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
Zina [86]
3 years ago
9

Quadrilateral Q O B C is inscribed within circle O. Sides A C and C B are congruent. Arc A B is 220 degrees. What is the measure

of angle OAC if major arc AB measures 220 degrees?
55°
70°
110°
140°

The answer is 55, But can someone explained to me
Mathematics
1 answer:
saul85 [17]3 years ago
4 0

Answer:

A 55

Step-by-step explanation:

You might be interested in
You are selling lemonade for $1.50 a bag of kettle corn for $3 and a hotdog for $2.50 at a fair write and simplify an expression
Free_Kalibri [48]
P(1.50+3+2.50)=the amount of money you receive.
5 0
3 years ago
Read 2 more answers
What is the slope of 3,5 and -3,-5
olya-2409 [2.1K]
The slope is 5/3 five over 3. You youse the formula y2 - y1 over x2-x1. Plug into calculator,and then reduce.
5 0
3 years ago
Question 12 The GPAs of all students enrolled at a large university have an approximately normal distribution with a mean of and
andreev551 [17]

Complete question :

The GPAs of all students enrolled at a large university have an approximately normal distribution with a mean of 3.02 and a standard deviation of .29.Find the probability that the mean GPA of a random sample of 20 students selected from this university is 3.10 or higher.

Answer:

0.10868

Step-by-step explanation:

Given that :

Mean (m) = 3.02

Standard deviation (s) = 0.29

Sample size (n) = 20

Probability of 3.10 GPA or higher

P(x ≥ 3.10)

Applying the relation to obtain the standardized score (Z) :

Z = (x - m) / s /√n

Z = (3.10 - 3.02) / 0.29 / √20

Z = 0.08 / 0.0648459

Z = 1.2336940

p(Z ≥ 1.2336) = 0.10868 ( Z probability calculator)

8 0
3 years ago
What is the value of x in x = inverse of sin(-1/2)?
Anon25 [30]

Answer:

B. -pi/6

Step-by-step explanation:

8 0
3 years ago
A bowl contains 8 chips: 4 blue and 4 red. Three chips are drawn at random and without replacement from a bowl. What is the prob
PIT_PIT [208]

Answer:

the probability that 3 blue chips ( or red chips) are chosen is P(X=3) = 1/14

Step-by-step explanation:

Since the X= choosing  x blue chips, then P(X) follows an hypergeometric distribution , when sampling is done without replacement

P(X=x) = (C,x) * (N-C , n-x) /( N ,n)

where ( ) represents combinations then

N= population size = 8 chips

n = sample size = 3 chips

C = number of blue chips = 4 chips

x= number of blue chips that are chosen = 3 blue chips

replacing values

P(X=3) = (4,3) * (8-4 , 3-3) /( 8 ,3) = (4,3) * (4 , 0 ) /( 8 ,3) = 4 * 1  / [ 8!/(3!*5!) ] =

4*3!*5! /8! = 1/14

P(X=3) = 1/14

8 0
3 years ago
Other questions:
  • What is the approximate volume of the cone with a height of 9 cm and a radius of 15 cm.
    7·1 answer
  • PLEASE HELP ME!!!
    12·1 answer
  • What is the fewest number of expressions that a equation can contain?
    14·2 answers
  • P(x) = 5x4 + 7x3 – 2x2 – 3x + c<br> C=
    10·1 answer
  • Can someone read this Algebra help please
    14·2 answers
  • I need help i honestly dont get this​
    10·1 answer
  • At a hot dog stand they serve regular hot dogs and footling hot dogs at a ratio of 5 to 3. Based on this ratio how many footlong
    8·1 answer
  • Which of the following best explains the value of Sine StartFraction pi Over 3 EndFraction on the unit circle below?
    6·2 answers
  • How many solutions are there to the equation below?<br> 5x + 15 = 5(x+4)
    9·1 answer
  • Find the value<br> 9-2(--6-4)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!