Solve. - 1 3 x > 5 a) x < -15 b) x > -15 c) x > 5/3 d) x < -5/3

I'm assuming by the answer choices that you're question is:

-1/3x > 5

Isolate the x. Multiply -3 to both sides

(-3)(-1/3)x > 5(-3)

x > 5(-3)

Remember to flip the sign when you multiply by a negative number

x > 5(-3)

Multiply

x < -15

x < -15, or (A) is your answer

hope this helps

~Rise Above the Ordinary

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

happy to

pls mark as brainliest

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!