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Molodets [167]
3 years ago
12

7+(8+12)=------- +12 complete the equation and tell what property you used

Mathematics
2 answers:
andrew11 [14]3 years ago
7 0
7+(8+12)=(7+8)+12
Associative property of addition.
natima [27]3 years ago
3 0
You do peranthais first then go left tobright
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How many solutions exist for the system of equations on the graph?
mrs_skeptik [129]

Answer:

<u>Two</u>

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

Step-by-step explanation:

The solution for any system of equations is the intersection points between the graph that representing the system of equation.

So, for the given system of equation, we have  a circle and a parabola.

As shown in the figure, The circle and parabola are intersects at two points

So, there are two solutions for the system of equations on the graph.

So, The answer is option two.

4 0
3 years ago
Read 2 more answers
3(4x+8)+3?<br> answer<br> this<br> question <br> please
Diano4ka-milaya [45]

Answer: 12x+27

Step-by-step explanation: 3*4=12 and 3*8=24 24+3=27 so simplyfy it and you would get 12x+27

5 0
3 years ago
Factor completely: −2x3 + 6x2
Pavel [41]
Correct answer is C.

-2x^3+6x^2  \\-2x^2x+2x^23 \\2x^2(-x+3) \\2x^2(-(x-3)) \\-2x^2(x-3)
4 0
4 years ago
It’s system of equations but it needs to be solved in substitution if you can answer I’ll give five stars
Aloiza [94]
2x - 3(x-1) = -1
2x -3x + 3 = -1
-1x + 3 = -1
-1x = -4
x = 4

y = 4 - 1
y = 3
8 0
3 years ago
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Solve for x: 4(x + 2) = 3(x − 2)<br><br>A) −2<br>B)−4<br>C) −10<br>D) −14
BARSIC [14]

4(x+2)=3(x-2)

Multiply the first bracket by 4

Multiply the second bracket by 3

4x+8=3x-6

Move 3x to the left hand side, whenever moving a number with a letter the sign changes ( positive 3x to negative 3x)

4x-3x+8=3x-3x-6

x+8=-6

Move positive 8 to the right hand side

x+8-8=-6-8

x=-14

Check answer by using substitution method

Use x=-14 into both of the equations

4(-14+2)=3(-14-2)

-56+8=-42-6

-48=-48

Answer is -14- D)

6 0
3 years ago
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