Find the dimension of the matrix. Tell if the matrix is a square, column, or row matrix, when applicable.
A. 3 × 1; column
B. 1
C. 1 × 3; row
D. 3
Answer: A
Mathematics
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Find the sum.
+ 
A. 
B. 
C. 
D. 
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Use the given information to find the exact value of the trigonometric function.sin ? = - 
, ? lies in quadrant IV
Find cos 
.
A. - 
B. 
C. 
D. - 
Mathematics
Multiply.25.2747 × 0.001
A. 0.00252747 B. 2527.47 C. 0.0252747 D. 25,274.7
Mathematics
Solve the equation using the quadratic formula. Check your solution.
A. 
B. 
C. 
D. 1, 
E. 
Mathematics