Solve the quadratic equation by completing the square.2x2 + 4x + 7 = 0
A. ± 
B. 
C. no real solution
D. 
Answer: C
Mathematics
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Evaluate the integral using the given substitution.
dt, u = 4 - sin 
A. 4
3 + C
B. 
3 + C
C. - 
3 + C
D. 
3sin 
+ C
Mathematics
Perform the indicated operations. Simplify if possible.
- 
+ 
A. 
B. 
C. 
D. 
Mathematics
Use a calculator to divide 
.
A. 930,693,888 B. 4987 C. 2,154,384 D. 2153952 E. 432
Mathematics
Use a calculator or square root table to approximate the solution. Round to the nearest tenth when necessary.x2 - 6x > 9
A. all real numbers B. -1.2 < x < 7.2 C. no real solution D. x < -1.2 or x > 7.2
Mathematics