Determine whether the matrix is regular.
a. Not regular
b. Regular
a. Not regular
Mathematics
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Find the vertex of the parabola.y = x2 - 8 x - 2
A. (-4, -18) B. (-4, -21) C. (4, -18) D. (4, -21)
Mathematics
Use a calculator to find the value. Give answers as real numbers and round to 4 decimal places, if necessary.cot (-arcsin ?)
A. Undefined B. -0.0009 C. 0 D. -1094.771
Mathematics
Find the exact value of the expression, if possible. Do not use a calculator.tan (tan-1 (-9.2))
A. 9.2 B. -6.1 C. 12.3 D. -9.2
Mathematics
Solve the equation.6x + 2 = 26
A. x = 2 B. x = 22 C. x = 18 D. x = 4
Mathematics