Jackie has one red pencil. one yellow pencil, one blue pencil, one green pencil, one orange pencil, and one purple pencil. she also has one red pen, one blue pen, and one black pen. if jackie randomly selects one pencil and one pen, what is the probability that she will select a purple pencil and a black pen in that order? a. 1/72 b. 1/18 c. 1/10 d. 1/2

77

step-by-step explanation:

the answer is y = 11.54

hope this : )

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form

it's undefined because anything multiplied by 0 is 0. that said, 7 days is 168 hours