Solve the matrix equation for X.A = 
, B = 
, AX = B
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Perform the indicated operation. Simplify the answer when possible.5
+ 6
+ 2
- 
A. 18
+ 20
B. 16
+ 32
C. 76
+ 56
D. 78
+ 44
Mathematics
Write the vector v in terms of i and j whose magnitude 
and direction angle ? are given.
= 6, ? = 270°
A. v = -6i - 6j
B. v = -6i
C. v = -6j
D. v = 6
Mathematics
Perform the indicated operation. Simplify the result if possible.30 ft 2 in. ÷ 2
A. 15 ft 1 in. B. 15 ft 2 in. C. 1 ft 15 in. D. 16 ft 1 in.
Mathematics
Use your calculator to approximate the integral using the method indicated, with n = 100. Round your answer to four decimal places.
dx (trapezoidal rule)
A. 147.4106 B. 147.4132 C. 147.4439 D. 148.4132
Mathematics