A circle has a diameter of 12 inches. what is the area of the shaded section. use 3.14 as pi. no a,b,c,d just an exact answer thanks

Answers

Answer 1
Answer:

Answer:

Area of shaded section is 113.04

Step-by-step explanation:

Area of circle is calculated by formula A=\pi r^(2).

where 'r' is radius.

here given diameter is 12 inches .

so radius is calculated as  r=(d)/(2)=(12)/(2)=6

and value of \pi is 3.14

so, Area is ;

A=\pi r^(2)

Put value of \pi =3.14 and r=6 inches

A=3.14*6^(2)

A=3.14*36

A=113.04

Hence, area of shaded section is 113.04

Answer 2
Answer: A = pi r ^2
A = 3.14(6^2)
A= 3.14 (36)
A = 113.04


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When two angles areadded together, they
form a 90° angle. One
of the angles is 1/2 the
other. How large Is the
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Answers

Answer:

30 degrees

Step-by-step explanation:

this can be expressed by x+y=90.

1/2y=x

multiply both sides by two to isolate y

y=2x

now sub in 2x for y in the first equation

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now subtract the value of x from 90 to find y

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How do you factor 3x^2+7x-6=0 and solve?

Answers

Do the factoring method
(3x-2)(x+3)
3x=2     X=-3
x=2/3

if we check
3x2+7x=6
3(2/3)2+7(2/3)=6
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18/3=6
The x=2/3 is correct now lets see the x=-3
3x2+7x=6
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3(9)-21=6
27-21=6
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so both x can be used in factoring


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Step-by-step explanation:

Five less than twice a number is 7

Answers

Make the number a variable x and make an equation
2x-5=7
Then solve
2x=12
x=6
Hope this helps. 
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Find a number that has 4 identical even factors each factor must be greater than one and can have only one and itself as factors

Answers

Answer:

The Number is 16.

Step-by-step explanation:

Given: Number has 4 Factors.

           All 4 factors are same and even.

           Factor are greater than 12.

           Factors can only has 2 factors that is 1 and itself or we can say factors are prime no.

We need to find this number.

We know that there is only 1 number which is even prime.

So, our required factor is 2.

And required Number = 2 × 2 × 2 × 2 = 16

Therefore, The Number is 16.

A number that has only 1 and itself as factors is called a prime number. The only even number (a number divisible by 2) that is also a prime number is 2. So a number that has 2 as its factor 4 times is 8 :)

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Answers

so subtracting 4x^4 -14x^3 +11 from -14x^6 -9x^5 -12x^2 we get 


-14x^6 -9x^5 -12x^2 -
      4x^4 -14x^3 +11 
-------------------------------------
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Answers

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