Add.-10.8 + 9.0
A. -1.8
B. 19.8
C. 1.8
D. -19.8
Answer: A
Mathematics
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Combine terms.y3 - 6y4 + 8y2 + y4 - 12y3
A. -6y4 + y3 + 8y2 B. 5y4 + 11y3 - 8y2 C. -5y4 - 11y3 + 8y2 D. -5y8 - 11y6 + 8y2
Mathematics
cos 3°
A. 0.99 B. -0.99 C. 1.00 D. -1.00
Mathematics
Write an equation of the line through the given point with the given slope. Write the equation in slope-intercept form.(4, -3); m = -9
A. y = -9x + 33 B. y = 9x + 32 C. y = -9x + 31 D. y = -9x + 34
Mathematics
Find 
. Express the answer in standard form.z1 = 9(cos 45° + i sin 45°)z2 = 3(cos 135° + i sin 135°)
A. -3i
B. 3
- 3i
C. -3i
D. 3i
Mathematics