Find the value of x.
(8x+19)(9x+9)
Please give step by step

SOLUTION STEPS

(8x+19)(9x+9)

Apply the distributive property by multiplying each term of 8x+19 by each term of 9x+9.

72x 2 +72x+171x+171

Combine 72x and 171x to get 243x.

72x 2 +243x+171

hopefully my weird explanation helped

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.

the expected value of the random variable : 0, 1 and 2

step-by-step explanation: