Answer:

Step-by-step explanation:
<u>Area of trapezoid</u>
Given a trapezoid shape whose parallel sides measure b1 and b2 and whose height (perpendicular to the base) is h, then the area of the trapezoid is given by

The dulcimer has the following dimensions


and height h
Thus

Operating


Is the required polynomial
Answer:
-4/3
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable
Its greater by a factor of 2^2 ( = 4)
Its 4 times the area of the original square.
Answer:
x^3-4x^2-5x+18
Step-by-step explanation:
When you distribute (x-2) (x^2-2x-9) you get x^3-2x^2-2x^2+4x-9x+18 combine like terms and you get your answer
If you would like to solve 8 * (x + 2), you can do this using the following steps:
8 * (x + 2) = 8 * x + 8 * 2 = 8 * x + 16
The correct result would be 8 * x + 16.