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shusha [124]
3 years ago
7

In a standard deck of cards there are 13 spades, 13 clubs, 13 hearts, and 13 diamonds. The spades and the clubs are black and th

e hearts and the diamonds are red.
If two cards are chosen at random from a deck, one at a time, and replaced after each pick, what is the probability that a black card is chosen first and a heart is chosen second?

A- 1/8
B- 1/2
C- 2/3
D- 3/4
Mathematics
1 answer:
Usimov [2.4K]3 years ago
4 0
A 1/8.
hope this helps
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jonny [76]

Answer:

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4/10 is less than 2/3

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5 0
3 years ago
Convert 3.521 g to ___ mg
inna [77]

To convert any unit to it's "milli-" form always multiply the given value by 1000. The new value will be the value of in the "milli-" form.

The question asked to us is to convert 3.521 g to mg (or milligram). Thus, all that we need to do is to multiply 3.521 with 1000 and we will get the corresponding value in milligrams. Thus, in mg, 3.521 g is:

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6 0
3 years ago
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2.) I am a two-digit number that can be referred to as a perfect square. The sum of my two digits is 10. What number am I?
Scorpion4ik [409]

Answer: 64

Step-by-step explanation:

By definition, a perfect square is the square of a whole number.

The information given in the problem that you must keep on mind is:

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- The number is a perfect square ( Is obtained by squaring a whole number).

- The sum of its two digits is 10.

The number 64 is formed by the digit 6 and the digit 4. The sum of both digits is:

6+4=10

The number 64 can be written as:

64=8*8=8^2

Then, it is perfect square.

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3 years ago
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Colt1911 [192]

Answer:

c

Step-by-step explanation:

6 0
3 years ago
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Iteru [2.4K]

Answer:

B2/25

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