geno3141

The displacement is the location when t = 6.

Put 6 in for t in the equation and find the value:  9.6cos[ (2π)/6·(6) - π/2 ]

Divide 23 by 35 and multiply your answer times 100.

What does the 'm' represent?

You can use the calculator to get the decimal answer of 26 ÷ 4.

Divide the total cost by the total number of gallons:     $36.89  ÷  8.6  =        (the cost for one gallon of gas)

The x-intercept is the point (x, 0).

To find the x-intercept of an equation, substitute 0 in for y:

              -2x + 5y  =  -10

              -2x + 5(0)  =  -10

              -2x           =  -10

                          x  =  5

If you used the clockwise matrix times the matrix of points, the matrix solution would give you the new points:

|   cos90    sin90  |    X    |  1  3  1  -3  -2  |       =  |                             |                         

| -sin90    cos 90  |          |  3  2  -1  -2  2  |            |                            |

Where the first column in your answer matrix represents D', the second column represents E', etc.

What does the x-intercept represent?  It is the point (or points) where the graph crosses the x-axis.

What can it be used for?  It represents the answers to the associated equation. 

 For example, the line  y = 3x - 6 has its x-intercept at (2,0) And if you were asked to solve the equation        3x - 6 = 0, the answer would be x = 2.

Before the creation of hand-held calculators, an algorithm was taught in algebra classes; it can be found at 

24/27  =  8/9  ≈  0.889

(m/s)  ÷  (m/s²)  =  (m/s) x (s²/m)  =  s 

Answer:  (8/9)s  or  0.889 s

                                                                                                          5x + 5y  =  995

                                                                                                          4x + 5y  =  933

Now, subtract, column by column, the second equation fom the first:         x          =  62

Substituting this back into the first equation:  5(62) + 5y  =  995

                                                                     310 + 5y  =  995

                                                                               5y  =  685

                                                                                 y  =  137