SOMEONE HELP PWEASE George is given two circles, circle O and circle X, as shown. If he wants to prove that the two circles are similar, what would be the correct first step in his proof?
answers
a.)c=pir2 and c=pi(r)2 by the definition of area of a circle
b.)c=pir and c=pir by the definition of area of a circle
c.) c=2pir and c=2pir by the definition of circumference
d.) c=2r and c=2r by the definition of circumference

Evaluate 8x2 + 9x − 1 2x3 + 3x2 − 2x dx. solution since the degree of the numerator is less than the degree of the denominator, we don't need to divide. we factor the denominator as 2x3 + 3x2 − 2x = x(2x2 + 3x − 2) = x(2x − 1)(x + 2). since the denominator has three distinct linear factors, the partial fraction decomposition of the integrand has the form† 8x2 + 9x − 1 x(2x − 1)(x + 2) = correct: your answer is correct. to determine the values of a, b, and c, we multiply both sides of this equation by the product of the denominators, x(2x − 1)(x + 2), obtaining 8x2 + 9x − 1 = a correct: your answer is correct. (x + 2) + bx(x + 2) + cx(2x − 1).