Michelle purchased two kid’s meals that cost x dollars apiece. She also bought a salad for $4.97

and a rootbeer for $1.97. There is no sales tax.

If her bill was $12.92, what was the cost of each

kiddie meal? What would Michelle’s total bill

have been if she had bought twice as many

kiddie meals?

i believe it's a.

i'm not sure on this one, most likely correct.

step-by-step explanation:

given expression is .

now we need to simplify the given expression .

we know that square root is equivalent to the power 1/2. so that means we can take half of the exponents to get the square root of given expression.

expanding that will give a very very large number so let's keep answer in exponent form.

the answer is a) y= 2 csc [0.5 (x+pi/2)]-1

step-by-step explanation:

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