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Finger [1]
3 years ago
9

Use the FOIL Method to find (k+5)(k−1).

Mathematics
2 answers:
romanna [79]3 years ago
8 0
The answer would be k^2 + 4K -5
Elenna [48]3 years ago
4 0

Answer:

(k+5)(k−1)=k2+4k−5

Step-by-step explanation

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Here is a table showing all 52 cards in a standard deck.
stepan [7]

We want to find the probability of drawing 3 red cards from a deck of 52 cards.

We will find that the probability is P = 0.1176

Let's see how to get that probability.

We know that a standard deck of 52 cards has:

  • 26 red cards
  • 26 black cards

And we assume that all the cards have the same probability of being drawn. Then the probability of drawing a red card in the first draw is just the quotient between the number of red cards and the total number of cards, we get:

p₁ = 26/52

For the second draw, we compute the probability in the same way, but now there are 25 red cards in the deck and 51 cards in total (because one is already drawn). Then the probability in this case is:

p₂ = 25/51

Finally, for the third card, we have 24 red cards and 50 total cards, then the probability will be:

p₃ = 24/50

The joint probability (the probability of drawing the 3 red cards in the same event) is the product of the individual probabilities.

P = p₁*p₂*p₃ = (26/52)*(25/51)*(24/50) = 0.1176

If you want to learn more, you can read:

brainly.com/question/10224828

8 0
3 years ago
Determine which expression(s) is in its simplified form. Select all situations that apply.
PolarNik [594]
5/8, 1/9....these are in simplified form because they cant be reduced

12/15 simplifies to 4/5
4/8 simplifies to 1/2
9/18 simplifies to 1/2

3 0
3 years ago
Read 2 more answers
9. Triangle Construction pays Square Insurance $5,980
xxTIMURxx [149]

The triangle pay $32 more for that day than it paid per day during the first period of time.

Step-by-step explanation:

The given is,

              Triangle Construction pays Square Insurance $5,980

               To insure a construction site for 92 days

               To extend the  insurance beyond the 92 days costs $97 per day

               Triangle extends the insurance by 1 day

Step:1

              Insurance per day from the 92 days period,

                                                                           = \frac{Total insuratio for 92 days}{Period}

               Where, Total insurance for 92 days = $ 5,980

                                                               Period = 92 days

               From the values, equation becomes,

                                                                            =\frac{5980}{92}

                                                                           = $ 65 per day

Step:2

              Insurance per day after the 92 days,

                                                                           = $ 97

               Amount Pay for that day than it paid per day during the first period of time,

                                                                            =(97-65)

                                                                           = $32

Result:

             The triangle pay $32 more for that day than it paid per day during the first period of time, if  the Triangle Construction pays Square Insurance $5,980 to insure a construction site for 92 days and to extend the  insurance beyond the 92 days costs $97 per day.

                                                                         

8 0
3 years ago
Look at ΔABC and its 90° rotation.<br>  <br> If AB is 8 inches long, what is the length of A'B' ?
chubhunter [2.5K]

Because the triangle is only rotated, AB and A'B' would be equal. 8 in.

3 0
3 years ago
Read 2 more answers
If the mean of 20, y, 10,5,15 is 22 find the value of y​
QveST [7]
Looks like 14.4 because you have to add them all together and divide by the total numbers
(20+22+10+5+15)/ 5
8 0
2 years ago
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