Find the exact solutions to the quadratic equation in the complex numbers.(x - 9)2 = -16
A. 9 ± 8i
B. -9 ± 4i
C. 4i ± 9
D. 9 ± 4i
Answer: D
Mathematics
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Solve.A 52-kg skateboarder on a 1-kg board starts coasting on level ground at 5 m/sec. Let k = 3.2 kg/sec. How long will it take the skater's speed to drop to 1 m/sec?
A. 0.50 sec B. 26.66 sec C. -26.66 sec D. 26.15 sec
Mathematics
Express the number in scientific notation..00000078709
A. 7.8709 x 10-7 B. 7.8709 x 106 C. 7.8709 x 10-6 D. 7.8709 x 107
Mathematics
Graph the function over a one-period interval.y = 
sin (x + ?)
A. 
B. 
C. 
D. 
Mathematics
Find the difference.( 
- 
- 
variablename="impvar_4515673494814acf8752b7970" class="wirisformula" />) - ( 
- 
+ 
)
What will be an ideal response?
Mathematics