purpleunicorns105
purpleunicorns105 purpleunicorns105
  • 20-05-2021
  • Mathematics
contestada

NEED DONE ASAP!!
Solve. Show your steps
A.3x2 + 4 = 52
B.x2 - 121 = 0
C.(b + 4)2 = 49

Respuesta :

birungjoel
birungjoel birungjoel
  • 20-05-2021

Answer:

A. 3x^2 + 4 = 52

     3x^2 = 52 - 4

     3x^2 = 48

       x^2 = 48/3

       x^2 = 16

        x    = [tex]\sqrt{16}[/tex]

        x = 4

B. x^2 - 121 = 0

     x^2  = 121

       x = [tex]\sqrt{121}[/tex]

       x = 11

C. (b + 4 )2 = 49

    2b + 8 = 49

    2b  = 49 - 8

     2b = 41

        b = 41/2

Answer Link

Otras preguntas

If the profit is the difference between the revenue and the cost, what expression represents the profit? 3x – 260 3x + 140 5x – 260 5x + 140
what is the simplist form of 240/1000
PLEASE HELP!!! 15. the image below shows chromosomes in a human cell i need answer a, b and c please!
Thể tích của khối cầu có bán kính 3a bằng
Find an example of Personification
Help on this would be much appreciated thanks
Edwin is an insurance broker. Yesterday, he sold the Fredericks family a $425,000 insurance policy. And he also sold the Guthrie family a $379,000 insurance pol
The average age of 9 students is 15 years. What was the total age 4 years ago?​
Please Help I need this done (Question 1) A developed country is more likely to exhibit more of the following levels of economic activities?a. Secondary and Qua
pls explaing by tep by step