Margarita knows that her score on the final exam will be a quadratic function of the amount of time she studies. If she studies for 10 hours, she will score 50 %. If she studies for 20 hours,
she will score 85 %. If she studies for 35 hours, she will score 80 % (her score decreases due to
overwork and stress from lack of sleep).
a) How much should she study to maximize her score on the exam?
b)What is her maximum possible score on the exam?

their is no graph showing

step-by-step explanation:

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!

answer: sherk

step-by-step explanation:

just give up and watch the best anime ever sherk

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)