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Yuliya22 [10]
3 years ago
13

13x² -7x -8 how to solve this​

Mathematics
1 answer:
irakobra [83]3 years ago
7 0

Answer:

132x-8

Step-by-step explanation:

I think I might be wrong, but hopefully this is helpful, and yet I still find this confusing.

It's a simplification I don't know if you needed that.

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2 divided by one third
Jobisdone [24]
2 / 1/3
= 2* 3/1
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3X-1=4 THEN 2X= ...?
strojnjashka [21]
3x=4+13x=5x=5/32x=2* 5/32x=10/3
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B
Gnesinka [82]

Answer:

13

Step-by-step explanation:

We know that a^2+b^2 = c^2  where a and b are the legs and c is the hypotenuse

5^2 + 12^2 = c^2

25+144 = c^2

169 = c^2

Taking the square root of each side

sqrt(169) = sqrt(c^2)

13 =c

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3 years ago
In Stephen King’s short story collection “Skeleton Crew” there is a story called “The Raft”. In this story, four college friends
USPshnik [31]

Answer:

A) r=2t

B) 4\pit²

C) 4\pi(30)² which will end up being 11310 in²

Step-by-step explanation:

A) If it increases 2 inches every minute, you would take that and put it with the t, aka time.

B) A=\pir² which will translate into A=\pi(2)²

C) You take the half-hour, which is 30 minutes, and translate that into t then place that into your calculator and get an answer of 11,309.73 and then round up to the whole number

7 0
3 years ago
What is the probability that a five-card poker hand contains exactly one ace?.
spin [16.1K]

The probability of selecting exactly one ace is its likelihood

The probability that a five-card poker hand contains exactly one ace is 29.95%

<h3>How to determine the probability?</h3>

There are 4 aces in a standard deck of 52 cards.

The probability of selecting an ace would be:

p = 4/52

Also, there are 48 non-ace cards in the standard deck

So, the probability of selecting a non-ace after an ace has been selected is:

p = 48/51

The probability of selecting a non-ace up to the fifth selection are:

  • After two cards have been selected is:  47/50.
  • After three cards have been selected is:  46/49.
  • After four cards have been selected is:  45/48.

The required probability is then calculated as:

P(1 Ace) = n * (4/52) * (48/51) * (47/50) * (46/49) * (45/48)

Where n is the number of cards i.e. 5

So, we have:

P(1 Ace) = 5 * (4/52) * (48/51) * (47/50) * (46/49) * (45/48)

Evaluate

P(1 Ace) = 0.2995

Express as percentage

P(1 Ace) = 29.95%

Hence, the probability that a five-card poker hand contains exactly one ace is 29.95%

Read more about probability at:

brainly.com/question/25870256

8 0
3 years ago
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