makenzeemccarter makenzeemccarter

06-02-2020
Mathematics

contestada

Simplify the expression (9 + 21)(9 – 21).

Respuesta :

ryryw2003 ryryw2003

06-02-2020

Answer:

-360

Step-by-step explanation:

1. Add 9 + 21 and subtract 9 - 21

2. That would be (30)(-12)

3. Then multiply 30 x -12

4. You get -360

Answer Link

Otras preguntas

The percentage of different types of tissue that make up our body is known as Essential body fat Genetics Body composition Metabolism

System of quadratic x² - y² = 4 x² + y² = 4

solve is 10,-12 a solution to the equation 3x+2y=6?

What are the Majority and Minority Leaders’ jobs? Explain both.

If a scientist finds evidence that contradicts a theory, ___________. Selected:a. the theory must remain the same, otherwise textbook companies would rebel.This

here's a linear equation. rewrite it in slope-intercept form -2-3y+15=0

According to C. Wright Mills, the real rulers of America include (select one): a. labor union leaders. b. the "new rich." c. corporate executives, the milita

How did weak sultans contribute to the decline of the Empire?

Jackie bought red and green binders and pais 2.25 for each rea binder and 3.24 for each green binder and spent a total of 21.96. If she bought the same number o

In the "Letter from the Birmingham Jail", Martin Luther King Jr. argued that love should be the guiding principle when dealing with racial inequality. True or f