An alloy is a mixture of metals. Suppose that a certain alloy is made by mixing 90 grams of an alloy containing 15% copper with 70 grams of an alloy containing 35% copper. Answer the questions below. Do not do any rounding. How many grams of copper are in the resulting mixture?
What percentage of the resulting mixture is copper?

What is the area of mnp? 40 m2 60 m2 68 m2 127.5 m2

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

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).