Answer: 0.3077
Explanation: In a standard deck of cards, there are 52 cards. They are broken down into suits (4 of them: Spades, Hearts, Diamonds, Clubs) of 13 cards each. Each suit has 13 ordinal cards (A, 2 through 10, Jack, Queen, King).
Here we're asked to draw a card at random and find the probability of drawing either a diamond or a 7.
With probability, we look at the fraction of ways we can achieve some condition (the numerator) over the number of ways we can do something (the denominator).
Our denominator here is 52 - the number of cards from which we can pull 1.
Our numerator is both all the diamonds, 13 cards, and all the sevens, 4 cards, but we need to subtract 1 to account for the double counting of the 7 of diamonds.
In all we get: 13+4−1/52=16/52=4/13≈0.3077
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Answer is
3x
Step-by-step explanation:
2*(x+7) = 3x.
Answer: option D.
Step-by-step explanation:
The equation of the line in Slope-intercerpt form is:
Where "m" is the slope of the line and "b" is the intersection of the line with the y-xis.
The slopes of two perpendicular lines are negative reciprocals. Then, you need to find the slope of the line given in the graph, with the formula:
Then, this is:
Then the slope of the other line is:
Substittute the point (3,4) into and solve for "b":
Substituting you get that the equation of this line is:
Answer: 0
Step-by-step explanation: -8+8=0
Use picture math it helps me