Determine whether matrix B is the inverse of matrix A by finding the product AB.A = 
, B = 
A. B ? A-1
B. B = A-1
Answer: B
Mathematics
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Divide and simplify.
÷ 
A. 5x2 + 5x
B. 
C. 
D. 5x2
Mathematics
The given point lies on the graph of the unit circle and corresponds to a real number t. Find the value of the indicated trigonometric function of t.
Find sin t.
A. - 
B. - 
C. - 
D. 
Mathematics
Use the rules of exponents to simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive real numbers.(
)2(s-1/8y1/6)-4
A. 
B. 
C. 
D. 
Mathematics
Find the domain and range of the function.f(x) = -x2 - 12x - 45
A. Domain: (-?, ?); Range: (-?, -9] B. Domain: (-?, -9]; Range: [6, ?) C. Domain: (-?, ?); Range: [9, ?) D. Domain: (-?, ?); Range: (-?, 6]
Mathematics