Factor by grouping.t2 + 8t + 4t + 32
A. t(t + 44)
B. (t + 8)(t - 4)
C. (t - 8)(t - 4)
D. (t + 8)(t + 4)
Answer: D
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Write the complex number in trigonometric form r(cos ? + i sin ?), with ? in the interval [0°, 360°).-9 + 12i
A. 15(cos 53.1° + i sin 53.1°) B. 15(cos 233.1° + i sin 233.1°) C. 15(cos 306.9° + i sin 306.9°) D. 15(cos 126.9° + i sin 126.9°)
Use a ruler, protractor, and compass to construct, if possible, a triangle with the stated properties. If such a triangle cannot be drawn, explain why. Decide if there can be two or more noncongruent triangles with the stated properties.A right triangle with legs (the sides including the right triangle) measuring a length of 33 cm and 6 cm
A. No such triangle can be constructed. B. Exactly one such triangle can be constructed. C. Two or more such noncongruent triangles can be constructed.
Express the sum using summation notation with a lower limit of summation not necessarily 1 and with k for the index of summation.11 + 13 + 15 + 17 + ... + 27
A. 
B. 
C. 
D. 
Find the product.(7k + 1)3
A. 343k3 + 98k2 + 14k + 1 B. 343k3 + 147k2 + 21k + 1 C. 343k3 + 1 D. 343k3 + 294k2 + 21k + 1