90% as a decimal is .9 and then as a fraction in simplest form is 9/10
Hope it helps
A quadratic equation given roots is solved by using the relation

from the question,
sum of the root will be



and also, product of the roots will
be

now substituting the sum of roots and product of roots into the equation


as the quadratic equation for the root 3/4 and -4
Answer:
x xjjkdjbdnnxuhxnmdujxnxlxuxbx
Abu X + 5
Razak 2x + 10
Ahmad X
Together 4x + 15
175 - 15 = 160
160 / 4 = 40
X = 40
WT
It does not perfectly cut the circle in half.