Use a calculator to find a decimal approximation for the indicated function values. Round your answer to four decimal places.cos (2.178)
A. -0.1858
B. 0.1858
C. -0.5706
D. 0.5706
Answer: C
Mathematics
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Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.Two numbers total 4, and their difference is 20. Find the two numbers.
A. 12 and - 8 B. 4 and 2 C. 2 and - 18 D. 3 and 1
Mathematics
Use the graph of the function f(x) to find the indicated function value.f(-1)
A. 1 B. 3 C. -3 D. -23
Mathematics
Solve the equation.
= 
- 
A. {0}
B. {1}
C. {39}
D. 
Mathematics
Factor completely, or state that the polynomial is prime.x2y - 9y + 45 - 5x2
A. (y - 5)(x + 3)(x - 3) B. (y + 5)(x + 3)(x - 3) C. (y - 5)(x2 + 9) D. prime
Mathematics