Mathematics: -2x^2+6x+1=-3x^2 solve to the nearest tenth

-2x^2+6x+1=-3x^2 solve to the nearest tenth - id22613213589510, Ezekielcassese

jocelynkissinge

02.07.2021

Step-by-step explanation:

The given equation is :

-2x^2+6x+1=-3x^2

Taking all the terms to one side of the equation i.e.

$-2x^2+6x+1+3x^2=0\\\\x^2+6x+1=0$

It is a quadratic equation of the form ax^2+bx+c=0 whose solution is given by :

$x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}$

Here, a = 1, b = 6 and c = 1

Put all the values,

$x=\dfrac{-6\pm \sqrt{6^2-4(1)(1)}}{2(1)}\\\\x=-0.171\ and\ x=-5.82$

Hence, this is the required solution.

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heyhowdy

29.02.2020

Adam

Step-by-step explanation:

You just have to divide feet/second

Adam: 15 feet per second

15/1=15

Noah runs 599 feet in 40 seconds

599/40=14.9

Jake runs 1 mile in 384 seconds

1 mile=5280 feet

5280/384=13.8

liz runs 667 feet in 1 minute

1 minute=60 seconds

667/60=11.1

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