Use a product-to-sum identity to rewrite the expression.sin 
sin 
A. 0.5
B. 0.5
C. 0.5
D. 0.5
Answer: D
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The figure shows the graph of a function. At the given value of x, does the function appear to be differentiable, continuous but not differentiable, or neither continuous nor differentiable?x = 1
A. Differentiable B. Continuous but not differentiable C. Neither continuous nor differentiable
Solve the problem.A vector F represents a force that has magnitude 4 pounds, and 35° is the angle for its direction. Find the work done by the force in moving an object from the origin to the point (7, 0). Distance is measured in feet. Round the answer to one decimal place, if necessary.
A. 16.1 ft-lb B. 22.9 ft-lb C. 24.2 ft-lb D. 45.9 ft-lb
The graph of a certain function y = f(x) and the zero of that function is given. Using this graph, find a) the x-intercept of the graph of y = f(x) and b) the solution to the equation f(x) = 0.
A. a. -6 b. x = -6 B. a. -5 b. x = 0 C. a. -5 b. x = -5 D. a. 0 b. x = -5
Find the nonreal complex solutions of the equation. Write your answer in standard form.(x - 7)2 = -98
A. {-7 ± 7i
}
B. {7 ± 7i
}
C. {7 ± 7
}
D. {± 7i - 7
}