Acar dealership owner created a data table to see how many new and used cars were sold over several months. month new used july 37 63 august 45 32 september 20 44 october 27 39 november 71 12 december 48 87 what is the range for the number of cars, new or used, that were sold from july to december?

You find range by finding the difference between the largest number and the smallest number in the data set, the largest number is 87, the smallest is 12.

87 - 12 = 75.

The range for the number of cars, new or used, that were sold from July to December can be calculated by subtracting the largest number to smallest number.

The range for the number of cars, new or used, that were sold from July to December is 75.

Given:

The smallest number = 12

The largest number = 87

Calculate the the range by subtraction method.

Substitute the value.

Thus, the range for the number of cars, new or used, that were sold from July to December is 75.

Learn more about what subtraction method is here:

link

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.