Solve the equation by factoring.x2 - 49 = 0
A. {49}
B. {7, -7}
C. {7}
D. {-7}
Answer: B
Mathematics
You might also like to view...
Write the number in scientific notation. 259,000,000
A. 2.59 × 10-6 B. 2.59 × 107 C. 2.59 × 106 D. 2.59 × 10-8 E. 2.59 × 108
Mathematics
Solve the problem.Find the minimum of C = 3x + 8y on the region of feasible solutions shown in the figure. 
A. C = 6 B. C = 0 C. C = 16 D. C = 40
Mathematics
Solve the equation on the interval 0 ? ? < 2?.cos(2?) = 
- cos(2?)
A. 
B. 
C. No solution
D. 
Mathematics
Matrix A is given. Find appropriate identity matrices Im and In such that ImA = A and AIn = A.A = 
A. Im = 
, In = 
B. Im = 
,
In = 
C. Im = 
, In = 
D. Im = 
, In = 
Mathematics