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
Ghella [55]
3 years ago
7

I’m confused on this one

Mathematics
1 answer:
mestny [16]3 years ago
3 0

Theorem: angle (x) formed by intersecting secants (MAB and MDC) is half of the difference of the far arc (BC) and the near arc (AD).

Expressed as a formula,

x=(arc BC - arc AD)/2

=(60-10)/2

=25 °

You might be interested in
Is the perimeter and area of the square always the same?
avanturin [10]
I think it would be because say you have a square and all the sides are 4. If you add all the sides you would get 16 for the perimeter. If you do 4 x 4 you would get 16 as the area. So i think they are the same but i am sometimes stupid so dont just take my word on it.
Hope this helps! :)
6 0
3 years ago
How many solutions does the following system have? 3x+2y=1 -9x-6y=3
guajiro [1.7K]
Divide second equation by -3
3x+2y=1
other equatin is
3x+2y=1
since same equation, they are same line and lines are infinite so infinite solutions is answe
3 0
3 years ago
Read 2 more answers
A population is estimated to have a standard deviation of 9. We want to estimate the population mean within 2, with a 99% level
cupoosta [38]

Answer:

The sample required is  n = 135

Step-by-step explanation:

From the question we are told that

     The  standard deviation is  \sigma = 9

      The margin of error is E =  2

     

Given that the confidence level is  99%  then the level of  significance is mathematically evaluated as

         \alpha =  100-99

        \alpha =  1 \%

        \alpha =  0.01

Next we will obtain the critical value  \frac{\alpha }{2} from the normal distribution table(reference  math dot armstrong dot edu) , the value is  

             Z_{\frac{\alpha }{2} } =  Z_{\frac{0.05 }{2} } =  2.58

The  sample size is mathematically represented as

          n = [ \frac{Z_{\frac{\alpha }{2} } *  \sigma }{E} ]^2

substituting values

           n = [ \frac{ 2.58 *  9 }{2} ]^2

            n = 135

3 0
3 years ago
Britney is trying out for the track team along with 24 other people nine people were running distance seven people were there to
ivolga24 [154]

Answer:

The 6-minute half-mile time is continuous data; the number of people trying out for the team is discrete data.

Step-by-step explanation:

3 0
2 years ago
Make w the subject of the formula s = w/a
enot [183]

Answer:

w = sa

Step-by-step explanation:

Given

s = \frac{w}{a} ( multiply both sides by a to clear the fraction )

sa = w

8 0
3 years ago
Other questions:
  • claudia bought 2 filing cabinets and 4 cupboards. A filing cabinet costs 3 times as much as a cupboard. She paid 800 altogether.
    6·1 answer
  • What is 30% of 150 and how did you get that answer
    5·2 answers
  • Which statements are true about the ordered pair (1,2) and the system of equations? y=-2x+4 7x-2y=3 select all that apply. A.Whe
    8·1 answer
  • What is the slope of the line given by the equation below? y = - 3x + 5
    11·1 answer
  • What is the volume of this cylinder? *
    11·1 answer
  • Use the triangles below to answer the question.
    13·2 answers
  • Please help asap thanks
    11·2 answers
  • what is the quadratic equation for this graph? will make brainiest if also tell me how to put into vertex from
    9·1 answer
  • I need to solve for x
    14·1 answer
  • (04.03) The graph shows the amount of money paid when purchasing bags of candy at the zoo:
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!