geno3141

First, find the amount that the stock decreased:  $90 - $36  =  $54

Now, compare that amount to the original amount by finding what part that is of the original amount (thus, you have to divide):  $54 / $90  =  0.60  =  60%

a³ x 99   =   99a³

4%  means  4 out of 100 

4 out of 100  can be written as  4/100  or  0.04

"4 percent of $1314" means "4 percent times $1314"  which is  0.04 x $1314   =   $52.56

0.6  = 0.600

Now compare 0.600

               to   0.465

Since 600 and 465 are in the same decimal locations, when 465 is compared to 600, 465 is less than 600,

so   0.465 is less than 0.6

1 mile  =  1.609344 km

Therefore,  (1 mile)²  =  (1.609344 km)²      ===>   1 square mile  =  2.589955924 square kilometers

                                                                  ===>  1  =  2.589955924 sq km / sq mi

(The reason that I solved the above equation for 1 is because I can always multiply by 1 without changing the number value and multiplying sq mi by sq km / sq mi will result in an answer of sq km.)

(Also, mi²  is the same as sq mi.)

===>  4.3 x 10 ^8 mi²  

       =  4.3 x 10 ^8 mi²  x 1

       =  4.3 x 10 ^8 mi²  x  2.589955924 sq km / sq mi            (multiply by the conversion factor)

       =  11.1 x 10 ^8 sq km

       =  1.11 x 10^9 sq km

If you have more questions, please post back.

Circumference is found by the formula:  C = π · d

Since the wheel is 13 ft high, its diameter is 13 ft:     C  =   π · 13'    =    13π feet    ≈    41 ft. 

The 'h' stands for 'hyperbolic'.

Various sites will give you fuller explanations; you can try wolfram.com.

If you have just (330-250) / 250, your answer is .32, which is 32%.

If you have (330-250) / 250 -1, your answer is -.68, which is -68%.

If you have 330/250 - 1, your answer will be 32%.

You can't get 32% fom the problem given.

If all the numbers are different, then there is no mode.

There is a graphing equation that is very useful; it's called the "point-clope" form.

Obviously, you'll need both a point and the slope to use it.

It is:    y - y1  =  m( x - x1)

where  m is the slope and the known point is (x1, y1).

1)  m = -2        (x1, y1)  =  (-1, -5)  --->  x1 = -1  and  y1 = -5

     Placing those into the formula:  y - -5  =  -2(x - -1)

     Simplifying:  y + 5  =  -2(x + 1)    --->    y + 5  =  -2x - 2    --->    y  =  -2x - 7

2)  This formula needs the slope, so find the slope using    m  =  (y2 - y1) / (x2 - x1)

     (2, -3)  --->  x1 = 2  and  y1 = -3         (6, 5)  --->  x2 = 6  and  y2 = 5

     m  =  (5 - -3) / (6 - 2)    --->    m = 8 / 4    --->    m = 2

     Using the point-slope formula:    y - -3 = 2(x - 2)    --->    y + 3  =  2x - 4    --->    y  =  2x - 7