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3 years ago

2. Find the perimeter and area of a square with a 7-ft side.

Mathematics

1 answer:

Rina8888 [55]3 years ago

7 0

Answer:

Step-by-step explanation:

Perimeter 4L = 28

Area L^2 = 49

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A Web music store offers two versions of a popular song. The size of the standard version is 2.4 megabytes (MB). The size of the

ANEK [815]

Answer:

50.mb

Step-by-step explanation:

7 0

3 years ago

Write the fraction in decimal notation 3 1/100

Nesterboy [21]

3.01 is the decimal notation for 3 1/100. You keep the three in the ones place. 1/100 is a decimal. If you use long division or a calculator, you can see that 1/100 is 0.01.

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3 years ago

Paul made 7 homemade pizzas. He used 3/4 of a cup of sauce for each pizza. How many cups of sauce did he use altogether?

hodyreva [135]

Answer:

5 1/4 cups

Step-by-step explanation:

7x3/4= 5 1/4

8 0

2 years ago

Josie and her brother, Sean both have a job after school. For every $5.50 that Josie earns, her brother earns $6.50. On Tuesday,

Mariulka [41]

Answer:

<u>Josie will earn $13.75 and her brother Sean will earn $16.25</u>

Step-by-step explanation:

Given that For every $5.50 that Josie earns, her brother earns $6.50.

Tuesday, they earned $30.00

Using the ratio and the proportional

Josie : Sean : Total

5.5 : 6.5 : 12

x : y : 30

So, x = 5.5 * 30/12 = 13.75

And y = 6.5 *30/12 = 16.25

<u>So, Josie will earn $13.75 and her brother Sean will earn $16.25</u>

7 0

2 years ago

The random variable x is the number of occurrences of an event over an interval of ten minutes. It can be assumed that the proba

zlopas [31]

Answer:

The probability that there are 8 occurrences in ten minutes is

option B. 0 .0771

Step-by-step explanation:

Given:

Random Variable = x

Mean number of occurrences in ten minutes is 5.3.

The probability of an occurrence is the same in any two time periods of an equal length

To Find:

The probability that there are 8 occurrences in ten minutes = ?

Solution:

Let X be the number of occurrences of the event X

$X \sim {Pois} (\lambda)$

$\lambda = E(X) = 5.3$

Possion of distribution is given by ,

$P(X=x) = \frac{e^{- \lambda} \lambda^{x}}{x!}$

Substituting the values,

$P(X=8) = \frac{e^{- 5.3} 5.3^{8}}{8!}$

$P(X=8) = \frac{(0.004994) ( 622596.904)}{40320}$

$P(X=8) = \frac{(3109.24894)}{40320}$

P(X=8) = 0.0771

3 0

2 years ago