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Ostrovityanka [42]

2 years ago

12

A bag contains 77 apples and 55 oranges. if you select 66 pieces of fruit without looking, how many ways can you get 66 apples

?

1 answer:

yuradex [85]2 years ago

6 0

77C55*55 = (77! X 66!/ 2) = 139,755

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Hii! I need some help, would anyone mind helping me?

Kisachek [45]

Step-by-step explanation:

${x}^{2} - 14x - 25 {y}^{2} + 100y = 76$

Factor by grouping,

$( {x}^{2} - 14x) - (25 {y}^{2} - 100y) = 76$

Complete the square, with the x variables,

$( {x}^{2} - 14x + 49) - (25 {y}^{2} - 100y) = 125$

Factor out 25 for the y variables

$( {x}^{2} - 14x + 49) - 25( {y}^{2} - 4y) = 125$

Complete the square

$( {x}^{2} - 14x + 49) - 25( {y}^{2} - 4y + 4) = 25$

Simplify the perfect square trinomial

$(x - 7) {}^{2} - 25(y - 2) {}^{2} = 25$

Make the right side be 1 so divide everything by 25.

$\frac{(x - 7) {}^{2} }{25} - (y - 2) {}^{2} = 1$

Here our center is (7,2).

8 0

2 years ago

Stuck on this question. Help appreciated!!

marta [7]

Answer:

the missing is 4.98

Step-by-step explanation:

4 0

2 years ago

FOR AN EXAM DUE TODAY!!!<br><br> Simplify the polynomial.<br> 3x – 2x2 + 4 – x2 + x<br> +<br> -

Mashutka [201]

Answer:

${ \tt{ \blue{ - {3x}^{2} + 4x + 4 }}}$

Step-by-step explanation:

${ \tt{3x - {2x}^{2} + 4 - {x}^{2} + x }} \\$

» Collect second degree terms (x² coefficients) together and first degree terms (x coefficients) and constants

$= { \tt{( - 2 - 1) {x}^{2} + (3 + 1)x + 4 }} \\ = { \boxed{ \tt{ \: - {3x}^{2} + 4x + 4}}}$

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2 years ago

What is the volume of the rectangular prism? top is 40 cm2, side, 30 cm2, side 48 cm2

babymother [125]

57600

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3 years ago

What is the relationship between the number of tickets,n, and the total cost of the tickets, c?

enot [183]

Answer:

Step-by-step explanation:

It c just took the test

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2 years ago