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3 months ago

What is the probability of drawing a jack from a standard deck of cards, replacing it,shuffling, then drawing an ace?

Mathematics

1 answer:

xz_007 [3.2K]3 months ago

6 0

- We have 52 cards in a deck of cards.

- We have 4 cards of the same number (4 jack, 4 aces...).

Probability of drawing a jack = 4/52

Probability of drawing a jack followed by an ace =(4/52)*(4/52)=0.00592

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What is meant by a system of linear equations?

photoshop1234 [79]

It’s a grouping of linear(straight line)equations that deal with the same variables. Hope that helped?

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2 years ago

Could anyone help me out, it’s would mean a lot.

SIZIF [17.4K]

Answer:

$x = 19$

Step-by-step explanation:

If two lines are perpendicular, they create 4 90° angles. Meaning, in this case, that m<DBC = 90 and m<DBA = 90.

We're given that m<DBE = 2x - 1 and that m<CBE = 5x - 42.

The sum of angles DBE and CBE = m<DBC = 90°

We can add the two angles and set it equal to 90 to find x

$2x - 1 + 5x - 42 = 90\\7x - 43 = 90\\7x = 133\\x = \frac{133}{7} =19$

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2 years ago

Let y = safe load in pounds and x = length in feet of a horizontal beam. A constant of proportionality k exists such that y=k/x

Contact [7]

Answer:

Option c. 30,000

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent an inverse variation if it can be expressed in the form $y*x=k$ or $y=k/x$

Let

y ----> safe load in pounds

x ----> length in feet of a horizontal beam

we have

For $x=15\ feet, y=2,000\ pounds$

Remember that

$k=y*x$

substitute

$k=2,000*15=30,000$

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2 years ago

Put the following values in order from LEAST to GREATEST: -6,1-8], 2, 131, 5

MrRissso [65]

Answer:

-6, 1.8 , 2, 5, 131

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

ILL MARK U BRAINLIEST

alex41 [277]

Answer: the answer is

this would be c 12 because it is the proper proportionality that relates to the number of cupcakes

plz brainiest

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2 years ago