If Quinn put $450 in a savings account that earned 3.5% interest, how much money would Quinn have after 2 years? (Use the simple interest formula I = prt to solve this problem)

$481.50

Step-by-step explanation:

So if you're using the simple interest formula, I=prt. You're "p" or principal will be 450, rate should be 3.5 or 0.035, and time is 2 years.  {I don't quite remember if 3.5 will be your rate, sorry.} But $450*0.035 is 15.75. You need to put your decimal point two places to the left for correct answer.  Then your time comes in and multiply 15.75 by 2, answer will $31.50. We're not done yet. Add the 450 and 31.50 to get $481.50.

I could be wrong but I think this is how you do it.  Someone check me to make sure this person gets a good grade.

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0

answer: n word

step-by-step explanation:

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