Solve using Cramer's rule, if possible. If it is not possible, state whether the system is inconsistent or has infinitely many solutions.
A. (-3, 5)
B. (5, -3)
C. (3, -5)
D. (-5, -3)
Answer: A
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Write the sentence as an equation with x as the input, or independent, variable and y as the output, or dependent, variable. The output is five less than seven times the input.
A) y = 7x + 5 B) y = 7x - 5 C) y = 5x - 7 D) y = 5 - 7x E) y = 5 < 7x
Solve the problem.The loudness b (in decibels) of a sound of intensity I (in watts per square meter) is given by 
Find db/dt for 
watts per square meter and 
watts per square meter per minute.
A. 1.919 decibels per minute B. 0.036 decibels per minute C. 0.833 decibels per minute D. 0.362 decibels per minute
Solve.Find the sale price when the original price is $80.00 at a discount of 41%.
A. $76.72 B. $32.80 C. $47.20 D. $3.28
To find the height of a triangle with side lengths 3 inches, 4 inches and 6 inches, you can use: (a) The Pythagorean Theorem. (b) The Law of Sines. (c) The Law of Cosines. (d) The sine function. (e) Answers (c) and (d) are both needed.
(a) The Pythagorean Theorem. (b) The Law of Sines. (c) The Law of Cosines. (d) The sine function. (e) Answers (c) and (d) are both needed.