Find the real numbers x and y that make the equation true.
- 6 = x - 
A. x = -2, y = 2
B. x = 12, y = 2
C. x = -14, y = 2
D. x = -2, y = -2
Answer: C
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Provide an appropriate response.The speed you must travel for a given amount of time depends on the distance you must cover.(a)Write a function r(d) for the speed if the time is 5 hours and the distance covered is d.(b)What is the domain of this function out of context?(c)What is the domain of this function in the given context?(d)Find r(x), r
and r
,.(e)What happens to the speed if the distance is reduced (divided) by a constant c? Describe using an equation.
What will be an ideal response?
Find the requested sum for the arithmetic sequence.a1 = 1, d = -4; S6
A. -54 B. -19 C. 6 D. -23
Find the standard equation of the indicated hyperbola.Center (-2, 4), focus (-2, 10), vertex (-2, 8)
A. 
+ 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Write down all the subsets of the given set.{2, ?, 7, ?}
A. {2}, {?}, {7}, {?}, {2, ?}, {2, 7}, {2, ?}, {?, 7}, {?, ?}, {7, ?}, {2, ?, ?}, {2, 7, ?}, {?, 7, ?}, {2, ?, 7, ?}, ? B. {2}, {?}, {7}, {?}, {2, ?}, {2, 7}, {2, ?}, {?, 7}, {?, ?}, {7, ?}, {2, ?, 7}, {2, ?, ?}, {2, 7, ?}, {?, 7, ?}, {2, ?, 7, ?} C. {2}, {?}, {7}, {?}, {2, ?}, {2, 7}, {2, ?}, {?, 7}, {?, ?}, {7, ?}, {2, ?, 7}, {2, ?, ?}, {2, 7, ?}, {?, 7, ?}, ? D. {2}, {?}, {7}, {?}, {2, ?}, {2, 7}, {2, ?}, {?, 7}, {?, ?}, {7, ?}, {2, ?, 7}, {2, ?, ?}, {2, 7, ?}, {?, 7, ?}, {2, ?, 7, ?}, ?