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
torisob [31]
3 years ago
9

In circle K, what is the value of x?

Mathematics
1 answer:
djyliett [7]3 years ago
8 0

Answer:

18°

Step-by-step explanation:

A diameter cuts a circle into two arcs that are each 180°. An inscribed angle that intercepts an arc of 180° has a measure of 90°. Thus we have ...

... 5x = 90°

.. 90°/5 = x = 18°

You might be interested in
Solve for x, and refer to the attached image.
AVprozaik [17]

Answer:

x=8

Step-by-step explanation:

7+5x

so basically what you have to do is take the 7 and subtract from both sides

so like this: 7-7 is 0 so that cancels then 47-7 is 40

then you take 5x and divide 40 by 5

so x=8

hope this helped!

4 0
3 years ago
A teacher was interested in knowing the amount of physical activity that his students were engaged in daily. He randomly sampled
klasskru [66]

Answer:

The standard error of the mean is 4.5.

Step-by-step explanation:

As we don't know the standard deviation of the population, we can estimate the standard error of the mean from the standard deviation of the sample as:

\sigma_{\bar{x}}\approx\frac{s}{\sqrt{n}}

The sample is [30mins, 40 mins, 60 mins, 80 mins, 20 mins, 85 mins]. The size of the sample is n=6.

The mean of the sample is:

\bar{x}=\frac{1}n} \sum x_i =\frac{30+40+60+80+20+85}{6}=52.5

The standard deviation of the sample is calculated as:

s=\sqrt{\frac{1}{n-1}\sum (x_i-\bar x)^2} \\\\ s=\sqrt{\frac{1}{5}\cdot ((30-52.5)^2+(40-52.5)^2+(60-52.5)^2+(80-52.5)^2+(20-52.5)^2+(85-52.5)^2}\\\\s=\sqrt{\frac{1}{5} *3587.5}=\sqrt{717.5}=26.8

Then, we can calculate the standard error of the mean as:

\sigma_{\bar{x}}\approx\frac{s}{\sqrt{n}}=\frac{26.8}{6}= 4.5

6 0
3 years ago
A company had net cash flows from operations of $120,000, cash flows from financing of $330,000, total cash flows if $500,000 an
AlexFokin [52]
450,500 because 120,000 and 330,000 and 500 thats the answer
5 0
3 years ago
5x^2-44x+130=-30+16x
sweet [91]

Answer:

if its answer for x its

Step-by-step explanation:

=4

=8

7 0
3 years ago
Read 2 more answers
Please help! I need help with this multiple choice question, thank you.
coldgirl [10]

Answer:

A. SAS B. SSS C. AAS D. ASA

Step-by-step explanation:

A: Line segments AE and EB are congruent and line segments CE and ED are also congruent. The Angles in between line segments AE and EB and line segments CE and ED are congruent to each other

B: Line segments QT and TS are congruent. Line segments QR and RS are congruent. Both triangles share line segment TR

C: Angles A and B are congruent. Angles D1 and D2 are congruent. Line segment CD is shared between both triangles.

D: Angles C1 and C2 are congruent. Angles B1 and B2 are congruent. Line segment CB is shared between the two triangles.

7 0
3 years ago
Other questions:
  • Your promotional budget for this year is $200 for personal selling, $400 for sales promotion, $1000 for advertising, and $700 fo
    7·2 answers
  • Find the difference: 28y − 16y. Select one of the options below as your answer:.A. 12y. B. 10y. C. -44y. D. -12y
    8·1 answer
  • Can someone help please​
    5·1 answer
  • Manuel painted 0.75 of a rectangular banner green. After the paint dried, he painted 0.6 of the green area orange. What part of
    11·1 answer
  • Meliza has 43 toy soldiers.She lines them up in rows of 5 to fight imaginary zombies.How many of these rows can he make?
    12·2 answers
  • Help PLEASE<br> I need help rn plsssssss I beg youu
    15·2 answers
  • What is the distance between the points (4, 7) and (4, −5)?
    15·1 answer
  • My teacher showed me this riddle can anyone help???
    14·1 answer
  • Celina built a model of a triangular pyramid. The model's height is shown in the diagram.
    10·1 answer
  • 23.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!