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Sindrei [870]
3 years ago
5

How is completing the square beneficial? edge 2020 (journal activity)

Mathematics
1 answer:
polet [3.4K]3 years ago
4 0
Allows you to factor an equation that would normally not be factorable
You might be interested in
Bjon is baking his favorite dessert. The recipe calls for 5/8 of a stick of butter but he wants to double the recipe how much bu
Verizon [17]

Answer:

1 1/4 sticks

Step-by-step explanation:

5/8 x 2 = 10/8 or 1 2/8 = 1 1/4

4 0
3 years ago
Consider the system of inequalities.
Ugo [173]

Answer:

 b)

The point is (-1,5) and (0,0) also satisfies the given inequalities

The solution of the given inequalities

(x, y) = (4 , -2 )

Step-by-step explanation:

<em>Step(i):</em>-

Given system of equations are

3x + 2y < 8

-5x - 9y > -2

The solution of the given equations are

3x + 2y = 8   multiply '5'

-5x - 9y = -2 multiply '3'

       15 x + 10 y = 40  ...(i)

       -15x - 27 y = -6.....(ii)

Adding (i) and (ii) , we get

          - 17 y = 34

                y = -2

Substitute y = -2 in equation 3x + 2y =8

          3x - 4 =8

             3x = 12

               x =4

The solution of the given system of inequalities

(x, y) = (4 , -2 )

<u><em>Step(ii)</em></u>:-

                   3x + 2y < 8

                  -5x - 9y > -2

The point is (-1,5)

                 -3 + 10 < 8

                    7 < 8

                5 - 45 > -2

                   -40 > -2

The point (0,0) also satisfies the given inequalities

Final answer :-

The point is (-1,5) and (0,0) also satisfies the given inequalities

7 0
3 years ago
Find the measure of the indicated side or angle.
lozanna [386]

Answer:

60°

Step-by-step explanation:

We'll begin by calculating EC. This can be obtained as follow:

Angle EAC = 39°

Hypothenus = EA = 3.7 m

Opposite = EC =?

Sine EAC = Opposite /Hypothenus

Sine 39 = EC / 3.7

Cross multiply

EC = 3.7 × Sine 39

EC = 2.3 m

Finally, we shall determine angle BEC. This can be obtained as follow:

Adjacent = EC = 2.3 m

Hypothenus = BC = 4.6 m

Angle BEC =?

Cos BEC = Adjacent / Hypothenus

Cos BEC = 2.3 / 4.6

Cos BEC = 0.5

Take the inverse of Cos

BEC = Cos¯¹ 0.5

BEC = 60°

Thus, angle BEC is 60°

7 0
3 years ago
Which relation is a function?
bonufazy [111]
The second option because one same input cannot have two different outputs
For example, x + 2 = y
If I put in 3, y has to equal 5, nothing else.
This makes the second option the only option that is a function
Hope this helps!
5 0
4 years ago
Read 2 more answers
Simplify the expression by combining like terms:<br> -3m-8(m+1)
Elis [28]

Answer: -11m-8

Step-by-step explanation: first you would distribute (m+1) into -8 causing it to be -3m-8m-8 you then combine like terms getting you -11m-8

3 0
3 years ago
Read 2 more answers
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