Write the expression in the standard form a + bi.
4
A. 4i
B. -4i
C. 4
D. -4
Answer: D
Mathematics
You might also like to view...
Use the even-odd identities to find the exact value of the expression. cos (-60°)
A. 
B. - 
C. 
D. - 
Mathematics
This frequency table gives the distribution of ages of 100 people in a small town.
How many people are:More than 50 years of age
A. 15 B. No answer possible C. 42 D. 28
Mathematics
Find the coordinates of (a) the vertex and (b) the x-intercepts of the given quadratic function to the nearest hundredth.y = 2.3716x2 - 2x + 
A. (a) (0.42, 9.70) (b) (2.3716, 0), (1.19, 0) B. (a) (1.15, 6.38) (b) (9.70, 0), (-0.10, 0) C. (a) (2.69, 2.3716) (b) (0, 0) D. (a) (0.42, 2.69) (b) There are no x-intercepts.
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics