The center of a circle is located at (6, -1). the radius of the circle is 4.

what is the equation of the circle in general form?

a. x^2 + y^2 - 12x + 2y + 33 = 0

b. x^2 + y^2 + 12x - 2y + 33 = 0

c. x^2 + y^2 - 12x + 2y + 21 = 0

d. x^2 + y^2 + 12x - 2y + 21 = 0

What is the solution set of the quadratic inequality x2- 5< 0? o {xl-55x55{x- 155x55){xl -55x5 15){x1 - 15 sx5/5)

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered