Find the directrices of the hyperbola.49x2 - 16y2 = 784
A. y = ± 
B. x = ± 
C. y = ± 
D. x = ± 
Answer: D
Mathematics
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Set up an integral for the length of the curve.y = 3 cos x, 0 ? x ? ?
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Consider the linear equation in three variables x - y + z = 5. Find a pair of linear equations that, when considered together with the given equation, will form a system having no solution.
What will be an ideal response?
Mathematics
Write the sentence as an equation. Use x to represent "a number."Five times the sum of a number and -65 gives -20.
A. 5x + (-65) = -20 B. 5 + x + (-65) = -20 C. x + 5(-65) = -20 D. 5[x + (-65)] = -20
Mathematics
Sketch the polar graph. r = 3
What will be an ideal response?
Mathematics