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Sphinxa [80]
3 years ago
7

A 5 divided by 48 lottery involves choosing 5 of the numbers from 1 through 48 and a 4 divided by 35 lottery involves choosing 4

of the numbers 1 through 35. The order in which the numbers are chosen does not matter. Which lottery is easier to​ win? Explain your answer
Mathematics
1 answer:
Anika [276]3 years ago
5 0

Answer:

4/35 lottery is easier to win.

Step-by-step explanation:

For the 5/48 lottery, the winning probability is \frac{5}{48} ≈0.1042

For the 4/35 lottery, the winning probability is \frac{4}{35} ≈ 0.1143

Since \frac{4}{35}  >  \frac{5}{48} , the lottery where one chooses 4 of the numbers 1 through 35 is easier to win.

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Step-by-step explanation:

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What is the value of n in the equation (43)6 = 4n?
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Answer:

64.5

Step-by-step explanation:

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3 years ago
Let a and b be real numbers, where a<b, and let A=(a,a^2)  and B= (b,b^2) The line AB (meaning the unique line that contains
Rom4ik [11]

The slope of the line passing through points A and B is

slope = (<em>b</em> ² - <em>a</em> ²) / (<em>b</em> - <em>a</em>) = ((<em>b</em> - <em>a</em>) (<em>b</em> + <em>a</em>)) / (<em>b</em> - <em>a</em>) = <em>b</em> + <em>a</em>

Since this line passes through (0, 3), its equation would be

<em>y</em> - 3 = (<em>b</em> + <em>a</em>) (<em>x</em> - 0)   ==>   <em>y</em> = (<em>b</em> + <em>a</em>) <em>x</em> + 3

It also passes through (-3/2, 0), so that

<em>y</em> - 0 = (<em>b</em> + <em>a</em>) (<em>x</em> + 3/2)   ==>   <em>y</em> = (<em>b</em> + <em>a</em>) <em>x</em> + 3/2 (<em>b</em> + <em>a</em>)

If these equations describe the same line, then they must have the same slope and <em>y</em>-intercept, so that

3 = 3/2 (<em>b</em> + <em>a</em>)   ==>   <u><em>a</em></u><u> + </u><u><em>b</em></u><u> = 2</u>

It also passes through (<em>a</em>, <em>a</em> ²), so that

<em>a</em> ² = (<em>b</em> + <em>a</em>) <em>a</em> + 3   ==>   <em>a</em> ² = <em>ab</em> + <em>a</em> ² + 3   ==>   <u><em>ab</em></u><u> = -3</u>

Solving for <em>b</em> in the first underlined equation, we get

<em>b</em> = 2 - <em>a</em>

Substituting into the second equation and solving for <em>a</em> gives

<em>a</em> (2 - <em>a</em>) = -3   ==>   2<em>a</em> - <em>a</em> ² = -3   ==>   <em>a</em> ² - 2<em>a</em> - 3 = (<em>a</em> - 3) (<em>a</em> + 1) = 0

==>   <em>a</em> = 3   or   <em>a</em> = -1

==>   <em>b</em> = -1   or   <em>b</em> = 3

Since <em>a</em> < <em>b</em>, we pick <em>a</em> = -1 and <em>b</em> = 3, so the solution is (<em>a</em>, <em>b</em>) = (-1, 3).

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blondinia [14]

Answer:

M

Step-by-step explanation:

M

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