1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
netineya [11]
2 years ago
12

9. Select all expressions that are

Mathematics
2 answers:
Kruka [31]2 years ago
7 0

Answer:

Step-by-step explanation:

2(9a - 6) = 2*9a - 2*6 = 18a - 12    

Yes, it is equivalent.

6*(3a-2) = 6*3a - 6*2 = 18a - 12

Yes, it is equivalent.

-3(6a+4)= -3*6a + 4*(-3) = -18a - 12

No, not equivalent

3(6a+4) = 3*6a + 3*4 = 18a + 12

No, not equivalent

-3(4-6a) = -3*4  - 6a*(-3 )  = -12 + 18a = 18a - 12

Yes, it is equivalent.

Bogdan [553]2 years ago
3 0

Answer:

<h2>2(9a - 6), 6(3a – 2) and -3(4 – 6а)</h2>

Step-by-step explanation:

2(9a - 6) = 2 × 9a + 2 × (-6)

= 18a - 12

6(3a - 2) = 6 × 3a + 6 × (-2)

= 18a - 12

- 3( 4 - 6a ) = - 3 × 4 + (-3) × (- 6a)

= - 12 + 18a = 18a - 12

You might be interested in
Please help me solve
ruslelena [56]

Answer:

Step-by-step explanation:

So for this we have to find the percentage by using 'percentage of error'

If at first it was 15 then it went up to 19 we have to subtract 15 - 19= -4

Ignore the negative. Now divide= 4/19= 0.21

The size went up by 21%

6 0
2 years ago
Read 2 more answers
111 is what percent of 300
andrey2020 [161]
100%/x%=300/111(100/x)*x=(300/111)*x 100=2.7027027027*x    100/2.7027027027=x 37=x x=37% 
8 0
3 years ago
Help Me Please!!! I can't get this wrong
8_murik_8 [283]

Answer:

41ft is your answer

left side=√(12²+12²)=16.97=17ft

perimeter=sum of all side=12+12+17=41ft

6 0
2 years ago
Help PLEASE this is 99 points what is the prime factorization of 270?
serg [7]

270 = 27 * 10

 = 3*9     * 5*2

 = 3 *   3*3  * 5*2


in order from smallest to largest

2*3*3*3 *5

5 0
2 years ago
Read 2 more answers
I NEED HELP PLS i don’t understand exactly how to do this :/
Sholpan [36]

Answer:

I assume AC = 49.89 since the number is cut off

Step-by-step explanation:

tangent(degree) = opposite / adjacent

To find AC, you can set up tan(29) = AC / CB

tan(29) = AC / 90 (the picture is cutted off, so I assume....)

90*tan(29) = AC

4 0
3 years ago
Other questions:
  • What is the difference between(5+x) and (2x+3)
    5·1 answer
  • What is the value of “three less than the quotient of six and a number, increased by nine” when n = 3?
    8·2 answers
  • A third-degree polynomial has 4 intercepts.
    10·1 answer
  • the next model of the car will cost 14.4% more than the current model. the current model costs 39,000 how much will the price in
    13·1 answer
  • A major DVD rental chain is considering opening a new store in an area that currently does not have any such stores. The chain w
    10·1 answer
  • Square root<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B121%20%7D%20" id="TexFormula1" title=" \sqrt{121 } " alt=" \sqrt{1
    11·2 answers
  • Jim bought d donuts at $0.98 each. Write an expression for the total cost of donuts
    10·2 answers
  • Slope of the line that passes through (6,0) and (0,-6)
    10·1 answer
  • Part 1
    11·1 answer
  • Two step equation<br><br> x + 9/2 = 3
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!