The 2 triangles above are similar. The length of BC is 42 feet. The length of CA is 21 feet. The length of FD is 14 feet. What is the length of EF?

Se tiene en una caja de canicas 10, 4 blancas y 6 negras ¿cual es la probabilidad que en 2 extracciones con reemplazo sean blancas? ¿cual es la probalidad que en 2 extracciones sin reemplazo sean negras?

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

Suppose that the function f is defined. , for all real numbers, as follows. _ \ 1/4x² -4 if x≠ -2 f(x)=< /_-1 if x=-2 find f(-5), f(-2), and f(4)