All Answers 358504 Answers

     Solve for x: (x + 9)/(x - 3) = (x - 2)/(x + 5).     

              (x + 9)        (x – 2)     

              –––––   =   –––––     

              (x – 3)        (x + 5)     

     (x + 9)(x + 5)  =  (x – 2)(x – 3)     

    x² + 14x + 45  =  x² – 5x + 6     

            19x + 39  =  0     

                     19x  =  – 39     

                         x  =  – 39 / 19     

_.     

The answer is 5 6 13 1 8

The answer is 14.

The answer is 6.

The answer is 2*sqrt(3).

The answer is 3/2.

The answer is 40*sqrt(6).

The answer is 15.

The sum of the interior angles of ANY triangle sum to 180 degrees. 

so 

50 + 75 + x = 180  degrees 

x = 180 - 50 - 75 

x = 55 degrees 

The answer is parallelogram and kite.

The answer is (d).

The answer is 20.

A large sphere has a radius of 6 centimeters. There is a smaller sphere inside the large sphere with a volume of 36 π. What is the volume of the large sphere? What volume is remaining after you subtract the small from the large sphere?     

1^st Question     

V_sphere = (4/3) π r³     

             = (4/3) • 3.1416 • 6³     

             = (4/3) • 3.1416 • 216     ( —> aka  288 π )     

             =  904.78     

2^nd Question     

288 π  –  36 π  =  252 π     

_.     

The answer is 11/2.

The answer is 17/8.