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 :

gmany
gmany gmany
  • 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

The amount of available energy changes between the trophic levels found in a food chain or energy pyramid. Photos (left to right) by Mehmet Karatay, Jens Buurga
Answer this for the last time plzz ASAP brainest answer will be chosen plus extra points
can the excess reactant (in stoichiometry) be negative?
the blueprint (or set of instructions) to make a protein is called
what are liters, milliliters, and cubic centimeters used to measure? A: volume B: mass C: distance D: time
El Niño events are caused by warmer than normal ocean temperatures near the equator in the Pacific Ocean. Which weather events are most likely to occur as a res
Write a paragraph defining Mannerism and the baroque in art. Be sure to describe the characteristics of each style
Why do oceanic hot-spot volcanoes often form a long line of volcanic islands?
On a number line, Ernesto drew a dot at 700. Then, he drew another dot on a number that was 500 units smaller. What number was the new dot on? Write your answe
how many cups 1/2 + 1 1/6 + 1 3/4 in fraction plz