-6 is less than or equal to 2x - 12 is less than 20

1 answer:

7 0

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Vsevolod [243]

Answers:

a) True. Plug in x = 0 and it leads to y = c. Therefore, the point (0,c) is on the parabola.
b) False. Plug in y = 0 and apply the quadratic formula. One x intercept may sometimes be x = c, but it could easily be other values as well. Or perhaps you may not get any real number solutions at all. See part d) below.
c) True. If a < 0, then the leading coefficient is negative. Overall, both endpoints will tend toward negative infinity to produce a parabola that opens downward.
d) False. The quadratic may have one x intercept or it may not have any x intercepts at all. It depends on what the discriminant d = b^2 - 4ac is equal to. If d < 0, then we have no x intercepts. If d = 0, then we have exactly 1 x intercept. If d > 0, then we have two different x intercepts.
e) True. The vertex's x coordinate is -b/(2a). If b = 0, then the x coordinate of the vertex is 0. The vertical line x = 0 is directly on top of the y axis.

8 0

3 years ago

ehidna [41]

Answer:

1000

Step-by-step explanation:

The theory is that "experimental probability goes closer and closer in value to the theoretical probability as the number of trials increase."

So more trials means more they are closer and equivalent.

So out of the answer choices, the largest number of trials is 1000.

1000 is the correct answer.

8 0

3 years ago

earnstyle [38]

Answer:

768 fluid ounces

8 0

1 year ago

Pachacha [2.7K]

It’s the C because i did it in virtual class science

3 0

2 years ago

-Dominant- [34]

The mid point in between 10&20 is 15

5 0

3 years ago