jmoneyhotdog jmoneyhotdog

02-09-2016
Mathematics

contestada

I need help on number 12

I need help on number 12 class=

Respuesta :

02-09-2016

First set up the equation, 82=(x)(x+7).
Then simply it 82= x^2 + 7x. --> x^2 + 7x - 82
use the quadratic formula.

you should get 6.21 or -13.21.
Since length can't be negative, the answer should be 6.21feet.

Answer Link

Otras preguntas

Define "increased productivity" in terms of the number of tasks and the amount of time.

help pls i need this done tonight

A piece of unknown metal with mass 68.6 g is heated to an initial temperature of 100 °C and dropped into 84 g of water (with an initial temperature of 20 °C) in

Finally, briefly explain a scenario where verbal communication is more effective than non-verbal communication.

Graphing the Solution of an Inequality on the Number Line Graph the solution of this inequality: 3/4 (x+8) > 1/2 (2x +10)

Please help Q4. Here are the first four terms of a sequence: 12, 36, 108, 324... a) Find the nth term for this sequence giving your answer in the simplest form

Dan invests £13000 into his bank account. He receives 4.3% per year simple interest. How much will Dan have after 5 years? answer : 15795 :)

Please answer fast ASAP I give brainliest All you need is on the photo

Fleeing violence and seeking more equality, thousands of black Americans moved to northern cities in what is today known as the Great Migration. There were many

1. Calculate the speedfor a car that went a distance of 125 miles in2 hours time? Provide the speed in kilometer per hour.