Subtract. Simplify, if possible.
- 
A. 
B. 
C. - 
D. 0
Answer: A
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Find the standard-form equation of the hyperbola centered at the origin which satisfies the given conditions. Foci at (
, 0), (-
, 0); asymptotes y = 4x, y = -4x
A. 
- x2 = 1
B. 
- y2 = 1
C. y2 - 
= 1
D. x2 - 
= 1
Maude and Matilda each have a bank CD. Maude's is $1000 larger than Matilda's, but Maude's interest rate is 5% less. Last year Maude received interest of $440, and Matilda received $585. Find the rate of interest for each CD. ? Please enter your answer as two percents without the percent signs, separated by a comma.
What will be an ideal response?
Complete the square and write the equation in standard form. Then give the center and radius of the circle.x2 + 18x + 81 + y2 - 8y + 16 = 81
A. (x + 9)2 + (y - 4)2 = 81 (9, -4), r = 81 B. (x - 4)2 + (y + 9)2 = 81 (4, -9), r = 9 C. (x - 4)2 + (y + 9)2 = 81 (-4, 9), r = 81 D. (x + 9)2 + (y - 4)2 = 81 (-9, 4), r = 9
Find the mean of the set of data. Round to the nearest tenth.3, 9, 14, 3, 3, 13, 14, 13, 13, 9, 14, 9, 13
A. 11.0 B. 10.3 C. 10.1 D. 10.0