Please help mew

i think to find the area you need to add a b c and d

Step-by-step explanation:

The figure (kite) is symmetric and covers half of the area of rectangle with sides 8 units aby 10 units

The area of the rectangle:

The area of the kite:

Split the kite into two triangles and calculate their area and add up

Triangle DCB has b = 8, h = 2 and has area:

Triangle DAB has b = 8, h = 8 and has area:

Total area:

Step-by-step explanation:

area=(product of diagonals)/2=(10×8)/2=40 sq. units.

the 1st digit is in the 100s n its 1

step-by-step explanation:

3,589÷18 = 199.389

so the first digit of the quotient is in the 100s n its 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!