geno3141

Formula for slope:  m  =  (y2 - y1)/(x2 - x1)

For this problem,  m = 7,  x1 =6,  y1 = 2a,  x2 = a,  and  y2 = -2:

--->  7  =  (-2 - 2a)/(a - 6)

--->  7(a - 6)  =  (-2 -2a)                                (multiply both sides by a-6)

--->  7a - 42  =  -2 - 2a                                  (simplify)

--->  9a - 42  =  -2                                         (add 2a to both sides)

--->  9a  =  40                                               (add 42 to both sides)

--->  a  =  40/9                                              (divide both sides by 9)

Does 196π represent the circumference of a circle?

If so:  C = 2πr

--->   196π  =  2πr                          (Now, divide both sides by 2π:

--->   196π / (2π)  =  2πr / (2π)

--->   98  =  r

Distance  =  speed x time

398 m  =  122 m/s x time                       (Now, divide both sides by 122:)

time  =  398 / 122 s

Density = mass/volume

0.857  =  74.5/v

0.857v  =  74.5                              (multiply both sides by v)

v  =  74.5/0.857                             (divide both sides by 0.857)

When you finish that division, you will have the volume...

What do you mean by " 1/2 2x squared plus 2x"?

Is it ½(2x)² + 2x  =  20  

or is it  ½[(2x)² + 2x]  =  20  

or is it something else?

If the equation of a line is solved for y, it is in slope-intercept form:  y  =  mx + b, 

where  m  represents the slope and  b  represents the -intercept.

So the equation  y  =  -3/2x + 4  determines a line whose slope is  -3/2  and whose y-intercept is  4.

Use the distributive property:

7(8 - 4x)  =  7(8) - 7(4x)  =                     <---   finish this to get your answer ...

I believe that th appropriate formula is:  d = ½at² + v₀t

--->  d  =  ½(3.5)(12)² + (23)(12)

Try 0:  x² + 1  =  0² + 1 =  0 + 1  =  1

           2x + x  =  2(0) + 0  =  0 + 0  =  0

Try 1:  x² + 1  =  1² + 1 =  1 + 1  =  2

           2x + x  =  2(1) + 1  =  2 + 1  =  3

So, is it 0, 1, neither, or both?

To divide by a common fraction, multiply by the reciprocal:

8 ÷ 1/3  =  8 x 3/1  =  8 x 3  = ...