Decide if the number is rational or irrational.
A. Rational
B. Irrational
Answer: A
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Determine algebraically whether the function is even, odd, or neither.f(x) = 
A. even B. odd C. neither
Find the exact value of the trigonometric expression without the use of a calculator.sin 15° cos 45° + cos 15° sin 45°
A. 
B. 
C. 
D. 
The sizes of two matrices are given. Find the size of the product AB and the size of the product BA, if the given product can be calculated.A is 2 × 4; B is 4 × 2.
A. AB is 2 × 2; BA cannot be calculated. B. AB cannot be calculated; BA is 4 × 4. C. AB is 4 × 4; BA is 2 × 2. D. AB is 2 × 2; BA is 4 × 4.
Solve the problem.At Allied Electronics, production has begun on the X-15 Computer Chip. The total cost function is given by 
and the total profit function is given by 
, where x represents the number of boxes of computer chips produced. The total revenue function, R(x), is such that 
. Find R(x).
A. R(x) = 43x + 0.3x2 B. R(x) = 43x - 0.3x2 C. R(x) = 45x - 0.3x2 D. R(x) = 42x - 0.6x2