annteairay22 annteairay22

18-08-2017
Mathematics

contestada

explain why the expression 7*3^x is not equal to the expression 21^x

Respuesta :

kphung76127 kphung76127

18-08-2017

According to the order of operations, exponents must be evaluated before multiplication.

Here's and example where x=2.
7*3^2
7*9
63

21^2=441

63 does not equal 441

Answer Link

Otras preguntas

What is King referring to in this quote from his "I Have a Dream" speech? "In a sense we've come to our nation's capital to cash a check."

Carla receives an allele for blue eyes from her mother, and an allele for brown eyes from her father If brown eye color is a dominant trait and blue eye color i

As a participant in a research study, you are asked to describe your relationship. The researchers ask you to choose which of various pairs of overlapping circl

What plus what would equal 3744

In 2019, the minimum wage in Arizona is $11 per hour. The total cost of renting a one-bedroom apartment in Tucson is $1410. Could people working 40 hours a week

In its first year of operations, Roma Company reports the following. Earned revenues of $54,000 ($46,000 cash received from customers). Incurred expenses of $30

The word ''draught'' or ''draft'' is associated with____

Which could be the area of the base of the triangular prism?

A compound that weighs 40.8 g contains 23.6 g Sb and 17.2 g F. What is the percent composition of antimony?

Raul mails three packages. The packages weigh 13.09 ounces, 13.16 ounces, and 13.8 ounces. Which package's weight is closest to 13 ounces?