ElectricPavlov

What are you talking about , siem?    A triangle can have side a and side b and side c = 1

WHAT solution?

Wikepedia states this about solubility in WATER

Solubility in water

anhydrous:[1] 84.03 g/100 mL (0 °C)
334.9 g/100 mL (90 °C) soluble (anhydrous)

Find the TOTAL area of the rectangle =  H x W =  14 x 10 m^2

    Subtract the triangle area   1/2 b x h = 1/2  x 3 x 8

    Subtract the trapezium area    (5+7)/2  x 10              To find the answer for the area of the lawn....

x ^(a^2-b^2) = x^(16)

So   a^2 - b^2 = 16      a^2 - b^2   is a difference of squares

         (a-b)(a+b) = 16        a+b is given as 2   sub this in

         (a-b) (2) = 16

         (a-b) = 8                      cool?  

No graphing needed.....    the x - intercept occurs when y = 0       sub that in to find the x value  (the y value is zero.....)

                                                y intercept occurs when x = 0         sub that in to find the corresponding y value (the y-intercept)....

  Go ahead...you can do it...  

Live and Learn! 

Welllllll.....you need to check your calculator...or your calculator skills ....haha   

Look at the possibilities I posted to your first question    here:

https://web2.0calc.com/questions/pre-calculus-trig_6

Yes, you are correct......2 is a prime number....I missed that one ! 

I'll use the first evalution to see if I get the same answer as you did:

Tan x/2 = +-  sqrt (   (1-cosx) /(1+cos x) )

              =+-sqrt (  (1- -3/5)/(1+ -3/5)  )   = + -  sqrt( 8/8  /  2/5)  = +-sqrt  (4)  =+2 or  -2       We know it is the negative one because it is in Q II

So YES!   The answer is  -2  !!!