Combine the following, if possible.19
+ 11
- 
A. -7
B. 8
C. -30
D. 29
Answer: D
Mathematics
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Express the number in terms of j.
A. -2j
B. 2j
C. 2
D. -2
Mathematics
Express the number in scientific notation.0.000315
A. 3.15 × 10-3 B. 3.15 × 104 C. 3.15 × 10-4 D. 3.15 × 10-5
Mathematics
Change the word phrase to an algebraic expression. Use x as the variable to represent the number.a number minus two hundred three
A. x - 203 B. x + 203 C. 203x D. 203
Mathematics
Find the vertex of the parabola.f(x) = 3x2 - 24x + 4
A. (4, -44) B. (2, -4) C. (-2, 4) D. (-4, 2)
Mathematics