Let x represent the unknown, and write an equation for the sentence. Do not solve. When 4 times a number is subtracted from 7 times the number, the result is 27.
A. 7x - 4x = 27
B. 4x(7 - x) = 27
C. 4x + 9x = 27
D. 4(x - 7) = 27x
Answer: A
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Find all complex roots. Write the answer in polar form, with 0 ? ? ? 360°.Cube roots of -8
A. 2(cos 60° + i sin 60°), 2(cos 0° + i sin 0°) B. 2(cos 30° + i sin 30°), 2(cos 150° + i sin 150°), 2(cos 270° + i sin 270°) C. 2(cos 120° + i sin 120°), 2(cos 180° + i sin 180°), 2(cos 300° + i sin 300°) D. 2(cos 60° + i sin 60°), 2(cos 180° + i sin 180°), 2(cos 300° + i sin 300°)
Provide an appropriate response.After agreeing to be the payee for a promissory note as payment for the sale of goods, a business:
A. may discount the note to a third party B. may sell the note to a third party in exchange for cash C. all apply in the case of a third-party discount note D. receives the maturity value of the note if sold to another party, minus the third-party discount
Multiply. Simplify your answer if possible.-7y(8y2 - 2y + 12)
A. -56y3+ 14y2 - 84y B. -56y2 + 14y - 84 C. -56y3+ 14y2 + 12 D. -56y3- 2y + 12
Determine whether the function is periodic. If it is periodic, find the period.f(x) = 9 sin3 x
A. 4? B. Not periodic C. ? D. 2?