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
Digiron [165]
3 years ago
15

How does 2π/4 simplify to π/4?

Mathematics
1 answer:
lana [24]3 years ago
5 0
It doesn't
remember that
(x/g) times (y/z)=(x time y)/(g times z) so
2pi/4=(2 times pi)/(4 times 1) so
2pi/4=2/4 times pi/1=1/2 times pi/1=pi/2
You might be interested in
Eli and Claire work at a dry cleaners ironing shirts. Eli can iron 15 shirts per hour,
shusha [124]

Answer:

∴ Eli worked for 8 hours and Claire worked for 9 hours

Step-by-step explanation:

Let us form the two equations then graph them

∵ Eli worked for x hours

∵ Claire worked for y hours

∵ Eli and Claire worked a combined 17 hours

∴ x + y = 17 ⇒ (1)

∵ Eli can iron 15 shirts per hour

∵ Claire can iron 20 shirts per hour

∵ They ironed 300 shirts together in 17 hours

→ Multiply x by 15 and y by 20, then add the products and equate their

   sum by 300

∴ 15x + 20 y = 300 ⇒ (2)

Now let us find 2 points in each equation and draw the two lines which represent the two equations

→ In equation 1, put x = 0

∵ x = 0

∵ 0 + y = 17

∴ y = 17

∴ The first point is (0, 17)

→ Put y = 0 and find x

∵ y = 0

∴ x + 0 = 17

∴ x = 17

∴ The second point is (17, 0)

→ In equation 2, put x = 0

∵ x = 0

∵ 0 + 20y = 300

∴ 20y = 300

→ Divide both sides by 20

∴ y = 15

∴ The first point is (0, 15)

→ Put y = 0 and find x

∵ y = 0

∴ 15x + 0 = 300

→ Divide both sides by 15

∴ x = 20

∴ The second point is (20, 0)

Draw the first line using points (0, 17) and (17, 0)

Draw the second line using points (0, 15) and (20, 0)

The graph is attached down

From the graph

The red line represents equation (1)

The blue line represents equation (2)

The two lines intersected at point (8, 9) which is the solution of the system of equations

∴ The solution of the two equations is (8, 9)

∴ Eli worked for 8 hours and Claire worked for 9 hours

8 0
2 years ago
How can I solve this equation 6+7x=55
lorasvet [3.4K]

You could solve it with these two steps:

             #1).  Subtract 6 from each side of the equation.
and then
             #2). Divide each side by 7.

If you'll do that, the solution will be right there on the paper in front of you.
It'll begin with "x =", and right after that will be the value of 'x'.


7 0
3 years ago
Read 2 more answers
Please help me with these 3 questions!​
juin [17]

Answer:

1) -4x-6x+8x=2-6

-2x=-4

x=-2

2)3x-4x=12-15

-1x=-3

x=3

3) 12.5x+10.25=680-410

22.75x=270

x=11.86

8 0
3 years ago
The triangular arrangement of numbers shown is known as Pascal's triangle. Use inductive reasoning to find the 6 missing numbers
denis-greek [22]

Answer:

1 5 10 10 5 1

Step-by-step explanation:

The complete question has been attached as an image.

Looking at the triangle, we see a pattern. The first level we have 1, in the next level we have 1 1, the next evel we have 1 2 1, the next level we have 1 3 3 1 and so on. From here, we see that to get the numbers of the next level, we have to write 1 as the first number, then add 1 to the next number after it in the previous level to get the second number in the next level then add the second number of the previous level to the next number beside it to get the third number in the next level and so on until you get to the last number before 1 in the previous level, add that number to 1 to get the second to the last number in the next level and finally put 1 as the last number in the next level. Now, we have

1 4 6 4 1

1 5 10 10 5 1

And that is the required set of numbers.

3 0
3 years ago
The probability of rolling a 2 is 1/6 predict how many times a 2 will be rolled out of 30 rolls.
Anestetic [448]

Answer:

5 times

Step-by-step explanation:

Given that the probability of a 2 is \frac{1}{6} then number of times a 2 will be rolled is

30 × \frac{1}{6} = 5

5 0
3 years ago
Other questions:
  • Please help me with this! If you’re smart you can solve it!
    7·1 answer
  • Whats the area and perimeter
    6·2 answers
  • Arthur earn $136 in three weeks he goes back to school in one he needs at least $189 in a new coat that he wants for school how
    6·2 answers
  • The number of people that can be safely carried in a lift depends on their mass. A lift will safely
    7·1 answer
  • How do I factor <br> x ^5−x^ 4+3x−3
    10·1 answer
  • -3a + 5 =-1 please help me
    9·2 answers
  • 11) Krystal and Rob each improved their yards by planting hostas and ivy. They bought their
    12·1 answer
  • Help i’m timed pllzzzzz
    13·1 answer
  • What is the area of this figure?
    6·1 answer
  • How to Solve (−5) ⋅ (−3)
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!