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Troyanec [42]
3 years ago
15

A deck of 40 cards contains 20 blue and 20 red cards. Each color has cards numbered 1 to 20.

Mathematics
1 answer:
Marina CMI [18]3 years ago
6 0

Answer:

A red 5 is chosen from the deck. The card is put back into the deck and the a red card is chosen.

Step-by-step explanation:

An independent event is one whose outcome is not dependent on any other event. There are two types of cards in the deck. If a red card is selected it will be from the series 1 - 20, if the card is put back into deck and then again a red card is selected it will be again from the series 1 - 20. This is an independent event since its outcome is same irrespective of the events.

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If possible, prove that AB||CD. If not possible, show and explain why​
Romashka-Z-Leto [24]

Answer:

AB || CD

Step-by-step explanation:

Remember that vertical angles are always equal/ congruent to each other

Since 108° is vertical to angle S, angle S also equals 108°

Since a line is equal to 180°, and you now know that S equals 108°, you would subtract 180 by 108 to get line RT.

180-108= 71°

By default, line VW also equals 71° (you are repeating the same progress you did to get RT)

The angle vertical to <V is equal to 134°, so angle V also equals 134°

180-134 gives you the answer to the angle by 134 and V, they should equal 46°

Corresponding angles equal each other, so angle R is also 134°, and by default the other numbers are equal to to what you did at the top right

Once again, since corresponding angles are equal to each other, you would automatically have the same answers for the bottom line;

the outermost angles equal 134° and the innermost angles equal 46°

8 0
3 years ago
A bag contains 4 red, 5 blue, and 6 green marbles: ​One blue marble is selected and NOT replaced. If a 2nd marble is drawn, what
cupoosta [38]

Answer:

2/7

Step-by-step explanation:

To find the this first you need the total number of marbles minus one since the blue marble was taken.

4+5+6-1=14

after one blue marble being picked there are 4 blue left, so the fraction is

4/14 and after being simplified it is 2/7

8 0
3 years ago
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Find the slope of the line.
lawyer [7]

Answer:

C

Step-by-step explanation:

Well You can tell right away its a positive line since its rising from left to right so the answer has to be positive

If the slope were to be 4 the line would be a Little more titleted becuasea slope of 4 is going up 4 and going tot he right 1.

ANd you can’t heck from any given point and just try all the positivw possibilties.

Or you can just use rise over run, start form a point, rise which means go up until you reach the second layer of the line and just run (go To The right) until you hit a point.

You’ll get 1/4

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malfutka [58]

Answer:

There are no real solutions to this equation because the square root of a negative number is not real. So answer B

Step-by-step explanation:

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