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Arada [10]
3 years ago
5

In circle O, central angle AOB measures StartFraction pi Over 3 EndFraction radians What is the length of arc AB? 6π cm 12π cm 1

8π cm 36π cm
Mathematics
2 answers:
Radda [10]3 years ago
8 0

Answer:

6 pi

Step-by-step explanation:

edg 2020

Nina [5.8K]3 years ago
7 0

Answer:

a

Step-by-step explanation:

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Which are solutions of x2=-11+4?
Dovator [93]

For this case we have a quadratic equation of the form:

ax ^ 2 + bx + c = 0\\x ^ 2 + 11x-4 = 0

Where:

a = 1\\b = 11\\c = -4

We find the roots:

x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2 (a)}\\x = \frac {-11 \pm \sqrt {11 ^ 2-4 (1) (- 4)}} {2 (1)}\\x = \frac {-11 \pm \sqrt {121 + 16}} {2}\\x = \frac {-11 \pm \sqrt {137}} {2}

The roots are:

x_ {1} = \frac {-11+ \sqrt {137}} {2}\\x_ {2} = \frac {-11- \sqrt {137}} {2}

Answer:

x_ {1} = \frac {-11+ \sqrt {137}} {2}\\x_ {2} = \frac {-11- \sqrt {137}} {2}

3 0
3 years ago
Read 2 more answers
Use the Intermediate Value Theorem to show that there is a root of the given equation in the specified interval.
Olin [163]

Answer:

The correct option is  d

f(1) =  -5

f(2) =  11

The correct option is d

The correct option is  c

the correct option is  b

Step-by-step explanation:

The given equation is

     f(x) =  x^4 + x -7 =0

The give interval  is (1,2)

 

   Now differentiating the equation

        f'(x) =  4x^3 +7 > 0

Therefore the equation is  positive  at the given interval

       Now at x= 1

  f(1) =  (1)^4 + 1 -7 =-5

       Now at x= 2

  f(2) =  (2)^4 + 2 -7 =11

Now at  the interval (1,2)

      f(1) < 0 < f(2)

i.e

      -5 < 0 < 11

this tell us that there is a value z within 1,2 and

   f(z) =  0

Which implies that there is a root within (1,2) according to the intermediate value theorem

     

5 0
2 years ago
You are facing north west, if yiu turn left(90 degree) which direction is to your left 90 degree
jasenka [17]
When you turn 90 degrees from north-west you would be in south-west direction. Then, south-east will be in your 90 degrees left.
8 0
3 years ago
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One question I need help with, I would really appreciate the help.
LuckyWell [14K]

At first, she had  +2y  in the upper and  -5y  in the lower.

She multiplied the upper by  5 .  Then she had  +10y in the upper.

She should multiply the lower by  2 .  Then she'll have  -10y
there.  She'll be able to add the two equations, and the 'y's will
go away.  She'll be left with a single equation with only 'x' in it,
and she can solve that one for the value of 'x'.

4 0
3 years ago
Evaluate. 12⋅(1/4+1/3)2+2/3 enter your answer as a mixed number
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The answer i got is 44/3 but as a mixed number it’s 14 2/3
6 0
2 years ago
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