Use a graphing calculator to solve the equation. Round your answer to two decimal places.ex = x2 - 1
A. {2.54}
B. {-0.71}
C. {0}
D. {-1.15}
Answer: D
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Solve.The orbit of a planet, in a galaxy far, far away, is an ellipse. If the center of the ellipse is at the origin, an approximate equation for the orbit is 
+ 
= 1, where x and y are measured in millions of miles. Find the largest possible distance across the ellipse. Round the answer to the nearest million miles.
A. 13,710 million miles B. 117 million miles C. 83 million miles D. 166 million miles
Find the area of the region that lies inside the first curve and outside the second curve. Select the correct answer.
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If R is the set of real numbers, Q is the set of rational numbers, I is the set of integers, N is the set of natural numbers, and S is the set of irrational numbers, list the set(s) to which the given number belongs. If the number does not belong to any, state none.3
A. Q B. S, R C. I, Q, R D. Q, R
Use a half-angle formula to find the exact value of the expression.sin 
A. - 
B. 
C. - 
D. 
