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
nekit [7.7K]
3 years ago
12

How many lines of symmetry are in the regular pentagon O A. 3O B. 5O C. 7O D. 9​

Mathematics
1 answer:
stiks02 [169]3 years ago
7 0

Answer:

5

Step-by-step explanation:

There is one line of symmetry for each side of the pentagon.

You might be interested in
Evaluate each trigonometric equation for θ.
liberstina [14]

Answer:

sinФ = 8/17

cosФ = 15/17

tan Ф = 8/15

csc Ф = 17/8

sec Ф = 17/15

cot Ф = 15/8

Step-by-step explanation:

Let us revise the trigonometry functions

  • Sin(x) = opposite/hypotenuse
  • Cos(x) = adjacent/hypoteouse
  • Tan(x) = opposite/adjacent
  • Csc(x) = hypotenuse/opposit
  • Sec(x) = hypotenues/adjacent
  • Cot(x) = adjacent/opposite

In the given figure

The opposite side to angle Ф = 8

The adjacent side to angle Ф = 15

Find the hypotenuse using Pythagoras' theorem

Hypotenuse = \sqrt{8^{2}+15^{2}  }

Hypotenuse = \sqrt{64+225}

Hypotenuse = \sqrt{289}

Hypotenuse = 17

Let us use the rules above to find the trigonometry functions

sinФ = 8/17

cosФ = 15/17

tan Ф = 8/15

csc Ф = 17/8

sec Ф = 17/15

cot Ф = 15/8

4 0
3 years ago
ALOT OF POINTS IF YOU HELP ME PLEASE EXPLAIN ​
Svetllana [295]

Answer:

Helena gave the answer as (7y²z + 6yz²- 5 - 3yz² + 2) which is equivalent to (7y²z + 3yz² - 3).

Step-by-step explanation:

Misha's group was asked to write an expression equivalent to  

7y²z + 3yz² - 3

When Mr. Chen checked their answers, he found only one to be correct.

And she was Helena.

Helena gave the answer as (7y²z + 6yz²- 5 - 3yz² + 2) which is equivalent to (7y²z + 3yz² - 3).  

Because, (7y²z + 6yz²- 5 - 3yz² + 2)

= 7y²z + (6yz² - 3yz²) - (5 - 2)  

= 7y²z + 3yz² - 3 (Answer)

4 0
3 years ago
Jeremy can row 2/3 of a mile in 1/4 of an hour. What is the unit rate that describes the miles per hour?
svet-max [94.6K]
2.6 repeating miles per hour
4 0
3 years ago
(-6, 1) and 3, 5)<br> M= rise/run=(y2-y1)/(x2-x1)
Sergeeva-Olga [200]

Answer:

4/9

Step-by-step explanation:

The slope of these points would be: (5-1)/(3+6) = 4/9

7 0
2 years ago
Write equation of the line containing (-3,4) and (-1,-2)
astra-53 [7]

Answer:

y=-3x+1

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • 20 POINT QUESTION. EXPLAIN HOW YOU GOT THE ANSWER. I WILL MARK AS BRAINLIEST THANK YOU.
    15·1 answer
  • Item 3
    6·1 answer
  • Select the correct answer. Which of these numbers are 11 units from 0 on the number line? A: 0 B: +11 C: -11 A. A and B B. A and
    10·1 answer
  • Triangle ABC is translated to image A’B’C’. In this translation, A(5, 1) maps to A’(6,-2). The coordinates of B’(-1,0). What are
    5·2 answers
  • X-y+4z=5<br> 4x+z=2<br> x+5y+z=17
    10·1 answer
  • A triangular prism has an isosceles right triangle as a base. The volume of the prism is 342.1 cm3. Find the measure of one of t
    6·1 answer
  • What is the diameter of the circumference of pi?
    10·1 answer
  • -10c + 5 + 12c = -11
    13·2 answers
  • 33) What value for x makes this equation true? 4x + 3 = 23
    12·2 answers
  • No links please chdudnvd
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!