The probability of choosing a soccer ball out of a bag containing 4 soccer balls, 1 playground ball , and 3 basketballs

50% = 0.5

Step-by-step explanation:

-Find the total number of balls (8 balls)

-And then find the relative frequency for each ball.

4/8= 0.5

1/8= 0.125

3/8= 0.375

-Then multiply by 100 to get the percent.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.