christian7533
christian7533
23-11-2020
Mathematics
contestada
solve the following
Respuesta :
kristen20200
kristen20200
23-11-2020
let’s say the unknown number is x.
therefore,
(2x)^2/3 - 30= 18
4x^2/3 -30 = 18
4x^2-90/ 3 = 18
multiply 18 by 3, and 4x^2-90 by 1
hence,
4x^2-90 = 54
4x^2=144
x^2= 144/4
x^2= 36
x=+ or - 6
hope it helps:)
Answer Link
VER TODAS LAS RESPUESTAS ( 55+ )
Otras preguntas
If ∠HGB = 57 °, ∠IGB = 28.5°, and HI = 12.2, what is the value of IJ?A) 24.4B) 12.2C) 34.7D) 6.1
please help its on study island 7th grade
Beth and Amy are trading marbles. Beth has three times more marbles than her sister, Amy. The equation given below shows this relationship, where x represents
Graph the quadratic function that represents the height of the firework. Determine an appropriate domain and range for this function, and use those as x and y m
The principal lender savers are A) hauseholds. B) governments C) foreigners. D) businesses.
Seraphina says that triangle KLM is a right triangle. Is she correct? Explain or show your work.a) Yes, she is correct.b) No, she is not correct.c) Cannot deter
An organic compound made of C, H and N contains 20% nitrogen. Its molecular weight is:A. 70B. 100C. 65D. 140
About 71 % of the residents in a town say that they are making an effort to conserve water or electricity. 110 residents are randomly selected. What is the prob
Mass A is initially moving with some unknown velocity in the x-direction. Mass B is twice as massive as mass A and initially at rest. The two objects collide, a
The Nazi regime's "final solution" is best described as a plan designed to _________. 1) eliminate the Jewish population 2) eliminate the Jewish population of E
