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
Oksanka [162]
3 years ago
12

GEOMETRY NEED HELP AS SOON AS POSSIBLE

Mathematics
2 answers:
Aneli [31]3 years ago
4 0

Answer:

BAC=15

Step-by-step explanation:

angle BOA= 180-30= 150

triangle BAO is   isosceles because it has two equal sides, radii of a circumference so the angles ABO=BAO=(180-150)/2=15

Tpy6a [65]3 years ago
4 0

Answer:

15

Step-by-step explanation:

angle BOA= 180-30= 150

triangle BAO is isosceles because it has two equal sides, radi of a circumference so the angles ABO=BAO=(180-150)/2=15

You might be interested in
A camera has a listed price of $615.99 before tax. If the sales tax rate is 9.25%, find the total cost of the camera with sales
sweet-ann [11.9K]

Answer:

559.01 i think that is rounded correctly

Step-by-step explanation:

so it did $615.99 - 9.25% = 559.010925

Hope This Is Good And Helped Sorry If i Did It Worng

4 0
2 years ago
Read 2 more answers
A product comes in cans labeled "38 oz". A random sample of 10 cans had the following weights:
KiRa [710]

Answer:

b. 35.9, 39.1 ounces

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".

barX=37.465 represent the sample mean for the sample  

\mu population mean (variable of interest)

s=2.27 represent the sample standard deviation

n=10 represent the sample size

Confidence interval

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

barX +- t*[(s)/(sqrt{n))]   (1)

In order to calculate the critical value t we need to find first the degrees of freedom, given by:

df=n-1=10-1=9

Since the Confidence is 0.95 or 95%, the value of alpha=0.05 and \alpha/2 =0.025, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.025,9)".And we see that t_(alpha/2)=2.26

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

37.465-2.26[(2.27)/(sqrt{10))]=35.9    

37.465+2.26[(2.27)/(sqrt{10))]=39.1

So on this case the 95% confidence interval would be given by (35.9;39.1)    

7 0
3 years ago
A mechanical system has 3 subsystems in series, each has reliabilities 98%, 96% and 94%, respectively. What is the overall relia
Ede4ka [16]

Answer:

The overall reliability of the system is 99.9952%

Step-by-step explanation:

Probability of the system not working:

None working, the first with 2% probability of not working(as it has 98% probability of working), the second with 4% and the third with 6%. So

0.02*0.04*0.06 = 0.000048

Probability of the system working:

1 subtracted by the probability of the systme not working.

1 - 0.000048 = 0.999952

0.999952*100% = 99.9952%

The overall reliability of the system is 99.9952%

4 0
3 years ago
NEED ANSWER FAST 11 POINTS!!!
AleksandrR [38]
Option 2 is your answer


Your numbers on the left are going across. Then the numbers on the top are going down
5 0
3 years ago
In the expression 7 1/2 divided by 3/4, which number is the dividend?
andre [41]

Answer:

7 1/2

Step-by-step explanation:

The number that is being divided is the dividend

7 0
2 years ago
Other questions:
  • Select the situation in which one quantity is changing at a constant rate in relation to the other quantity.
    6·2 answers
  • Max drove his car 389 miles on 18.6 gallons of gas how many miles per gallon did Max’s vehicle get to the nearest 10th of a mile
    13·1 answer
  • 'I' raise to the power 2 -'x' raise to the power 3=
    11·1 answer
  • Find the arc-length parametrization of the curve that is the intersection of the elliptic cylinder x 2 + y 2/2 = 1 and the plane
    11·1 answer
  • Been struggling with this question for an hour :(<br><br>please give simple explanation! thank you​
    13·1 answer
  • A map has a scale of 1cm to 17km. If Johnstown and San Jose are 204 km apart, then they are how far apart on the map?
    11·1 answer
  • PLEASE HELP ME IT IS DUE TOMORROW!!!!!
    10·1 answer
  • Which is greater, -11 or -9 ?
    15·2 answers
  • HELP plz I GIVE BRAINLIEST PLUS A LOT OF POINTS Draw a number line and mark all described points on it... ...Numbers that are ei
    6·1 answer
  • Please answer this math question for me.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!