3 years ago

The equation V = πr^2

Mathematics

1 answer:

skad [1K]3 years ago

7 0

Answer:

I believe this would be the correct answer.

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Ricky has 3/4 of a bag of Skittles. He wants to split the rest between between his 5 friends. What fraction of the bag will each

Lena [83]

Divide 3/4 by 5:

3/4 / 5 = 3/4 x 1/5 = 3/20

Each friend gets 3/20

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3 years ago

The minimum monthly payment for Andrew's credit card is 2% of his balance or $20, whichever is higher. If Andrew's balance at th

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Hi there

2%=0.02

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Sveta_85 [38]

Answer:

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Step-by-step explanation:

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2 years ago

It costs $430 to rent the cottage for the weekend.Last year it cost $400.What percentage increase is this?

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Find the center, vertices, and foci for the ellipse 25x^2 + 64y^2 = 1600

Alisiya [41]

Answer:

The answer to your question is below

Step-by-step explanation:

Data

Equation 25x² + 64y² = 1600

Process

1.- Divide all the equation by 1600

25x²/1600 + 64y²/ 1600 = 1600/1600

-Simplify

x²/64 + y²/ 25 = 1

2.- Equation of a horizontal ellipse

$\frac{x^{2} }{a^{2}} + \frac{y^{2}}{b^{2}} = 1$

3.- Find a, b and c

a² = 64 a = 8

b² = 25 b = 5

-Calculate c with the Pythagorean theorem

a² = b² + c²

-Solve for c

c² = a² - b²

-Substitution

c² = 8² - 5²

-Simplification

c² = 64 - 25

c² = 39

-Result

c = √13

4.- Find the center

C = (0, 0)

5.- Find the vertices

V1 = (-8, 0) V2 = (8, 0)

6.- Find the foci

F1 = (-√13, 0) F2 = (√13, 0)

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3 years ago