Shana has a set of cards with a shape on each.

The probability of randomly selecting a triangle is 20%.
The probability of randomly selecting a square is 35%

What is the probability she selects a card that is NOT a triangle, replaces it, and then selects a card with a square?
WRITE YOUR ANSWER AS A PERCENT

28%

Step-by-step explanation:

P(triangle) = 20% = 0.2

P(not a triangle) = 1 - P(triangle)

= 0.8

P(square) = 35% = 0.35

P(not triangle & then square)

0.8 × 0.35

0.28 × 100

28%

b

step-by-step explanation:

given

- 2 (3x + 12y - 5 - 17x - 16y + 4 )

simplify the parenthesis by collecting like terms

= - 2 (- 14x - 4y - 1) ← distribute the parenthesis by - 2

= 28x + 8y + 2 → b

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!