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Ira Lisetskai [31]
3 years ago
5

If b is the midpoint of ac, find bc (ab=3x-1 and ac=8x-20)

Mathematics
1 answer:
lys-0071 [83]3 years ago
4 0
Bc would equal 26. Since ab and bc would equal the same thing, you would add (3x-1) to (3x-1) and equal it to (8x-20) and solve.
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What's the probability of pulling two red cards in a row from a deck of cards?​
monitta

Hey there! I'm happy to help!

Let's say that we don't have jokers. In that case, there are 52 cards, and half of them are red (so 26 are red). The probability of pulling a red card once is 1/2 since half the cards are red.

If we pick one out, there are only 51 total cards left and 25 red cards. So, the probability of picking one again would be 25/51.

We multiply the probabilities of these two events to find the probability of them both happening.

1/2×25/51=25/102

The probability of picking two red cards in a row is 25/102 or around 24.5%.

Have a wonderful day! :D

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3 years ago
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3 years ago
3.
Zanzabum

Answer:

see below

Step-by-step explanation:

y = 8x − 9

y = 4x − 1

Since both equations are equal to y, we can set them equal to each other

8x-9 = 4x-1

Subtract 4x from each side

8x-4x-9 = 4x-4x-1

4x-9 = -1

Add 9 to each side

4x-9+9 = -1+9

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x=2

Now find y

y = 4x-1

y = 4(2)-1

y = 8-1

y = 7

(2,7)

The point of intersection when the 2 lines are graphed is (2,7)

7 0
4 years ago
Read 2 more answers
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Naddik [55]

Answer:

B is the answer

Step-by-step explanation:

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3 years ago
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Answer:

a

Step-by-step explanation:

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3 years ago
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