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
Anvisha [2.4K]
2 years ago
8

Please help me with this question

Mathematics
1 answer:
DochEvi [55]2 years ago
6 0
Okay Bright, so the central angle is 36 degrees, so according to the formula you have on the top of the screen, we have to do 36/360, which is 1/10 or 0/1. 

Then we multiply that by the radius squared. 12^2 = 144. 

Finally, we multiply 144 by 0.1, which is 14.4. So our answer is H. 14.4\pi.

Notice that we don't multiply the radius squared by \pi, since the answers are in terms of \pi.

Hope this helped!
You might be interested in
Can someone help me calculate angles? P3
just olya [345]

Answer:

the little box would indicate that it is a 90 degree angle.

4 0
2 years ago
Read 2 more answers
A container holds 2,000 g of water. This is the same as:
liraira [26]
1 g = 1 cm^3 = 1 mL. Hence, 2000 g = 2000 cm^3 = 2000 mL.
3 0
3 years ago
Read 2 more answers
A random sample of the costs of repair jobs at a large muffler repair shop produces a mean of $127.95. and a standard deviation
lubasha [3.4K]

Answer:

127.95-1.685\frac{24.03}{\sqrt{40}}=121.55    

127.95 +1.685\frac{24.03}{\sqrt{40}}=134.35    

So on this case the 90% confidence interval would be given by (121.55;134.35)    

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

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".

\bar X=127.95 represent the sample mean for the sample  

\mu population mean (variable of interest)

s=24.03 represent the sample standard deviation

n represent the sample size  

Solution to the problem

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

In order to calculate the critical value t_{\alpha/2} we need to find first the degrees of freedom, given by:

df=n-1=40-1=39

Since the Confidence is 0.90 or 90%, the value of \alpha=0.1 and \alpha/2 =0.05, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.05,39)".And we see that t_{\alpha/2}=1.685

Now we have everything in order to replace into formula (1):

127.95-1.685\frac{24.03}{\sqrt{40}}=121.55    

127.95 +1.685\frac{24.03}{\sqrt{40}}=134.35    

So on this case the 90% confidence interval would be given by (121.55;134.35)    

8 0
2 years ago
Explain the difference between finding rational zeros and finding all zeros.
r-ruslan [8.4K]

Answer:

see explanation

Step-by-step explanation:

Given the polynomial

p(x)=a_nx^n+a_{n-1}x^{n-1}+a_{n-2}x^{n-2}+...+a_2x^2+a_1x+a_o

The rational zeros are all the possible factors of a_0 dived by all the possible factors of a_n. Therefore we use the rational rots theorem to find all possible rational zeros.

To find all zeros we use the remainder theorem. Thus, we plug in all the rational zeros to determine which ones evaluate to zero. These are the real zeros. We could also use long division to find the remaining zeros as soon as we got the first zero with the remainder theorem.

8 0
3 years ago
Can you help me solve for both questions, and show the step by step process please for the first one I got -1.375 but I don't th
Anna35 [415]

Answer:

What was the problem.

Step-by-step explanation:

5 0
2 years ago
Other questions:
  • Help me please!! As soon as you can!!
    10·1 answer
  • Divide the following :
    8·1 answer
  • You are working hard at the local grocery store each weekend. You have decided to put your money in a compound interest bearing
    9·1 answer
  • A ratio comparing a number to 100
    11·1 answer
  • A culture of bacteria doubles every 2 hours. Is the bacteria growth over time an arithmetic or geometric sequence? Why?
    8·1 answer
  • Two sides of a parallelogram are 8.5 feet and 3.8 feet. The measure of the angle
    13·1 answer
  • Students in 4th and 5th grade took a survey regarding their favorite cafeteria food. What percent of the students selected pizza
    6·1 answer
  • Find the circumference and area of the circle. Use 3.14 for π. Round to the nearest hundredth if necessary.
    5·2 answers
  • What is the value of the function f(x) = 2x + 3 for an input value of 3? (a)6(b) 12(c) 3 (d)9
    10·2 answers
  • Please please help
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!