hailielynn2005 hailielynn2005

04-06-2019
Mathematics

contestada

Nine times the square of a number plus 8 is 44. The number is positive. What’s the number?

Respuesta :

13-07-2019

Answer:

n = 4

Step-by-step explanation:

[tex]n-number,\ n>0\\\\9n^2+8=44\qquad\text{subtract 8 from both sides}\\\\9n^2+8-8=44-8\\\\9n^2=36\qquad\text{divide both sides by 9}\\\\\dfrac{9n^2}{9}=\dfrac{36}{9}\\\\n^2=4\iff n=\pm\sqrt4\\\\n=\pm4[/tex]

Answer Link

Otras preguntas

Failure to display the fair housing poster shall be considered proof that a brokerage is engaged in discriminatory housing practice. True or False.

This table shows the number of customers who have come in to Trent’s Hobby Shop each day since he opened the doors. Is this function discrete or continuous? The

If 25.3 grams of mercury(II) oxide react to form 23.4 grams of mercury, how many grams of oxygen must simultaneously be formed?

Corporations and universities are willing to pay employees to take care of themselves because a healthier workforce A. performs more efficiently, thereby impro

Can someone explain to me how to do this question? It needs to be simplified and no decimals or fractions.

What happens when the number of protons of two elements is different?

A tank is 5 feet x 2 feet x 4 feet. It is filled with ware. There is also a block in the tank that is 2 foot x 1 foot x 3 feet. How much water is in the tank?

Almora, a developing open economy, is experiencing an economic boom since it discovered oil reserves off its coast two years ago. Bill Hudson, an economist with

Identify the subject(s) of the following sentence: He didn't know the mob boss paid off the cop. mob boss cop he; mob boss he

In order to encourage its farmers, the Cerian government provided them with low-interest loans for the purchase of seeds and fertilizers. The government also ga