All Answers 358524 Answers

Yes,I have fond memories of that one too.

20/2(10)

20/20=1

x+y=7

x-y=1

x-1=y (from the second equation)

substitute in the first equation.

x+(x-1)=7

2x=6

x=3

1) Pinpoint the remedial areas you have problems with and put a lot of effort into learning those.

2) Do loads of repetative homework, to help stick things in your brain.

16 games

lost 4

win 12

(-4)(-4)+2*-4-4

=+16+2*-4-4

=16+-8-4

=16-8-4

=8-4

=4

Cut your regular pentagon into 5 isosceles triangles each radiating from the centre.

The cut each of those triangles in half making 10 congruent right angled triangles.

the hypotenuse is the radius of the hypotenuse of the triangles and

One of the sides of the triangle is a half of one side of the pentagon

and the other side of the trianngle is the apothem of the pentagon  I am going to call this side $$a$$

The angle radiating from the centre of each right angled triangle is    (360/5)/2 = 36 degrees

the length of the side opposite the centre angle is     0.5(240/5) = 24km

Now use tan to get the length of the apothem.     you will get     $$a\approx 33.03km$$

$$\\Area = 10* $ area of right angled triangle$\\
=10* (0.5*base * height)\\
=10*0.5*24*33.03\\
\approx 3964 km^2$$

possibly because of rounding errors  

Thanks Chris :)

It would land heads 80 times

Hi Chris,

2 to the power of seven divide by the calculase of the mass of the sun divided by 2 and added to the number of the temperature of the sun

Rosala can answer this question. She probably just missed it in all the clutter.

if someoneone else asks that god d**n question one more time im going to rip the person tongue out and make them eat it and its 19

The volume of a cube can be found by:  Volume  =  length x width x height

Since the length, width, and height of a cube are all equal:  V  =  s x s x s  =  s³.

So:  40  =  s³  --->   s  =  ³√(40)  ≈  3.42

Subtract the tips from the total earned to get the base pay:

    $720.00 -  $531.50  =  $188.50

Since she makes a base salary of $3.25, divide $188.50 b $3.25 to get the number of hours worked:

   $188.50 ÷ $3.25  =  58 hours.

If the equation has the form:  y  =  ax² + bx + c,

the x-coordinate of the vertex is:  x  =  -b/(2a).

For the problem:  y  =  x² + 2x - 8, a  =  1,  b  =  2,  and  c  =  -8,

so, the x-coordinate of the vertex is:  x  =  -2/2  or -1.

Substituting this value back into the equation:  y  =  (-1)² + 2(-1) - 8  =  -9.

Putting this together, the vertex is:  (-1, -9).

Use the distributive property:

     (x + 5)(x - 4)  =  x(x - 4) + 5(x - 4)

Distributive again:  =  x² - 4x + 5x - 20

Simplify:                  =  x² + x - 20

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