Solve by substitution and check.x + y = 9 y = 2x + 3
A. (7, 2)
B. (2, 7)
C. (3, 6)
D. (1, 9)
Answer: B
Mathematics
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Find parametric equations for the tangent line to the curve with the given parametric equations at the specified point. Select the correct answer.
Mathematics
Simplify.( - 12)2
A. w- 24 + 144
B. w- 12 + 144
C. w2- 24 + 144
D. w+ 144
Mathematics
Write the expression as a constant, a single trigonometric function, or a power of a trigonometric function.tan2? csc2?
A. sec2? B. sin ? C. cos3? D. tan2?
Mathematics
Solve the problem.A certain radioactive isotope has a half-life of 462 years. Determine the annual decay rate, k.
A. 0.15% B. 0.195% C. 0.135% D. 0.265%
Mathematics