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

y=a(x-r)(x-s) what is a and r and s ?

Scientists in Maine estimates the 3 out of every 11 bears are born during the month of April predict how many bears are born in April out of 165 births Answer

A man drove 14 mi directly east from his home, made a left turn at an intersection, and then traveled 3 mi north to his place of work. If a road was made direct

Martha types a 4−digit code into a keypad to unlock her car doors. The code uses the numbers 1 and 0. If the digits are selected at random, what is the probabil

Fill in the blanks to complete each statement about weathering. Weathering is the breakdown of rocks into smaller particles called

The diagram shows a logo made from 3 circles. Each logo has centre O. What percentage of the logo is shaded blue? You must show all your working and the final a

PLEASE HELP ASAP WILL GIVE YOU BRAINLIEST

Who is the artist of the painting above? a. Poussin b. Christopher Wren c. Antoine Le Nain d. The artist is unknown. Please select the best answer from

Which story premise is most clearly a classic tragedy? O A. Hurricane Don approaches land, forcing Drew to leave his home behind. о B. Over the course of Mia's

In general, ____ parking spaces are easier to maneuver.