Write the complex number in polar form. Express the argument in degrees, rounded to the nearest tenth, if necessary.3 + 4i
A. 5(cos 233.1° + i sin 233.1°)
B. 5(cos 126.9° + i sin 126.9°)
C. 5(cos 306.9° + i sin 306.9°)
D. 5(cos 53.1° + i sin 53.1°)
Answer: D
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Convert the improper fraction to a mixed number.
A. 5
B. 6
C. 6
D. 7
Sketch the curve.x2 + 2y2 = 100
A. 
B. 
C. 
D. 
Write the Hindu-Arabic numeral in expanded form.710,002,002
A. (7 × 108) + (1 × 107) + ( 0 × 106) + ( 0 × 105) + ( 0 × 104) + (2 × 103) + ( 0 × 102) + ( 0 × 101) B. (7 × 108) + (1 × 107) + ( 0 × 106) + ( 0 × 105) + ( 0 × 104) + ( 0 × 102) + ( 0 × 101) + (2 × 1 ) C. (7 × 108) + (1 × 107) + ( 0 × 106) + ( 0 × 105) + ( 0 × 104) + (2 × 103) + ( 0 × 102) + ( 0 × 101) + (2 × 1 ) D. (7 × 108) + ( 0 × 106) + ( 0 × 105) + ( 0 × 104) + (2 × 103) + ( 0 × 102) + ( 0 × 101) + (2 × 1 )
Evaluate the function.Find f(12) f
A. (7, 4) B. None of these C. 7 D. 4