(3x - 1)(3 -x)+x^2 + 19
a)
(3x - 1)(3 -x)+x^2 + 19
=9x - 3x^2 - 3 + x + x^2 + 19
= -2x^2 + 10x + 16
b) evaluate at x = 2
-2x^2 + 10x + 16
= -2 (2^2) + 10(2) + 16
= -8 + 20 + 16
= 28
c)
from part (a)
-2x^2 + 10x + 16
= -2 (x^2 - 5x - 8) (complete factor)
If x is the number of sides of the regular polygon, then the sum of the interior angles is (x - 2) * 180 = 56 * 90. Solving for x gives 30 for the number of sides of the regular polygon.
To get the central angles measure, divide 360 by 30 to get 12 degrees for the measure of one of the 30 central angles.
Answer: 12 degrees
You answer is 229 multiply first then add (PEMDAS)
Total Volume of pepsi in this pack of 12 is 244.3308 in³.
Given:
12 Cylindrical can
radius of 1.25 in
height of 4.15 in
Find total volume:
Volume = π r² h where π = 3.14
V = 3.14 * (1.25in)² * 4.15 in
V = 3.14 * 1.5625 in² * 4.15 in
V = 20.3609 in³
Volume of 20.3609 in³ is only good for one can. There are 12 cans.
Total Volume = 20.3609 in³ x 12 cans = 244.3308 in³
Answer:
Step-by-step explanation:
