16. Determine the value of k for each equation so that the given x-value is a solution. a. x3 + 2x2 x² – 9x + k = 0; x = 3 b. x3 - 3x2 + kx - 12 = 0; x = -4

the answer is 844

step-by-step explanation:

it is 844 because if you add 836.50 + 7.5 you will get 844

1.0

step-by-step explanation:

3

step-by-step explanation:

there is only one way to arrange all the eight relative to each other because they are not distinct. we have

now there are nine places to place an (and not more than one in one place).   because we have four symbols, we need to choose four of these nine places to insert an . order does not matter because the are not distinct.

thus there are 1 · c(9,4) ways, or, if we calculate it,

thus there are 126 ways to form such "words."