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yarga [219]
2 years ago
11

Parabola A can be represented using the equation (x + 3)2 = y, while line B can be represented using the equation y = mx + 9. Is

abel claims one solution to the system of two equations must always be the vertex of parabola A.
Which best describes the reasonableness of her claim?
A: Isabel is correct because the y-intercept of line B is (0, 9) and the value of y when x = 0 in parabola A is 9.
→B: Isabel is correct because the y-intercept of line B is (9, 0) and the value of x when y = 0 in parabola A is 9.
C: Isabel is incorrect because the point of intersection between line B and parabola A that can be determined is the y-intercept of the equations, not the vertex.
D: Isabel is incorrect because the point of intersection between line B and parabola A that can be determined is the x-intercept of the equations, not the vertex.
Mathematics
2 answers:
Mkey [24]2 years ago
4 0

Answer:

c

Step-by-step explanation:

edge2020

frosja888 [35]2 years ago
4 0

Answer:

The correct answer is c, Isabel is incorrect because the point of intersection between line B and parabola A that can be determined is the y-intercept of the equations, not the vertex.

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Some boys and girls took part in a competition. 2/5 of the competitors were boys. 1/3 of the boys were disqualified from the com
GaryK [48]

Answer:

45

Step-by-step explanation:

According to the Question,

  • Given, Some boys and girls took part in a competition. 2/5 of the competitors were boys So 3/5 of the competitors were girls.

And there were Total 135 competitors.

So, the Number of Boys are 135 × (2/5) = 54 boys

Therefore, the Number of Girls in the competition is 135-54 = 81 Girls.

Now,

  • 1/3 of the boys were disqualified from the competition. So, 54× (1/3) = 18 boys Disqualified . the Remaining boys are 54-18 = 36 boys left in Competition.
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7 0
2 years ago
A. (0,-10)<br> B.(-10,0)<br> C.(0,-2)<br> D.(-2,0)
astra-53 [7]

Answer:

B

Step-by-step explanation:

I'm unsure because the image is a bit blurry but the x-intercept is probably -10,0. The x -intercepts are x -values for which the function has a value of zero: f(x)=0 f ( x ) = 0 . So with plain logic, the numerator will be 0.

Hopefully, this helps!

6 0
2 years ago
(1 point) Mark deposits $1000 each month in a retirement plan paying 4% compounded monthly. How much will he have in the account
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Answer: 1,490.83


Step-by-step explanation:


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