Multiply.(-13) × -17

A. 234
B. -234
C. 238
D. 221


Answer: D

Mathematics

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Use the requested method to approximate the definite integral.Use the method of midpoint Riemann sum with n = 2 to approximate the value of 

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Write the number in standard form.4(cos 90° + i sin 90°)

A. -4 B. 4 C. 4i D. -4i

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Combine like terms whenever possible. Write the result with descending powers.5a4 - 13a4 + 3a2 + 5a4 - 14a2

A. -14a4 B. -14a6 C. -3a4 - 11a2 D. Cannot be simplified

Mathematics

Solve.The amount of simple interest earned on an investment over a fixed amount of time is jointly proportional to the principle invested and the interest rate. A principle investment of $4700.00 with an interest rate of 8% earned $1128.00 in simple interest. Find the amount of simple interest earned if the principle is $4500.00 and the interest rate is 6%.

A. $81,000.00 B. $810.00 C. $1080.00 D. $846.00

Mathematics