19. Binomial (-3x - 4) and trinomial (-2x2 +4x +5) are the factors of which of the following polynomials? a.
6x2 - 4x2 - 19x -20
b. 6x2 - 4x2 - 31x - 20
c. 6x2 - 4x2 + 31x - 20
d. -6x - 4x2 - 19x - 20

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

the correct answer option is d. la = πrs.

step-by-step explanation:

we know that for a right cone, the lateral surface area is given by:

lateral area of right cone =

here the value under the square root is equal to slant height so replacing this value by in the formula to get:

lateral area of right cone =

therefore, the correct answer option is d.