Solve:
9(30 + a) = 99
a =

Hello,

Example,

2 (x+3)=12x

We divide with 2 at everywhere.

2 (x+3)/2=12x/2

x+3=6x

Now x, be -x.

3=6x-x

3=5x

Wè divide with 5.

3/5=5x/5

3/5=x

Answer the questions.

9 (30+a)=99

We divide with 9.

9 (30+a)/9=99/9

30+a=11

Now 30, be -30.

a=11-30

a=(-19)

#Tr

Good lessons!

step-by-step explanation:

what are the statements? and what do you mean by "216 2 1 6"?

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.