Write the complex number in rectangular form.9(cos 180° + i sin 180°)
A. 9
B. -9
C. -9i
D. 9i
Answer: B
Mathematics
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Find the foci of the given hyperbola.
- 
= 1
A. (-4, 0), (4, 0)
B. (- 
, 0) , (
, 0)
C. (0, -9), (0, 9)
D. (0, - 
) , (0, 
)
Mathematics
Provide an appropriate response.-4x + 2y = A 4x - 6y = BFor what values of A or B can this system of equations have (0,0) as a solution?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Perform the operation using trigonometric form. Write the answer in the form a + bi(5 - 6i)(7 + 9i)
A. -19 - 87i B. 89 - 3i C. -54i2 + 3i + 35 D. 89 + 3i
Mathematics
Write the number in standard form. 7 × 10-8
A. 0.00000007 B. -700,000,000 C. 0.000000007 D. 0.0000007
Mathematics