slimshadee2016 slimshadee2016

11-03-2016
Mathematics

contestada

help me find the solution to this quadratic formula 5r^2=80

Respuesta :

Justokay Justokay

11-03-2016

This is an easier way:
5r^2=80
Both sides divided by 5.
r^2=16
And then both sides the root.
r=4 or r=-4

Answer Link

Otras preguntas

What does not describe a way that Roosevelt assisted the Allies before entering World War II ? A. offering the surveillance services of military intelligence to

The midpoint of segment AB is (3,5). What are thecoordinates of B if the coordinates of A are (4,0)?

A parallel-plate capacitor has plates with an area of 451 cm2 and an air-filled gap between the plates that is 2.51 mm thick. The capacitor is charged by a batt

Given the system of equations, what is the solution? x + 2y = 11 x - 2y = -1 {(1, 1)} {(-5, -3)} {(5, 3)}

Hybridization adapt to

Water drips from the nozzle of a shower onto the floor 184 cm below. The drops fall at regular (equal) intervals of time, the first drop striking the floor at t

A dietitian read in a survey that at least 55% of adults do not eat breakfast at least three days a week. To verify this, she selected a random sample of 80 adu

Write a program that uses a two-dimensional array to store the highest and lowest temperatures for each month of the year. Prompt the user for 12 months of high

A wealthy person's best option for helping out a charitable cause is to donate cash. True False

-2x-7≥41 in algaebra for