What is the perimeter of trapezoid abcd?
round your answer to the nearest tenth.

a.
4.1 units

b.
20.2 units

c.
16.1 units

d.
8.2 units

B. 20.2 units.

Step-by-step explanation:

We have been given an image of a trapezoid on coordinate plane. We are asked to find perimeter of our given trapezoid.

First of all, we will find the length of each side of our trapezoid using distance formula, then we will add lengths of all sides to get the perimeter of trapezoid.

Therefore, the perimeter of trapezoid ABCD is 20.2 units and option B is the correct choice.

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1

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!