Find the Area of the figure below, composed of a parallelogram and two semicircles.

I need help finding the Answer to #1 and #2

kaheart [24]

#3 is even I really hope this works

3 0

3 years ago

Not? Is t(n)=2⋅3n

Vera_Pavlovna [14]

Answer:

Step-by-step explanation: I am used to describing arithmetic sequences like this:

3

,

5

,

7

,

.

3,5,7,...3, comma, 5, comma, 7, comma, point, point, point

But there are other ways. In this lesson, we'll be learning two new ways to represent arithmetic sequences: recursive formulas and explicit formulas. Formulas give us instructions on how to find any term of a sequence.

To remain general, formulas use

n

nn to represent any term number and

a

(

n

)

a(n)a, left parenthesis, n, right parenthesis to represent the

n

th

n

th

n, start superscript, start text, t, h, end text, end superscript term of the sequence. For example, here are the first few terms of the arithmetic sequence 3, 5, 7, ...

4 0

3 years ago

How many square feet of outdoor carpet will we need for this hole? Iready quiz pic

makvit [3.9K]

Lol I was looking for help for this question but I couldn't find it so I had to figure it out my self and the answer is 40

4 0

3 years ago

Read 2 more answers

A lawyer charges $100 per month for a client. The lawyer also charges an hourly rate of $75 for work done. How many hours does t

Eduardwww [97]

Answer:

7 Hours

Step-by-step explanation:

Given The lawyer charges $100 per month for a client.

Also he charges $75 per hour

Let the hours he worked for the client be x

The money the lawyer gets from the hourly charges is $75x

The total money the lawyer charged is $625

total money = monthly charges + hourly charges

625=100 + 75x

75x=525

x=525/75=7

Therefore the lawyer has to work for 7 hours to charge $625

7 0

3 years ago

It is known that the population variance equals 484. With a .95 probability, the sample size that needs to be taken to estimate

Hitman42 [59]

Answer:

The minimum sample size is n = 75 so that the desired margin of error is 5 or less.

Step-by-step explanation:

We are given the following in the question:

Population variance = 484

Standard deviation =

$\sigma^2 = 484\\\sigma =\sqrt{484} = 22$

Confidence level = 0.95

Significance level = 0.05

Margin of error = 5

Formula:

Margin of error =

$E = z\times \dfrac{\sigma}{\sqrt{n}}\\\\n = (\dfrac{z\times \sigma}{E})^2$

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

Putting values, we get

$E\leq 5\\\\1.96\times \dfrac{22}{\sqrt{n}} \leq 5\\\\\sqrt{n} \geq 1.96\times \dfrac{22}{5}\\\\n \geq (1.96\times \dfrac{22}{5})^2\\\\n \geq 74.373$

Thus, the minimum sample size is n = 75 so that the desired margin of error is 5 or less.

3 0

3 years ago