Mathematics, 10.12.2020 03:00 IAmSmart5632

The $299.99 cell phone Brittany purchased was on sale for 10% off. What amount did Brittany save?

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Mathematics, 21.06.2019 23:30

Determine if the following statement is true or false. the normal curve is symmetric about itsâ€‹ mean, mu. choose the best answer below. a. the statement is false. the normal curve is not symmetric about itsâ€‹ mean, because the mean is the balancing point of the graph of the distribution. the median is the point whereâ€‹ 50% of the area under the distribution is to the left andâ€‹ 50% to the right.â€‹ therefore, the normal curve could only be symmetric about itsâ€‹ median, not about its mean. b. the statement is true. the normal curve is a symmetric distribution with oneâ€‹ peak, which means theâ€‹ mean, median, and mode are all equal.â€‹ therefore, the normal curve is symmetric about theâ€‹ mean, mu. c. the statement is false. the mean is the balancing point for the graph of aâ€‹ distribution, andâ€‹ therefore, it is impossible for any distribution to be symmetric about the mean. d. the statement is true. the mean is the balancing point for the graph of aâ€‹ distribution, andâ€‹ therefore, all distributions are symmetric about the mean.

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Mathematics, 21.06.2019 23:30

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Mathematics, 22.06.2019 01:10

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).