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3 years ago

Fine the perimeter of this rectangle

Mathematics

1 answer:

frosja888 [35]3 years ago

6 0

Answer:

(z) + (z) + (z-1) + (z-1) = 4z-2

Step-by-step explanation:

Perimeter is the sum of all the sides

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Help with question number one please

coldgirl [10]

Answer:

165 hits

Step-by-step explanation:

27.5% of 600 is 600 x 27.5 / 100 = 165

4 0

3 years ago

Using a function on her calculator, Jamie can generate a single random digit by pressing the "Enter" key. She wants to experimen

agasfer [191]

Answer:

We should expect 25 generated digits in order to get a fifth "4"

Step-by-step explanation:

For each generated digit, there are only two possible outcomes. Either it is a four, or it is not. The probability of a digit being a 4 is independent of other digits. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

The expetcted number of trials to get r sucesses, with p probability, is given by:

$E = \frac{r}{p}$

Assume that the calculator will generate a "4" on any given attempt with probability 0.20.

This means that $p = 0.2$

How many total generated digits should we expect in order to get a fifth "4"

This is E when r = 5. So

$E = \frac{r}{p} = \frac{5}{0.2} = 25$

We should expect 25 generated digits in order to get a fifth "4"

6 0

3 years ago

Gina wants to ride the waves at flagship pier in Galveston so she rents a surfboard for five dollars per hour plus an initial or

Margaret [11]

4 hours. add. untill you gvet to your answer

5 0

3 years ago

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Solve <br><br> 9x-14-2x=5(2x-6)

deff fn [24]

$9x-14-2x=5(2x-6)\qquad\text{use distributive property}\\\\(9x-2x)-14=(5)(2x)+(5)(-6)\\\\7x-14=10x-30\qquad\text{add 14 to both sides}\\\\7x=10x-16\qquad\text{subtract 10x from both sides}\\\\-3x=-16\qquad\text{divide both sides by (-3)}\\\\\boxed{x=\dfrac{16}{3}}$

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4 years ago

Solve the Application.

icang [17]

Answer: 1,050 bread crumbs

Step-by-step explanation: First lets add the bread crumbs Jacob and Martha threw in total.

592 + 629 = 1,221 total bread crumbs thrown to the ducks.

If there were 171 bread crumbs left on the floor, and we want to find how many bread crumbs the ducks eat, we can simply subtract 171 from 1,221 bread crumbs.

1,221 - 171 = 1,050 total bread crumbs eaten by the ducks.

3 0

3 years ago

Read 2 more answers