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

my mother's work at a bank (into negative sentence)

Given g(x)=5x-3g(x)=5x−3, find g(-4)g(−4). g(x)=5x-3 g(x)=5x−3 g(\color{green}{-4})=5(\color{green}{-4})-3 g(−4)=5(−4)−3 Plug input into x -20-3 −20−3 Multiply

Chloe is installing new windows in her house and needs to determine the amount of sealant she will need around the outside edge of each rectangular window. Each

Which country was a member of the Central Powers? C Russia Serbia C Italy Ottoman Empire

Find the value of x. AB=20 BC=6 CD=8

What was President Carter’s most serious foreign policy problem? A.) starvation in Africa B.) collapse of the Soviet Union C.) relations with China D.) a hosta

your brother know a lot about him convert into simple present

F. What change was each of these reformers responsible for? Upton Sinclair: John Muir: I WILL GIVE YOU POINTSS

solve x/3+y/4=2 2x/3+3y/4=5

What parts of China are most densely populated