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About a 6th the size of Earth

1,079 mi

Factor:    4x² - 100

First, factor out the common term, 4:

               4(x² - 25)

               4(x + 5)(x - 5)

Find the domain of  y  =  sqrt( 16x² - 4 ).

The domain consists of all the values of x that will make the function defined. In this case, all the values of x that result in the expression  16x² - 4  >=  0.

To solve:  16x² - 4  >=  0

Divide all terms by 4:  4x² - 1  >=  0

--->                                   4x²  >=  1

--->                                     x²  >=  1/4

Find the square root of both sides and divide into two inequalities:

--->                     Either  x <= -1/2    or   x >= 1/2

Answer:      ( -infinity, -1/2 )  union  ( 1/2, infinity )

Verify the identity:  sqrt( [1 + sin(x)] / [1 - sin(x)] )  =  [1 + sin(x)] / | cos(x) |

Start with the left-hand side:

     sqrt( [1 + sin(x)] / [1 - sin(x)] )  

Multiply both the numerator and the denominator of the interior of this square root by the conjugate of the denominator

                                 the conjugate of  1 - sin(x)  is  1 + sin(x)

=  sqrt( [ ( 1 + sin(x) )( 1 + sin(x) ) ] / [ ( 1 - sin(x) ) / ( 1 + sin(x) ) ]

=  sqrt( [ ( 1 + sin(x) )² ] / [ 1 - sin²(x) ] )

=  sqrt( [ ( 1 + sin(x) )² ] / [ cos²(x) ] )

Divide this into two parts, the numerator and the denominator:

=    sqrt( ( 1 + sin(x) )² ) / sqrt ( cos²(x) )

Simplify the square roots:

=  ( 1 + sin(x) ) / | cos(x) |

But how can woodchucks would chuck wood when to+too+two+2=the three trees in the chucking of woodchuckchuck to chuck wood if no wood is like would that can be chucked by woodchucks that meen that woodchucks=wouldchucks to wouldwuck woodchucks

That is all

but chucks arn't woodchucks that chuck wood if woodchucks could chuck wood-the three trees= to too two 2+ 2

hello. I am having a really hard time finding an equation to render results for y position given an x position for a parabola with a cosine of 70 degrees

y = x * cos 70°

way what  expain more :0

How con woodchucks chew  bubblegum when woodchucks chuck wood if woodchucks could chuck wood on three trees= 2 to two too+2?

need help

It meen how to two too 2+ 2 without the silverfish  edition one canot the other when woodchucks chuck wood with three trees=to+ two too 2 to

Use a calculator to evaluate the following expression. 2.1×1093×102

With web2.0calc is

2.1 × 1093 × 102 = 234120.6

what does this even mean

f(x) and g(x) will be inverse functions when  f( g(x) )  =  x  and  g( f(x) )  =  x.

f(x)  =  sqrt( x - 4 )  [with x >= 4]

g(x)  =  x² + 4  [with x >= o]

f( g(x) )  =  f( x² + 4 )  =  sqrt( (x² + 4) - 4 )  =  sqrt( x² + 4 - 4 )  =  sqrt( x² ) )  =  x    [Since x >= 0]

g( f(x) )  =  g( sqrt( x - 4 ) )  =  sqrt( x - 4 )² + 4  =  (x - 4) + 4  =  x - 4 + 4  =  x

Since  f( g(x) )  =  g( f(x) )  =  0,  f(x) and g(x) are inverse functions.

1/2 divided by 21

\(\)\(\frac{\frac{1}{2} }{21}= \frac{1}{2\times 21} = \frac{1}{42} \)

z = (5+5i)*(3-3i)

Algebraic form:
z = 30

Exponential form:
z = 30 × ei 0°

Trigonometric form:
z = 30 × (cos 0° + i sin 0°)

Polar form:
r = |z| = 30
φ = arg z = 0° = 0π

7   

Simplify the following:
(1+3 i)/(2-5 i)

Multiply numerator and denominator of (1+3 i)/(2-5 i) by 2+5 i:
((1+3 i) (2+5 i))/((2-5 i) (2+5 i))

(2-5 i) (2+5 i) = 2×2+2×5 i+-5 i×2+-5 i×5 i = 4+10 i-10 i+25 = 29:
((1+3 i) (2+5 i))/29

(1+3 i) (2+5 i) = 1×2+1×5 i+3 i×2+3 i×5 i = 2+5 i+6 i-15 = -13+11 i:
Answer: |-13 + 11i / 29

4x+6=18

    4x=12

      x=3

      3=x

      x=3

      3=x

      x=3

      3=x

      x=3

      3=x

      x=3

      3=x

      x=3

      3=x

      x=3

AA#-##A.

24 x 26 x 9 x 9 x 9 x 25=11,372,400 Number of plates under the restrictions.

24 x 26 x 10 x 10 x 10 x 25 =15,600,000 Number of plates if zeros allowed.

Two