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
uysha [10]
4 years ago
6

Solve for x. Show your work.

Mathematics
1 answer:
puteri [66]4 years ago
6 0
So, these are actually pretty simple once you learn the equality used to solve for "x" and when to implement this method. You can use this equality to solve for a segment "x" anytime that two secant lines cutting through a circle come from the same point outside the circle. 

Secant: by geometric definition is just a straight line that cuts a curve into multiple pieces.

I did one of them for you hopefully you can use my work for "a" to help you solve for "b".  For a. I got x=7.

You might be interested in
Which statements are true when verifying the solution set of |6-x/3|>18
Greeley [361]

Answer:

B, C, D, F

Step-by-step explanation:

i took the test :)

hope this helps!

4 0
3 years ago
Do a two column proof! <br> Given: AB = DC <br> Prove: AC = DB <br> please help!!!!!!!
scoundrel [369]

Answer:

answer is B

Step-by-step explanation:

hope dis help and if I may have brainly plz

6 0
3 years ago
Consider a left-tailed test, where the p-value is found to be 0.10. If the sample size n for this test is 49, then the t statist
tigry1 [53]

Answer:

df=n-1=49-1=48  

We know that the p value is 0.1, and since is a left tailed test would be given by:

p_v = P(t_{48} < t_{calculated})=0.1

And we can find the calculated value using excel or the t table.

If we use the following excel code we got: "=T.INV(0.1,48)"

And the calculated value is t_{calculated}=-1.29944

Step-by-step explanation:

State the null and alternative hypotheses to be tested  

We need to conduct a hypothesis in order to determine if the true mean is lower than specified valu \mu_o, the system of hypothesis would be:  

Null hypothesis:\mu \geq \mu_o  

Alternative hypothesis:\mu < \mu_o  

Compute the test statistic  

We don't know the population deviation, so for this case is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:  

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}} (1)  

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

We can find the degrees of freedom for this test given by:

df=n-1=49-1=48  

We know that the p value is 0.1, and since is a left tailed test would be given by:

p_v = P(t_{48} < t_{calculated})=0.1

And we can find the calculated value using excel or the t table.

If we use the following excel code we got: "=T.INV(0.1,48)"

And the calculated value is t_{calculated}=-1.29944

3 0
3 years ago
Two lines intersect at a point. The vertical angles formed are supplementary.
Nastasia [14]

we know that

<u>Vertical angles</u> are a pair of opposite and congruent angles formed by intersecting lines.

so

Let

x1---------> angle vertical 1

x2---------> angle vertical 2

x1=x2 ------> equation 1

in this problem

if the vertical angles formed are supplementary

that means that

x1+x2=180 ------> equation 2

substitute equation 1 in equation 2

x1+x1=180

2x1=180

x1=180/2

x1=90 degrees

therefore

<u>the answer is</u>

The vertical angles are right angles



8 0
3 years ago
What domain, range, median, and mode?
omeli [17]
I don't know domain but range is the smallest number and largest number, median is the middle number when the numbers are ordered from least to greatest, and the mode is the most common or reoccuring variable in a set of numbers.
6 0
3 years ago
Other questions:
  • Study the image. Small, puffy rows of clouds high in the sky. Which type of clouds are shown? cirrocumulus cumulonimbus cumulus
    15·2 answers
  • $10 with 15 Percent tip
    11·2 answers
  • Clint is in study hall reading a book. after 20 mins, he is on page 151. after 45 mins, he is on page 181. how many pages has cl
    15·2 answers
  • a photograph 6 inches wide by 8 inches long is scaled to 12 inches long in a book.what is the width of the published picture?
    14·1 answer
  • Penny used 2/5lb. Of flour to bake a vanilla cake. She used another 3/4lb. Of flour to bake a chocolate cake a. How much flour d
    12·1 answer
  • The dimensions of two square pyramids formed of sand are shown. How much more sand is in the pyramid with the greater volume?
    6·2 answers
  • What is (3+x)(4+x) in standard form ?
    6·1 answer
  • Solve each question for the variable.
    15·1 answer
  • I need help please help me.
    15·1 answer
  • Five packages A, B, C, D, and E are shipped out. The values below represent the
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!