Solve the system by using the inverse of the coefficient matrix. 2x1 - 6x2 = -6 3x1 + 2x2 = 13
A. (-2, -3)
B. (2, 3)
C. (-3, -2)
D. (3, 2)
Answer: D
Mathematics
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Solve the problem.A shirt company has 4 designs that can be made with short or long sleeves. There are 7 color patterns available. How many different types of shirts are available from this company?
A. 28 B. 56 C. 11 D. 13
Mathematics
Indicate whether the statement is true or false.When zero is subtracted from the set of whole numbers, the set of natural numbers is formed.
A. true B. false
Mathematics
Use the fundamental identities and appropriate algebraic operations to simplify the expression.sin2 x(cot2 x + 1)
A. 1 B. -1 C. tan2 x D. cos2 x + 1
Mathematics
Use a calculator to find the approximate value of the composition. Round answers to four decimal places, if necessary.tan (tan-1 (-8.4))
A. -5.3 B. -8.4 C. 11.5 D. 8.4
Mathematics