For what value of 0 is cos^-1(sqrt2/2)=0?

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no