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emmainna [20.7K]
3 years ago
5

Completely factor the polynomial. 12x2 + 2x - 4

Mathematics
1 answer:
Vesna [10]3 years ago
3 0
Happy holidays!!!!;)

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What is the slope of (2,5) and (5,8)
murzikaleks [220]

Answer:

Slope = 1

Step-by-step explanation:

Slope = change in y/change in x

         = (8-5)/(5-2)

        =3/3

6 0
3 years ago
Elimination/subtraction
denpristay [2]

Answer:

x = 0, y = 7

Step-by-step explanation:

Solving a system of equations using substitution requires one side to be equal to a variable present in the equation, in this case x or y. We should simplify the equation using elimination before substituting to reduce the chance of error.

In order to use the elimination method, you have to create variables that have the same coefficient—then you can eliminate them. These equations arew already aligned for us.

                  3x - 10y=-70

             -<u>   4x +9y = 63</u>

                  -x + y = 7

Now, for substitution, the equation must be set to a variable.

                  -x + y = 7

                  y = x + 7

Next, plug the equation in where applicable in another equation.

                  4x +9(x + 7) = 63

                  4x + 9x + 63 = 63

                  13x = 0

                  x = 0

The final step of substitution is to plug the known variable into an equation to find the other variable.

                  3(0) - 10y=-70

                  0 - 10y = -70

                  10y = 70

                  y = 7

I guarantee you this answer is correct, I worked it out using other methods and graphing prior to submitting this answer.

8 0
3 years ago
Read 2 more answers
What is the area of the largest rectangle with lower base on the x-axis and upper vertices on the curve y = 27 - x2?
statuscvo [17]
The answer is 54 square units.
let the vertex in quadrant I be (x,y) 
<span>then the vertex in quadratnt II is (-x,y) </span>
<span>base of the rectangle = 2x </span>
<span>height of the rectangle = y </span>
<span>Area = xy </span>
<span>= x(27 - x</span>²<span>) </span>
<span>= -x</span>³<span> + 27x </span>
<span>d(area)/dx = 3x</span>²<span> - 27 </span><span>= 0 for a maximum of area </span>
<span>3x</span>²<span> = 3 x 3</span>² = <span>27 </span>
<span>x</span>²<span> = 9 </span>
<span>x = ±3 </span>
<span>y = 27-9 = 18 </span>
So, the largest area = 3 x 18 = 54 square units
5 0
3 years ago
Read 2 more answers
Pls help:<br> Expand -5(3n+2p+q)
timurjin [86]
-15n-10p-5q should be correct
7 0
3 years ago
Please help, had problems with it for 3 hours.
mihalych1998 [28]

so based on what is given they are congruent. If you rotate <DEF till it matches <ABC you will see they are the same size.

7 0
3 years ago
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