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
rjkz [21]
3 years ago
14

50 pts (and will mark brainliest)

Mathematics
2 answers:
Alex787 [66]3 years ago
6 0

Answer:

c. 21/200

hope I helped!

steposvetlana [31]3 years ago
6 0

Answer:

C.

Step-by-step explanation:

You might be interested in
What is the mean, median, and mode of 3,8,13,4,9,15,7,8,5,
Stella [2.4K]

Answer:

Mean:  8

Median:  8

Mode:  8

Step-by-step explanation:

Find the average

Mean: 3 + 4 + 5 + 7 + 8 + 8 + 9 + 13 + 15 = 72

Divide by the amount on numbers:  72 / 9 = 8

8 is the average

Find the middle

Median:  3, 4, 5, 7, 8, 8, 9, 13, 15

8 is the middle

Find the most common

Mode:  3, 4, 5, 7, 8, 8, 9, 13, 15

8 is most common

3 0
3 years ago
Read 2 more answers
-1 3/8 ÷ ( -1 4/7) =
vazorg [7]

Answer:

121/56 or 2.160714

Step-by-step explanation:

invert the second fraction and multiply the fractions then simplify

give brainliest please

3 0
2 years ago
find the measure of the central angle of a circle if it's minor are length is 14π and the radius is 18 inches
MrMuchimi

Step-by-step explanation:

Length of arc of a circle is given as:

l =  \frac{ \theta}{360 \degree}  \times 2\pi \: r \\  \\  \therefore \: 14\pi = \frac{ \theta}{360 \degree}  \times 2\pi \:  \times 18 \\  \\ \therefore \:\theta =  \frac{14\pi \times \: 360 \degree }{2\pi \:  \times 18} \\  \\ \therefore \:\theta =  \frac{7 \times \: 360 \degree }{18}  \\  \\ \therefore \:\theta =  7 \times \: 20 \degree \\  \\  \huge \red{ \boxed{\therefore \:\theta =  140 \degree}}

Thus, the measure of central angle is 140°.

7 0
3 years ago
The American Civil War was a civil war in the United States from 1861 to 1865, fought between northern states loyal to the Union
Sloan [31]

Answer:

The American Civil War was a civil war in the United States from 1861 to 1865, fought between northern states loyal to the Union and southern states that had seceded to form the Confederate States of America.

Why do phase changes occur?

1. Compare: Set the Water temperature to 0 °C and click Play. Observe the water molecules.

Click Reset, set the Water temperature to 100 °C, and click Play again.

What do you notice? The water molecules are moving slightly faster at 100 °C than at 0 °C.

[Note: This difference may be too small to observe easily.]

2. Observe: Click Reset. The mean molecular speed of the water molecules is displayed

below the container. Set the Water temperature to 0 °C and Add/remove heat energy to

400 J/s. Click Play.

A. How does the mean speed of the water molecules change as they are heated?

The average speed of water molecules increases as they are heated.

B. Does the mean molecular speed change as much as the temperature as the

water heats up? Explain.

Sample answer: For each degree of temperature change, the mean molecular

speed increases by about 1 m/s. At 100 °C, the mean molecular speed is about

17% faster than at 0 °C.

3. Explain: How is temperature related to the motions of molecules?

The higher the temperature, the faster the molecules move.

4. Observe: Click Reset. Set the Water temperature to 20 °C and the Ice volume to 50 cc.

Set Add/remove heat energy to 0 J/s. Click Play. How do the molecules in the liquid

interact with the molecules in the solid?

The molecules of the liquid collide with the molecules of solid, gradually breaking the bonds

between the molecules in the solid and causing the ice to melt.

Step-by-step explanation:

7 0
2 years ago
Given:
Westkost [7]

Answer: (A) If it is a bib, then it is a bab

<u>Step-by-step explanation:</u>

p: The bib is a bub.

Rewrite it as: If it is a bib, then it is a bub.

  • hypothesis: It is a bib
  • conclusion: It is a bub

q: The bub is a bab.

Rewrite it as: If it is a bub, then it is a bab

  • hypothesis: It is a bub
  • conclusion: It is a bab

The conclusion of p equals the hypothesis of q so the Law of Syllogism can be applied  --> hypothesis of p → conclusion of q

8 0
3 years ago
Other questions:
  • A number increased by 100% and decreased by 20% is x. What is the number ?
    11·1 answer
  • What is the original price if there is a 10% discount and the sale price is $76.50
    14·1 answer
  • The equation 24x2+25x−47ax−2=−8x−3−53ax−2 is true for all values of x≠2a, where a is a constant.
    11·1 answer
  • Given A = {a, b, c, d} and B = {1, 2, 3, 4} , sets A and B can be defined as?
    13·1 answer
  • The right rectangular prism is packed with unit cubes of the appropriate unit fraction edge lengths. Find the volume of the righ
    8·1 answer
  • Somebody helppppp pleassse
    5·1 answer
  • Help me out here! I’ll give you brainliest!!
    7·2 answers
  • Could somebody help me with that, please?
    9·1 answer
  • Joe created a video that was originally 77 minutes long. He ended up cutting is by 15%. How long was his video after he cut it?
    6·2 answers
  • Casey earned $220 selling baked goods. Her expenses were $2.50 per baked good. Which equation can be used to find b, the number
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!