In the equation ax2 + bx + c = 0, if b is equal to the new equation is In solving this form of equation, we will use the principle of

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?

Find the arc length of the semicircle. 7the grade

What are the solutions for the following system? -2x^2+y=-5 y=-3x^2+5