anaidvilla121 anaidvilla121

13-01-2019
Mathematics

contestada

What’s The elimination 7x+4y=-4 5x+8y=28

Respuesta :

mathecoach mathecoach

13-01-2019

Answer:

7x + 4y = -4

5x + 8y = 28

II - 2*I

- 9·x = 36 --> x = -4

7*(-4) + 4y = -4 --> y = 6

Answer Link

Otras preguntas

is the topic “death penalty” an example of a gatekeeper, scorekeeper, and/ or a watchdog? and please explain how. thanks!

write a linear function that has a slope of -2 and passes through the point (-3,4)

Suppose a drug is administered that prevents gated K+ channels from opening. What would happen during an action potential?(A) The membrane would hyperpolarize b

Reproduction in seaweeds can be very complex. It generally includes:a) Sexual reproduction onlyb) Asexual reproduction onlyc) Both sexual and asexual reproducti

The open, funnel-shaped portion of a uterine tube is called the

In the office of every general manager of Sleep Tight Motels there is a small poster that reads, "We want to become the only place our customers want to stay fo

Is 2:3 equivalent to 2:6?

A person walks 1/4 mile in 1/12 hour. What’s the persons speed in miles per hour?

Given that 3xy = (x^3 + y^2)^3/2 , find y'. The answer is attached below, providing the steps for the problem's answer.

Determine the wave function for a particle in a one-dimensional harmonic oscillator after time t if the initial wave function is given by ________.