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Tju [1.3M]
3 years ago
5

How to find the length of a major arc

Mathematics
1 answer:
yuradex [85]3 years ago
8 0
To find arc length, start by dividing the arc's central angle in degrees by 360. Then, multiply that number by the radius of the circle. Finally, multiply that number by 2 × pi to find the arc length.
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What other points are on the line of direct variation through (5, 12)? Check all that apply. (0, 0) (2.5, 6) (3, 10) (7.5, 18) (
aalyn [17]

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form y/x=k or y=kx

in this problem we have

the point (5,12) is on the line of direct variation

so

Find the constant of proportionality k

y/x=k-------> substitute ------> k=12/5

the equation is

y=\frac{12}{5}x

Remember that

If a point is on the line of direct variation

then

the point must satisfy the equation of direct variation

we're proceeding to verify each point

<u>case A)</u> point (0,0)

x=0\ y=0

Substitute the value of x and y in the direct variation equation

0=\frac{12}{5}*0

0=0 -------> is true

therefore

the point (0,0) is on the line of direct variation

<u>case B)</u> point (2.5,6)

x=2.5\ y=6

Substitute the value of x and y in the direct variation equation

6=\frac{12}{5}*2.5

6=6 -------> is true

therefore

the point (2.5,6) is on the line of direct variation

<u>case C)</u> point (3,10)

x=3\ y=10

Substitute the value of x and y in the direct variation equation

10=\frac{12}{5}*3

10=7.2 -------> is not  true

therefore

the point (3,10) is not on the line of direct variation

<u>case D)</u> point (7.5,18)

x=7.5\ y=18

Substitute the value of x and y in the direct variation equation

18=\frac{12}{5}*7.5

18=18 -------> is true

therefore

the point (7.5,18) is on the line of direct variation

<u>case E)</u> point (12.5,24)

x=12.5\ y=24

Substitute the value of x and y in the direct variation equation

24=\frac{12}{5}*12.5

18=30 -------> is not true

therefore

the point  (12.5,24) is not on the line of direct variation

<u>case F)</u> point (15,36)

x=15\ y=36

Substitute the value of x and y in the direct variation equation

36=\frac{12}{5}*15

36=36 -------> is true

therefore

the point (15,36) is on the line of direct variation

therefore

<u>the answer is</u>

(0,0)

(2.5,6)

(7.5,18)

(15,36)


5 0
3 years ago
Read 2 more answers
What's 4x divided by 2x
Ksivusya [100]
I think that's 2x but I'm not really sure.

I hope this helps.
5 0
3 years ago
What is 20/16=d/12? what equals d?
ozzi

Answer:

  d = 15

Step-by-step explanation:

Divide the numbers

\frac{20}{16} =\frac{d}{12}

\frac{5}{4} =\frac{d}{12}

Multiply all terms by the same value to eliminate fraction denominators

12*\frac{5}{4} =12*\frac{d}{12}

Cancel multiplied terms that are in the denominator

12*\frac{5}{4} =d

Multiply the numbers

15=d

Move the variable to the left

d=15

Hence, d= 15.

[RevyBreeze]

8 0
2 years ago
Read 2 more answers
Can smoke please help me with this I need help I’ll give brainliest
aniked [119]

Answer:

only one solution at x=0

Step-by-step explanation:

7 0
3 years ago
Help I don't know how to do geometry
Nana76 [90]

the transformation (x, y) → (x, y- 4) , means the x-coordinate remains unchanged, while the y-coordinate has 4 subtracted from it, for example

the points on the diagram

A(1, 5 ) → A'(1, 5 - 4) → A'(1, 1)

B(4, 5) →B'(4, 5 - 4) → B'(4, 1)

C(4, 3) → C'(4, 3 - 4) → C'(4, - 1)

D(2, 2) → D'(2, 2- 4) → D'(2, - 2)


6 0
4 years ago
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