I'll treat these like they're two seperate problems because how you set it up they're not together. If it's one whole problem please tell me and I'll solve it that way. :-)

First one: 3x+9+8x + 12

Collect like terms and simplify

(3x+8x)+(9+12)

11x+21

Second one: 2x + 6+x² + 6x + 9

Collect like terms and simplify

$(2x+6x)+(6+9)+x^{2}$

8x+15+ $x^{2}$

Hope this helps you, have a BLESSED and wonderful day, as well as a safe one!

-Cutiepatutie ☺❀❤

6 0

3 years ago

Can someone please help me ASAP

Natasha2012 [34]

7^2 +6 ^2= 85
Square root of 85 = 9.219544457

Answer : 9.2

3 0

3 years ago

Read 2 more answers

HELP ASAP<br> What is the measure of ZDBE?<br> A. 120°<br> B. 45°<br> C. 75°<br> D. 60°

kolezko [41]

B. 45 degrees is the answer

4 0

2 years ago

Read 2 more answers

Sam invests $800 at 6%/a compounded annually for 5 years. What is the total interest<br> earned?

s2008m [1.1K]

<h3>Answer: 270.58 dollars</h3>

======================================================

Work Shown:

A = account value after t years
P = principal or amount deposited = 800
r = interest rate in decimal form = 0.06
n = number of times we compound per year = 1
t = number of years = 5

So,

A = P*(1+r/n)^(n*t)

A = 800*(1+0.06/1)^(1*5)

A = 1070.58046208

A = 1070.58

After five years, the account will have $1,070.58 in it.

The amount of interest earned is A-P = 1070.58 - 800 = 270.58 dollars.

4 0

2 years ago