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

Does the speaker seem genuine when he recommended wearing the mask
Which statement about society is true today? O A. Saying that you do not stereotype means that you are a racist. O B. We are trained to look at people's color.
SOMEONE PLEASE HELP ME!!!!! Choices: A: 35 B: 135 C: 45 D:55
Directions: Type your answer in the box.a woman has 6 apples. She needs 1/4of an apple to prepare one serving of fruit salad how many servings can she prepare
What is anti-parallel replication
Help me please? This problem is really not that easy?
Please help asap!!!!!!!!!!!
Help ASAP!!!! Please show work thank you
Why does a country needs a constitution? Explain in simple words
Help Please!Which of the following statements is NOT true?A) Consuming high sugar food right before exercising will give the body a boost of energy for your wor