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Citrus2011 [14]
3 years ago
14

Circle d has a radius of 21 millimeters and central angle, ∠edf, which measures 60°. find the exact length of ef.

Mathematics
1 answer:
Iteru [2.4K]3 years ago
4 0
EF = (60/180) * 22/7 * 21 = 22mm
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What is this me don't get it
Montano1993 [528]
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What is the solution of this system of linear equations? 3y=3/2x+6 1/2y-1/4x=3.
tensa zangetsu [6.8K]

Answer:

No solution

Step-by-step explanation:

Please, separate equations with a comma, or the word "and," or a semicolon.

Next, determine the LCD and multiply both equations by it, so as to elimiinate the fractional coefficients.

3y=3/2x+6 1/2y-1/4x=3

should be written as the system

   3y=(3/2)x+6         Use parentheses around the fraction for clarity

(1/2)y-(1/4)x=3            Same:  use parentheses

The LCDs here are 2 (for the first equation) and 4 (for the second equation).  Multiply the first equation by 2 to eliminate the fractions:

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4[ (1/2)y-(1/4)x=3 ]     →   2y  -  x   = 12

Let's use the substitution method to solve this system.  Solve the 2nd equation for x, obtaining x = 2y - 12.  Substitute 2y - 12 for x in the 1st equation 6y = 3x + 12:

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5 0
3 years ago
Please answer this correctly I have to finish this today as soon as possible
Simora [160]

Answer:

It seems like it is 110 degrees.

Step-by-step explanation:

6 0
3 years ago
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Answer:

B

Step-by-step explanation:

Only 1 because

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3 years ago
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Alex73 [517]

Answer:

6

Step-by-step explanation:

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Equation

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Solution

3(3 -1 )        Evaluate what is inside the brackets.

3(2)      multiply

6

7 0
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