Which of these sets of numbers contains no irrational numbers? A. -2, 3/8, √10, -0.6868

B. -√144, √49, 6.6

C. -1, 5/6, √11

D. -√5, -√196, -8.15

its B or C

Step-by-step explanation:

Irrational Numbers: 2, 72, 8/23, pi, 5, 10, 3, 15, 17, -11, 2/5, 8, 1.6,

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!

$3720

step-by-step explanation:

taxable income = $31000

as per the 2018-2019 us tax bracket, the tax rate is 12% for an individual whose taxable income is between $9,526 to $38,700.

so, the tax to be paid by him = 12% of 31000

= 0.12 * 31000     [12% converted to decimal as 0.12]

= $3720