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2 years ago

Which is the equation of the parabola?

Mathematics

1 answer:

mestny [16]2 years ago

6 0

Answer:

y = -1/20(x + 3)²

Step-by-step explanation:

<u>Consider the parent function:</u>

y = x²

The graph of the function open up and the vertex is at the origin, the point (0, 0)

Now, if it opens down, it means it is a reflection of the parent function over x axis, hence it has a negative coefficient, the function becomes:

y = -x²

The vertex is shifted to the point (-3, 0). It means the function also translated left by 3 units, the function becomes:

y = -(x + 3)²

<u>Since all the options have 1/20 as a coefficient, our function is:</u>

y = -1/20(x + 3)²

This is option B

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Ainat [17]

Answer:

I got sin E = 0.5

Thus answer choice C being the correct choice

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Step-by-step explanation:

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2 years ago

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2 years ago

A circle is centered at the point (5, -4) and passes through the point (-3, 2).

KATRIN_1 [288]

By definition, the equation of a circle, centered at point (a, b) is

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Where r is the radius of the circumference, and is calculated as the distance from the center to any point belonging to the circumference.

We have the center (5, -4) and the point through which the circumference passes (-3, 2), then:

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Finally, the equation of the circumference is:

$(x-5) ^ 2 + (y + 4) ^ 2 = 10 ^ 2$

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2 years ago

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A Bank manager receives Rs. 18000 for a basic 36 hours per week Over time is paid at a time and a half. How many hours are worke

-Dominant- [34]

He worked 43 hours to earn Rs. 23250

His basic pay is Rs. 18000 for a basic 36 hours a week. His salary is

Rs. 23250. This proves that he has worked extra time. So the amount earned in the extra hours equals Rs. 23250 - Rs. 18000 = Rs.5250.

Amount per hour earned in basic pay = 18000/36 = Rs.500 a hour.

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So number of hours he worked in extra time = Rs.5250/750 = 7 hours.

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2 years ago

There are infinite rational numbers between any two given option natural 2 whole 3 integer 4 all of above

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Answer:

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3 years ago