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oksano4ka [1.4K]
3 years ago
8

Assuming we have an upward-facing parabola describe the location of the vertex in relation to the x-axis (above, below, or on th

e x-axis) when your discriminant is negative, positive and zero.
a. Negative discriminant:

b. Positive discriminant:

c. Discriminant is zero:
Mathematics
1 answer:
goldfiish [28.3K]3 years ago
4 0

Answer:

a. Negative discriminant: above  

b. Positive discriminant:  below

c. Discriminant is zero: on

Step-by-step explanation:

If the discriminant is negative, then there are no real zeros. We have an upward-facing parabola, then the vertex is located above the x-axis

If the discriminant is positive, then there are two different real zeros. We have an upward-facing parabola, then the vertex is located below the x-axis

If the discriminant is zero, then there is one zero. We have an upward-facing parabola, then the vertex is located on the x-axis

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Solve for x and y in the system of equation<br>3x²+4y=17 <br>2x²+5y=2<br>I'll mark brainliest​
Novay_Z [31]

Answer:

x=\pm \sqrt{11} \\y=-4.

Step-by-step explanation:

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Answer:

Step-by-step explanation:

first the parenthesis

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A random sample of 150 men found that 88 of the men excercise regularly, while a random sample 200 women found that 130 of the w
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Answer:

The hypothesis is:

<em>H₀</em>: p_{X}-p_{Y}=0.

<em>Hₐ</em>: p_{X}-p_{Y}.

Step-by-step explanation:

Let <em>X</em> = number of men who exercise regularly and <em>Y</em> = number of women who exercise regularly.

The information provided is:

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<em>Hₐ</em>: The proportion of women is more than men who exercise regularly, i.e. p_{X}-p_{Y}.

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Answer:

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