Let x be a number. Translate the English phrase or sentence into a mathematical expression. 76 decreased by a number
A. 76 - x
B. 76 ÷ x
C. x - 76
D. 76 + x
Answer: A
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Use the properties of the trigonometric functions to find the exact value of the expression. Do not use a calculator.sec2 20° - tan2 20°
A. 2 B. 1 C. -1 D. 0
Solve the problem.An airplane travels at 165 km/h for 3 hr in a direction of 174° from a local airport. At the end of this time, how far east of the airport is the plane (to the nearest kilometer)?
A. 4710 km B. 52 km C. 4736 km D. 492 km
Explain why the function is not a polynomial function.f(x) = 
What will be an ideal response?
Use a graphing calculator to answer the question.Consider the absorbing stochastic matrixA = 
Find the stable matrix of A by computing A2, A3, A4, ..., until successive matrices do not change. Round all numbers to four decimal places.
What will be an ideal response?