Solve the equation by making an appropriate substitution.x4 - 29x2 + 100 = 0
A. {-2, 2, -5, 5}
B. {-2i, 2i, -5i, 5i}
C. {4, 25}
D. {2, 5}
Answer: A
Mathematics
You might also like to view...
Find the area of the geometric figure.Trapezoid
A. 242 sq ft B. 151.25 sq ft C. 60.5 sq ft D. 302.5 sq ft
Mathematics
Solve by completing the square.x2 = 7 - 4x
A. -2 ± 2
B. 2 + 
C. -1 ± 
D. -2 ± 
Mathematics
Write as a single interval.(-6, ?) ? (11, ?)
A. ? B. (11, ?) C. (-6, ?) D. (-6, 11)
Mathematics
Solve the problem.What is the intensity in Watts/m2 of a noise measured at 57 decibels? The level of sound intensity in decibels (dB) is 
where ? (beta) is the number of decibels, I is the sound intensity in W/m2, and I0= 
(Round to the nearest hundredth.)
A. 5.70 × 10-10 W/m2 B. 5.01 × 10-6 W/m2 C. 2.99 × 1014 W/m2 D. 5.01 × 10-7 W/m2
Mathematics