1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
UkoKoshka [18]
3 years ago
8

Find the area if the figure using 3.14

Mathematics
1 answer:
Veronika [31]3 years ago
8 0
The area of the square is 9, the area of all the semi circles added together is 15.7, when you add them together you get 24.7
You might be interested in
Need help ASAP! due soon
Pani-rosa [81]

Answer:if this helps it’s -3/2 and the slope is 8 :) C is the best answer!

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Which shows a difference of squares?
Romashka [77]
Difference of two squares will be 

16y^2 -x^2 = (4y -x)(4y +x)

so the second choice 
6 0
3 years ago
Read 2 more answers
Can someone help me please <br> And please show your work
kondaur [170]
A)1:2
b)21:2
c)6:44 or 3:22
d)2:5
5 0
3 years ago
A forester studying the effects of fertilization on certain pine forests in the Southeast is interested in estimating the averag
ahrayia [7]

Answer:

P(-2 \leq \bar X -\mu \leq 2)

If we divide both sides by \frac{\sigma}{\sqrt{n}} we got:

P(\frac{-2}{\frac{4}{\sqrt{9}}}\leq Z \leq \frac{2}{\frac{4}{\sqrt{9}}})

And we can use the normal distribution table or excel to find the probabilites and we got:

P(-1.5 \leq Z \leq 1.5)= P(ZStep-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the area of a population, and for this case we know the distribution for X is given by:

X \sim N(M,4)  

Where \mu=M and \sigma=4

We select a a sample of n =4 and since the distribution for X is normal then we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And we want to find this probability:

P(-2 \leq \bar X -\mu \leq 2)

If we divide both sides by \frac{\sigma}{\sqrt{n}} we got:

P(\frac{-2}{\frac{4}{\sqrt{9}}}\leq Z \leq \frac{2}{\frac{4}{\sqrt{9}}})

And we can use the normal distribution table or excel to find the probabilites and we got:

P(-1.5 \leq Z \leq 1.5)= P(Z

8 0
3 years ago
What is the slope of a line perpendicular to the line whose equation is x-3y= -18 Fully simplify your answer.
qwelly [4]

Answer:

-3

Step-by-step explanation:

Isolate -3y by subtracting x from both sides

-3y = -18 - x

Divide everything by -3

y = 6 + 1/3x

Slope is 1/3, and perpendicular lines have the reverse reciprocal slope, so our slope is -3

7 0
1 year ago
Other questions:
  • A ball is dropped from the top of the stairs and reaches a velocity of 25 m/s, in 4 seconds. What is the acceleration of the bal
    10·1 answer
  • Which shows 552 − 452 being evaluated using the difference of squares method?
    11·2 answers
  • What is a limited liability company?
    10·1 answer
  • 7-x+3=9x+10<br> x=?<br><br> please help
    8·2 answers
  • A recipe calls for 2 eggs to make 10 pancakes.How many eggs will you need to make 35 pancakes?
    5·2 answers
  • If there are 31,536,000 seconds in one year how many seconds are in a millennium
    9·1 answer
  • 7= -5x
    10·2 answers
  • Please help! Brainliest answer! thank you!1
    15·2 answers
  • 3x+1. HELP ME!!!!!! I have this question as a quiz 4 u all.
    14·2 answers
  • Area triangles? it says show work so pls do
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!