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3 years ago

8

A random card is drawn from a full deck of 52 cards. What is the probability that a card drawn is one of the 4 queens in the dec

k? Express the answer as a decimal and round to 3 decimal places

1 answer:

IRINA_888 [86]3 years ago

5 0

4/52 = 2/27 After you divide that you get .074 after you round it to the three places.

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Solve this equation: y-3x+15=10

Jlenok [28]

Answer:

10=10

Step-by-step explanation:

y-3x+15=10

y=3x-15+10

y=3x-5

subtitute y=3x-5 in the above equation:

3x-5-3x+15=10 (3x will be eliminated with -3x)

-5+15=10

10=10

(i hope this is the way you want the answer but at least I think it is correct)

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3 years ago

Prove that: 5^31–5^29 is divisible by 100.

ANEK [815]

Answer:

See explanation

Step-by-step explanation:

Consider the expression

$5^{31}-5^{29}$

First, factor it:

$5^{31}-5^{29}=5^{29}\cdot(5^2-1)=5^{29}\cdot (25-1)=24\cdot 5^{29}$

Note that

$100=25\cdot 4$

Then

$5^{31}-5^{29}=24\cdot 5^{29}=6\cdot 4\cdot 25\cdot 5^{27}=6\cdot 100\cdot 5^{27}$

This shows that number 100 is a factor of the expression $5^{31}-5^{29}$ and, therefore, this expression is divisible by 100.

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3 years ago

What is the equation of the line that passes through the point (-2, 0) and has a slope of -2?

liq [111]

Answer:

y=-2(x+2)

Step-by-step explanation:

plug in(-2,0) into y-y1=m(x-x1)

y=m(x+2)

slope =m=-2

y=-2(x+2)

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2 years ago

What is x for this problem? i really need help. will offer a lot of points

Umnica [9.8K]

X should equal 52. Sorry if I am wrong.

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3 years ago

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What is the x-intercept of the line 5x+2y=10

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5x is the x-intercept.

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3 years ago

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