jay47374 jay47374

04-06-2019
Mathematics

contestada

Solve by extracting roots. Round your answers to two decimal places.

5a² - 85 = 2.2a² - 30

Respuesta :

Desmariesin Desmariesin

04-06-2019

Answer:

2.8a = 7.4

Step-by-step explanation:

5a² - 85 = 2.2a² - 30

+ 85 = + 85

5a² = 2.2a² +55

- 2.2a² = -2.2a²

2.8a² = 55

√2.8a² = √55

2.8a = 7.4

Answer Link

Otras preguntas

Tom doesn't really want to give away blue marbles and would like to change the probability that he chooses a blue marble to 1/10.How many marbles that are not b

what the rational numbers equivalent to 6/9

How to put this an equation (an athlete trains for 115min each day for as many days as possible. Write an equation that relates the number of days d that the at

Manuel has 15 goldfish. This is 6 more than Quinn has. How many goldfish does a Quinn have?

what is an repeated decimal equivalency to the fraction 8/9

true or false all whole numbers are integers

What is the value of (-4.5) (-8.25) ? Please!

43.586 rounded to the nearest hundredth

what is 3/5 plus 5/8?

Explain why contact trace evidence is so important in solving crimes.