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antoniya [11.8K]
3 years ago
8

Decide whether or not it is a function.​

Mathematics
1 answer:
Leno4ka [110]3 years ago
3 0

Answer:this is a function

Step-by-step explanation:

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What is the line of semmetry for the parabola whose equation is y =x^2 +10x=25
frozen [14]

Answer:

x = -5

Step-by-step explanation:

The equation y = x^2+10x+25  can be factored to (x+5)^2

when (x+5)^2 = 0

x = -5

meaning the equation has a line of symmetry at x = -5

5 0
3 years ago
(3x2+4x4-4x+x5)+(2x-5x2+4x4+2x5)
Nastasia [14]
I believe the answer is 3x5+8x4-2x2-2x
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3 years ago
Read 2 more answers
35 solve the following syste
blondinia [14]

Part A: The solution is (-0.923,5.692)

Part B: The point (3,7) is not in the solution set.

Explanation:

Part A: The given inequalities are 3 x+4 y>20 and x

The solution can be determined by solving the two inequalities by substitution method.

Changing inequalities to equality, we have,

x=3 y-18 and 3 x+4 y=20

Let us substitute x=3 y-18 in the equation 3 x+4 y=20 , we get,

3 (3y-18)+4 y=20

   9y-54+4y=20

                  13y=74

                     y=5.692

Substituting y=5.692 in x=3 y-18, we get,

x=3 (5.692)-18

  =17.076-18

x=-0.923

Thus, the solution set is (-0.923,5.692)

Part B: Now, we shall determine whether the point (3,7) is in the solution set.

Let us substitute the point (3,7) in the inequalities 3 x+4 y>20 and x, we get,

3 (3)+4 (7)>20

      9+28>20

            37>20

Also, substituting (3,7) in x, we get,

3

3

3

Since, the point (3,7) does not satisfy one of the inequality x , the solution set does not contain the point (3,7)

Thus, the point (3,7) is not in the solution set.

8 0
2 years ago
Help please! Need answer!! Not test!!!
Ann [662]

There are two ways to list the angles:

1) Simply name them based on the points:

∠W , ∠X , ∠Y , ∠Z

2) The way that I believe that you are supposed to list them in this case. List them as such:

∠WYZ , ∠YZX , ∠ZXW , ∠XWY

~

6 0
2 years ago
Find the<br> area of the figure.
EastWind [94]

Answer:

22 sq ft

Step-by-step explanation:

8 0
2 years ago
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