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2 years ago

Which one of the following equations represents a circle with its center of origin?

Mathematics

1 answer:

babymother [125]2 years ago

3 0

Answer:

A) x² + y² = 5

Step-by-step explanation:

The equation of the circle:

(x - h)² + (y - k)² = r²

The center is (h, k)

Wen the center is the origin we have, h = 0, k = 0:

x² + y² = r²

The only equation in same format is the first one

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Use the formula d =rt to find the distance d a long distance runner can run at a rate r of 9 1/2 miles per hour for time t of 1

shtirl [24]

D=rt
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This will give you:
d=(9.5)(1.75)

Then you solve:
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You should probably convert that decimal answer into a fraction since you're question gave it to you as a fraction.

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2 years ago

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3 years ago

For one full week, Cheng spent $12.50 per day on lunch. Write a multiplication expression using integers to show the overall imp

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3 years ago

Find the value of a and b in (a,2)=(2,b)

Ksenya-84 [330]

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2 years ago

If you are dealt 4 cards from a shuffled deck of 52 cards, find the probability of getting two queens and two kings.

Bingel [31]

Given:

If you are dealt 4 cards from a shuffled deck of 52 cards.

We need to determine the probability of getting two queens and two kings.

Probability of getting two queens and two kings:

The number of ways of getting two queens is $4C_2$

The number of ways of getting two kings is $4C_2$

Total number of cases is $52C_4$

The probability of getting two queens and two kings is given by

$\text {probability}=\frac{\text {No.of fanourable cases}}{\text {Total no.of cases}}$

Substituting the values, we get;

$probability=\frac{4C_2 \cdot 4C_2}{52C_4}$

Simplifying, we get;

$probability=\frac{6 (6)}{270725}$

$probability=\frac{36}{270725}$

$probability=0.000133$

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3 years ago