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Fofino [41]
3 years ago
14

Help me please i’m going back to math soon and only have a few minutes

Mathematics
1 answer:
drek231 [11]3 years ago
7 0

It's 0,3 hope this is right!!!

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Y= 3x+6; (4,7) in slop intercept form
Neko [114]

What we are given:

*equation

* intercepts (4,7)

All we have to do is plug in what we know:

Y= 3x + 6

x=4 and y= 7

NEW EQUATION:

7= 3(4) + 6

7= 12+6

7= 18

then divide 18 by 7

18/7= 2.5

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Long division, x^3-2x^2+1 divided x^2-x+1
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Step-by-step explanation:

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What is 175% of 300​
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525

Step-by-step explanation:

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In the Ardmore Hotel, 20 percent of the guests (the historical percentage) pay by American Express credit card. (a) What is the
xxMikexx [17]

Answer:

(a) The expected number of guests until the next one pays by American Express credit card is 4.

(b) The probability that the first guest to use an American Express is within the first 10 to checkout is 0.0215.

Step-by-step explanation:

The random variable <em>X</em> can be defined as the number of guests until the next one pays by American Express credit card

The probability that a guest paying by American Express credit card is, <em>p</em> = 0.20.

The random variable <em>X</em> follows a Geometric distribution since it is defined as the number of trials before the first success.

The probability mass function of <em>X</em> is:

P(X=x)=(1-p)^{x}p;\ x=0,1,2,3...,\ 0

(a)

The expected value of a Geometric distribution is:

E(X)=\frac{1-p}{p}

Compute the expected number of guests until the next one pays by American Express credit card as follows:

E(X)=\frac{1-p}{p}

         =\frac{1-0.20}{0.20}

         =4

Thus, the expected number of guests until the next one pays by American Express credit card is 4.

(b)

Compute the probability that the first guest to use an American Express is within the first 10 to checkout as follows:

P(X=10)=(1-0.20)^{10}\times0.20

                 =0.1073741824\times 0.20\\=0.02147483648\\\approx0.0215

Thus, the probability that the first guest to use an American Express is within the first 10 to checkout is 0.0215.

3 0
3 years ago
What is the ratio of the number of days in the week that do not begin with the letter T to the total numbers of days in the week
Rom4ik [11]

Answer:

The answer is 5 over 7

Step-by-step explanation:

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2 years ago
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