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
Zanzabum
3 years ago
12

Find x inscribed angles

Mathematics
1 answer:
mina [271]3 years ago
5 0
The easiest variable you can solve for first is "z". Knowing that opposite angles of a quadrilateral inscribed in a circle are supplementary, subtract 93 from 180 to get z.
Z should equal 87.
The next variable we can solve for is "x". We know that inscribed angles are half the measure of their intercepting arc, so we know 93 is half of (112 + x). The equation would look like this:

93= (112 + x)/2
Multiply both sides by 2
186 = 112 + x
Subtract 112 from both sides
74 = x

Now we can apply the same method we used to find "x" to find y. Set up an equation like this:
80 = (y + x)/2
Substitute the value of x in
80 = (y + 74)/2
Multiply both sides by 2
160 = y + 74
Subtract 74 from both sides
86 = y

Hope this helps!
You might be interested in
Pls help my sister doesn't know this question ​
slava [35]

Answer: i believe its the on that says 8g = 22 +26

Step-by-step explanation:

8g = 22+26

8g = 48

48 / 8

g=6

6 0
3 years ago
X+2/6÷3(4×12)/3+4(5)÷1/3 pleasehelp simplify this! Will award the BRAINLIEST!​
zimovet [89]

Answer:

8.444444444 or 76/9

Step-by-step explanation:

3 0
4 years ago
How mile does Zack walk in one month if he works 22 days that month
ioda

Answer:154 miles

Hi, to answer this question we simply have to multiply the distance that he walks every day (7 miles) by the number of days that he works in a month (22). Zack walks 154 miles in one month.

Step-by-step explanation:

HOPE THIS YOU GIVE A BRAINEST AM SMART AM HERE TO HELPPPP

8 0
3 years ago
Which of the following is a solution to the inequality below?
Vikentia [17]

Answer:

c>10 or C- C=10

Step-by-step explanation:

7 0
3 years ago
105. Suppose that the probability that an adult in America will watch the Super Bowl is 40%. Each person is considered independe
Ainat [17]

Answer:

a. X is the number of adults in America that need to be surveyed until finding the first one that will watch the Super Bowl.

b. X can take any integer that is greater than or equal to 1. \rm X\in \mathbb{Z}^{+}.

c. \rm X \sim NB(1, 0.40).

d. E(\rm X) = 2.5.

e. P(\rm X = 7) = 0.0187.

f. P(\text{X} = 3) +P(\text{X} = 4) = 0.230.

Step-by-step explanation:

<h3>a.</h3>

In this setting, finding an adult in America that will watch the Super Bowl is a success. The question assumes that the chance of success is constant for each trial. The question is interested in the number of trials before the first success. Let X be the number of adults in America that needs to be surveyed until finding the first one who will watch the Super Bowl.

<h3>b.</h3>

It takes at least one trial to find the first success. However, there's rare opportunity that it might take infinitely many trials. Thus, X may take any integer value that is greater than or equal to one. In other words, X can be any positive integer: \rm X\in \mathbb{Z}^{+}.

<h3>c.</h3>

There are two discrete distributions that may model X:

  • The geometric distribution. A geometric random variable measures the number of trials before the first success. This distribution takes only one parameter: the chance of success on each trial.
  • The negative binomial distribution. A negative binomial random variable measures the number of trials before the r-th success. This distribution takes two parameters: the number of successes r and the chance of success on each trial p.

\rm NB(1, p) (note that r=1) is equivalent to \sim Geo(p). However, in this question the distribution of \rm X takes two parameters, which implies that \rm X shall follow the negative binomial distribution rather than the geometric distribution. The probability of success on each trial is 40\% = 0.40.

\rm X\sim NB(1, 0.40).

<h3>d.</h3>

The expected value of a negative binomial random variable is equal to the number of required successes over the chance of success on each trial. In other words,

\displaystyle E(\text{X}) = \frac{r}{p} = \frac{1}{0.40} = 2.5.

<h3>e.</h3>

P(\rm X = 7) = 0.0187.

Some calculators do not come with support for the negative binomial distribution. There's a walkaround for that as long as the calculator supports the binomial distribution. The r-th success occurs on the n-th trial translates to (r-1) successes on the first (n-1) trials, plus another success on the n-th trial. Find the chance of (r-1) successes in the first (n-1) trials and multiply that with the chance of success on the n-th trial.

<h3>f.</h3>

P(\text{X} = 3)+P(\text{X} = 4) = 0.230.

3 0
3 years ago
Other questions:
  • The volume of a cylinder cone and sphere are shown below. The three figures have the same radius. The cylinder and the cone have
    12·1 answer
  • HELP ME PLEASE!!!!!!!!!!
    10·1 answer
  • What is the product of 5x times -x
    13·1 answer
  • Use the diagram. AB is a diameter, and AB is perpendicular to CD. The figure is not drawn to scale.
    14·1 answer
  • What is the x-coordinate of the point shown in the graph?<br> 2<br> 08<br> X
    11·2 answers
  • In a test of a method of gender selection, 725 couples used the XSORT method and 368 of them had baby girls. Choose the correct
    13·1 answer
  • Find the distance between these points. C(0, 4), T(-6, -3) √(37) √(85) √(109)
    12·2 answers
  • Dominic Marzetti is a fish and game warden at Natural Bridge State Park. He works 38 hours per week and earns $20.85 per hour. W
    14·1 answer
  • Use the information in the diagram to determine the height of the tree. the diagram is not to scale.
    13·1 answer
  • If f(x) = 8x and g(x) = 2x +1 find (f o g) (x)
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!