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
ivann1987 [24]
3 years ago
15

I NEED HELP PLEASE HELP ME

Mathematics
1 answer:
Aloiza [94]3 years ago
5 0
Answer:
294.14cm^2

Explanation:

First find the area of the whole piece of paper:
32*14=448

Then find the area of the two semicircles, semicircle + semicircle = 1 circle:

Area of a circle= (radius squared)(pi):
(7^2)(3.14) = 153.86

Subtract the area of the two semicircles from the whole paper area:
448-153.86 = 294.14


I hope this isn’t too confusing :)


You might be interested in
Solve the following Equations<br> A)x-1=5 <br> B)2m-1=9
Allisa [31]
For some reason its not letting me send you it so like here is a pic

6 0
3 years ago
Read 2 more answers
Use the normal distribution and the given sample results to complete the test of the given hypotheses. Assume the results come f
AlladinOne [14]

Answer:

z=\frac{0.64 -0.5}{\sqrt{\frac{0.5(1-0.5)}{75}}}=2.43  

Now we can calculate the p value with the following probability:

p_v =P(z>2.43)=0.0075 \approx 0.008  

Since the p value is lower than the significance level we have enough evidence to reject the null hypothesis and we can conclude that the true proportion for this case is higher than 0.5

Step-by-step explanation:

Data given and notation

n=75 represent the random sample taken

\hat p=0.64 estimated proportion of interest

p_o=0.5 is the value that we want to test

\alpha=0.05 represent the significance level

Confidence=95% or 0.95

z would represent the statistic

p_v represent the p value

System of hypothesis

We want to verify if the true proportion is higher than 0.5:  

Null hypothesis:p =0.5  

Alternative hypothesis:p > 0.5  

The statistic is given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing the info given we got:

z=\frac{0.64 -0.5}{\sqrt{\frac{0.5(1-0.5)}{75}}}=2.43  

Now we can calculate the p value with the following probability:

p_v =P(z>2.43)=0.0075 \approx 0.008  

Since the p value is lower than the significance level we have enough evidence to reject the null hypothesis and we can conclude that the true proportion for this case is higher than 0.5

7 0
3 years ago
How do i do this problem 0.25(x+4)-3=28
KiRa [710]
Distribute the .25 to get .25x + 1 - 3 = 28

Then simplify to get .25x - 2 = 28

Move the two to the right to get .25x = 30

Then divide to leave x: 30 / .25 = 120

X = 120
6 0
3 years ago
Read 2 more answers
Calculate the total installment price the carrying charges in the number of months needed to save them money at the monthly rate
masha68 [24]

Answer:

  • the total installment is $936
  • the carrying charges are $186
  • the monthly rate to buy the items are  19.23 or 20 months

Step-by-step explanation:

$39 for 24 months comes to ...

$39 × 24 = $936

The "carrying charges" are the difference between the cash price and the installment price:

$936 -750 = $186

 Saving at the rate of $39 per month, it would take ...

  $750/$39 = 19.23 months   about 20 months to save up the cash price.

Often, such savings would come from a once-a-month paycheck, so it would take more than 19 such paychecks to save the required amount.

hope it will help :)

3 0
3 years ago
PLZ HELP WILL MAKE BRAINLEIST
Jlenok [28]
(1,2)
The solution is where the lines intersect so you can see they intersect at (1,2)
3 0
2 years ago
Read 2 more answers
Other questions:
  • What is 64x64? and I know if you use a calculator =)
    13·1 answer
  • Make K the subject of the formula <br><img src="https://tex.z-dn.net/?f=t%20%3D%20%20%5Cfrac%7Bmu%20%7B%7D%5E%7B2%7D%20%7D%7Bk%7
    5·1 answer
  • Is 10 greater than 10.01 or less than​
    7·2 answers
  • Could use some help on 22
    14·1 answer
  • Nidhi is creating a rectangular garden in her backyard. The length of the garden is 10 feet. The perimeter of the garden must be
    13·1 answer
  • Patrick does not want to change his cost per
    8·1 answer
  • In the inequality -9 ≤ 9, which number appears farther left on a number line and why?
    10·2 answers
  • A line passes through the point (8, -6) and has a slope of -5/2
    8·1 answer
  • If u understand this May u please help me
    9·1 answer
  • Find the measure of angle A
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!