Find the reference angle for the given angle.-240°
A. 150°
B. 60°
C. 30°
D. 120°
Answer: B
Mathematics
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Find the gradient field F of the function f.f(x, y, z) = 
A. F = 
i + 
j + 
k
B. F = - 
i - 
j - 
k
C. F = - 
i - 
j - 
k
D. F = 
i + 
j + 
k
Mathematics
Solve.A yogurt shop offers two different flavors of frozen yogurt and four different toppings. How many choices are possible for a single serving of frozen yogurt with one topping?
A. 12 B. 10 C. 8 D. 6
Mathematics
Determine the amplitude and range of the function and sketch its graph.y = 5 cos x
A. amplitude: 5; range: [0, 5]
B. amplitude: 5; range: [0, 5]
C. amplitude: 5; range: [-5, 5]
D. amplitude: 5; range: [-5, 5]
Mathematics
Solve the equation.
- 4 = 0
A. {16} B. {64} C. {61} D. {13}
Mathematics