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Advocard [28]
3 years ago
15

Megan and Rosa are throwing sandbags during a workout. Megan's farthest throw measured 8.9 meters. Rosa's farthest throw measure

d 10.05 meters. How much further did Rosa throw the sandbag than Meghan?
Mathematics
1 answer:
ankoles [38]3 years ago
6 0
10.05-8.9=1.15. Rosa threw it 1.15 meters farther than Meghan
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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
Tracy's gross pay is $748.25. Her deductions amount to $234.56. What is
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Answer:

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Step-by-step explanation:

^^^^

Subtract 748.25 by 234.56 and you get

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Answer:

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Step-by-step explanation:  78*9 equals 702.  She sold 4 less than that so you need to subtract 4.  702-4=698 apples Berta sold.

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3 years ago
A grill at a barbecue restaurant will be used to cook sausage links that are 2 lbs and briskets that are 6 lb each. No more than
barxatty [35]

Answer:

b. 2x+6y≤120

Step-by-step explanation:

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3 years ago
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PLEASE HELP WILL GIVE BRAINLIEST Which of the following scale factors will result in an enlargement? A. k &lt; –1 B. –1 &lt; k &
Sergio [31]

Answer: OPTION A.

Step-by-step explanation:

By definition, a dilation can be an enlargement or a reduction of the shape.

An enlargement is when dilation creates a larger image and a reduction is when dilation creates a smaller image.

When, the scale factor is greater than 1, the image is an enlargement and when the scale factor is between 0 and 1, the image is a reduction.

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Knowing this, we can say that the scale factor that will result in an enlargement is:

k

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