One day at the dog park John counted 127 dogs of which 52 were off leash playing using his information complete the contingency table below. Then use it to find the probabilities. Reduce all fractions and use / for the fraction bar

the forst and 3rd

step-by-step explanation:

77

step-by-step explanation:

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.