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Olenka [21]
3 years ago
5

A playground is on a rectangular pad that can be mulched. The park service just bought a load of mulch and they bought 60 square

feet of mulch. If the length of the rectangular pad is 8 feet, what is the width?
Mathematics
1 answer:
Gekata [30.6K]3 years ago
3 0
The width of the rectangular pad is 7.5 feet.
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The random variable X is exponentially distributed, where X represents the time it takes for a person to choose a birthday gift.
Karolina [17]

Answer:

0.685 = 68.5% probability that X is less than 30 minutes

Step-by-step explanation:

Exponential distribution:

The exponential probability distribution, with mean m, is described by the following equation:

f(x) = \mu e^{-\mu x}

In which \mu = \frac{1}{m} is the decay parameter.

The probability that x is lower or equal to a is given by:

P(X \leq x) = \int\limits^a_0 {f(x)} \, dx

Which has the following solution:

P(X \leq x) = 1 - e^{-\mu x}

If X has an average value of 26 minutes

This means that m = 26, \mu = \frac{1}{26}

What is the probability that X is less than 30 minutes?

P(X \leq 30) = 1 - e^{-\frac{30}{26}} = 0.685

0.685 = 68.5% probability that X is less than 30 minutes

8 0
3 years ago
What two numbers multiply to get 45 but add to get -12
777dan777 [17]
-15 times 3 and -15+3
8 0
3 years ago
Dean and Lisa both found deals online for movie tickets. Dean bought 4 movie tickets for $39.80. Lisa bought 6 movie tickets for
lara [203]

Answer:

2.1$

Step-by-step explanation:

46.50/6 = 7.75

39.80/4 = 9.85

9.85 - 7.75 = 2.1

Hopefully this helps you :)

pls mark brainlest ;)

8 0
3 years ago
Read 2 more answers
What is the difference between stem and leaf plot and dot plot?
antiseptic1488 [7]

Stem-and-Leaf-plot represents data by separating each value into two parts. Dot plot uses a graph in which each data value is plotted as a point along a horizontal scale of values. The difference is Dot Plots use graphs to organize data and Stem-and-Leaf plot separates the data into two parts

6 0
3 years ago
Ended up with 7 7 quarters. Which expression equals the number of dollars Monique spent on the book?
shtirl [24]

Answer:

6.25-1.75

Step-by-step explanation:

Step-by-step explanation:

Monique had 6 dollars. She found 25 cents and then bought a book

25 cents = 0.25 dollars

Total dollar she had= 6 + 0.25= 6.25 dollars

Let x be the cost of a book

She ended up with 7 quarters. Convert quarter into dollars

1 quarter = 0.25 dollars

7 quarters = 7 times 0.25=1.75 dollars

So she ended up with 1.75 dollars

Amount she had at the beginning - the cost of book = amount ended up

Number of dollars spent on the book = Amount she had - amount ended

Number of dollars spent on the book=

6.25-1.75

6 0
3 years ago
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