Use the Gauss-Jordan method to find A-1, if it exists.A = 
A. 
B. 
C. 
D. Does not exist
Answer: D
Mathematics
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Write the expression in the standard form a + bi.(-
+ i)6
A. 64 - 64
i
B. 64i
C. -64
D. -64
+ 64i
Mathematics
Find the first term a1 and the common difference d of the arithmetic sequence.an = 3n + 2
A. a1 = 5, d = 2 B. a1 = 8, d = 5 C. a1 = 2, d = 8 D. a1 = 5, d = 3
Mathematics
Solve.In triangle ABC, the measure of angle B is 5° more than three times the measure of angle A. The measure of angle C is 15° more than the measure of angle A. Which one of the following is true?
A. Angle B is 102° B. Angle C is 47° C. Angle A is 35° D. None of these
Mathematics
Decide whether or not the ordered pair is a solution of the system.(-4, -5)4x = 11 - y3x = -8 - 4y
A. Yes B. No
Mathematics