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
Mkey [24]
3 years ago
15

The chord XY is a diameter of of O. True or false?

Mathematics
2 answers:
vlada-n [284]3 years ago
6 0

Answer:

False, XY is not a diameter

Step-by-step explanation:

To be a diameter, it must go through the center of the circle, which is point O

The chord XY does not pass through the point O, so XY cannot be a diameter

steposvetlana [31]3 years ago
3 0

Answer:

False

Step-by-step explanation:

XY is the diameter of the circle with the centre of this circle being O.

But O on it's own is just a coordinate, and not the circle.

You might be interested in
PLEASE HELP ANSWER FAST I WILL GIVE BRAINLIEST!!!!!
bija089 [108]

Answer:

Take the number of weeks as x

12x = 544 - 100

x =444/12

x = 37

Thus it would take her 37 weeks to buy her a laptop

6 0
2 years ago
Read 2 more answers
What is the linear equation for this table?
MrRa [10]

Answer:

y=-2x-5

Step-by-step explanation:

6 0
2 years ago
What is the location of point R on the number line?<br> 14/5, 16/5, 18/5, 22/5
SOVA2 [1]

Answer: 14/5

Step-by-step explanation:

5 0
3 years ago
Which of the following set of ordered pairs is a function?
marissa [1.9K]

Answer:

C

Step-by-step explanation:

because it doesn't have an x number written twice like for example

(2,0) (2,8) (3,0)

3 0
3 years ago
Read 2 more answers
A recent study suggested that 70% of all eligible voters will vote in the next presidential election. Suppose 20 eligible voters
natita [175]

Answer:

0.0479 = 4.79% probability that fewer than 11 of them will vote

Step-by-step explanation:

For each voter, there are only two possible outcomes. Either they will vote, or they will not. The probability of a voter voting is independent of any other voter, which means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

70% of all eligible voters will vote in the next presidential election.

This means that p = 0.7

20 eligible voters were randomly selected from the population of all eligible voters.

This means that n = 20

What is the probability that fewer than 11 of them will vote?

This is:

P(X < 11) = P(X = 10) + P(X = 9) + P(X = 8) + P(X = 7) + P(X = 6) + P(X = 5) + P(X = 4) + P(X = 3) + P(X = 2) + P(X = 1) + P(X = 0)

In which

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 10) = C_{20,10}.(0.7)^{10}.(0.3)^{10} = 0.0308

P(X = 9) = C_{20,9}.(0.7)^{9}.(0.3)^{11} = 0.0120

P(X = 8) = C_{20,8}.(0.7)^{8}.(0.3)^{12} = 0.0039

P(X = 7) = C_{20,7}.(0.7)^{7}.(0.3)^{13} = 0.0010

P(X = 6) = C_{20,10}.(0.7)^{6}.(0.3)^{12} = 0.0002

P(X = 5) = C_{20,5}.(0.7)^{5}.(0.3)^{15} \approx 0

The probability of 5 or less voting is very close to 0, so they will not affect the outcome. Then

P(X < 11) = P(X = 10) + P(X = 9) + P(X = 8) + P(X = 7) + P(X = 6) + P(X = 5) + P(X = 4) + P(X = 3) + P(X = 2) + P(X = 1) + P(X = 0) = 0.0308 + 0.0120 + 0.0039 + 0.0010 + 0.0002 = 0.0479

0.0479 = 4.79% probability that fewer than 11 of them will vote

8 0
3 years ago
Other questions:
  • kate, elizabeth and siobhan volunteer at the hospital. In a week, Katie volunteers 3 hours more than Elizabeth does and Siobhan
    7·1 answer
  • Express the set in interval notation:​
    11·1 answer
  • How to write a story context that would be represented by the ratio 1:4
    5·1 answer
  • Show that if A and B are similar nxn matrices, then det(A)=det(B).
    10·1 answer
  • Sally has 50 pencils. 38% of them have stripes. How many have stripes?
    13·1 answer
  • Determine whether Y= 2x^2 -1 is a linear equation. If so , write the equation in standard form. If Not PLEASE Explain?​
    14·1 answer
  • Rami has swimming lessons every 3 days and guitar lessons every 8 days. If he has both lessons on the first day if the month, in
    15·2 answers
  • Which transformation(s) can be used to map one triangle onto the other? Select two options.
    8·1 answer
  • Y=x^2 -9x at x = 4 Find an equation of the tangent an an equation of the normal
    14·1 answer
  • | x | &lt; 2 <br><br> solve the inequality and then graph the solution
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!