Note: enter your answer and show all the steps that you use to solve this problem in the space provided. a number cube is rolled 450 times. the number 3 comes up 67 times. a. what is the theoretical probability of rolling a 3? write your answer as a fraction in simplest form. b. what is the experimental probability of rolling a 3? write your answer as a fraction in simplest form.

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.

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.