is putting together an order for new calculators. The students are asked what model and color they prefer.
Model A1 Model B2 Model C3 Total
0.10
Black 0.05
0.20
0.35
0.15
White 0.40
0.10
0.65
Total
0.45
0.25
0.30
1.00
Which statement about the students' preferences is true?
O A. More students prefer black Model C3 calculators than white
Model A1 calculators.
B. More students prefer Model C3 calculators than Model A1
calculators
C. More students prefer black calculators than white calculators.
D. The fewest students prefer black Model A1 calculators.
I

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)

multiply each one by 3.14

step-by-step explanation: