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g100num [7]
2 years ago
7

8.)

Mathematics
2 answers:
sweet [91]2 years ago
8 0

Answer:

22.50$

give brainiest

fomenos2 years ago
4 0

Answer:

You Owe $22.50

Step-by-step explanation: All yo do is add up all of the $ That they owe to each person and That is your answer.

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s344n2d4d5 [400]

Answer:

the answer is 96 squared feet

7 0
3 years ago
Read 2 more answers
Consider rolling two fair dice one 3-sided the other 5-sided
Ne4ueva [31]

Since the dice are fair and the rolling are independent, each single outcome has probability 1/15. Every time we choose

1\leq x\leq 3,\quad 1\leq y \leq 5

We have P(X=x)=\frac{1}{3} and P(Y=y)=\frac{1}{5}, because the dice are fair.

Now we use the assumption of independence to claim that

P(X=x, Y=y) = P(X=x)\cdot P(Y=y) =\dfrac{1}{3}\cdot\dfrac{1}{5} = \dfrac{1}{15}

Now, we simply have to count in how many ways we can obtain every possible outcome for the sum. Consider the attached table: we can see that we can obtain:

  • 2 in a unique way (1+1)
  • 3 in two possible ways (1+2, 2+1)
  • 4 in three possible ways
  • 5 in three possible ways
  • 6 in three possible ways
  • 7 in two possible ways
  • 8 in a unique way

This implies that the probabilities of the outcomes of W=X+Y are the number of possible ways divided by 15: we can obtain 2 and 8 with probability 1/15, 3 and 7 with probability 2/15, and 4, 5 and 6 with probabilities 3/15=1/5

8 0
2 years ago
If f(x)= 5x, what is f^-1(x)?
Helen [10]

Step-by-step explanation:

f( x) {}^{ - 1}  \\ f(x) = 5x \\ y = 5x \\ x = 5y \\ y =  \frac{x}{5}  \\ f(x) {}^{ - 1}  =  \frac{x}{5}

8 0
2 years ago
Each morning papa notes the birds feeding on his birdfeeder. So far this month he has seen 59 blue jays, 68 black crows, 12 red
UNO [17]
I think it would be A pls mark brainliest
5 0
2 years ago
−2x=x^2 minus 6, <br> Rewrite the equation by completing the square. please answer
Paul [167]

Answer:

(x+1)^{2} -5

Step-by-step explanation:

-2x=x^{2} -6 \\x^{2} +2x-6\\(\frac{b}{2}) ^{2} =(\frac{2}{2}) ^{2} =1^{2} =1\\so, (x^{2} +2x+1)-6+1\\ x^{2} +2x+1=(x+1)^{2} \\-6+1=5\\(x+1)^{2} -5

Sorry it took so long

4 0
2 years ago
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