Solve the problem.A simple exercise machine can be constructed by mounting a stiff spring securely to a wall and attaching a "T" handle to the free end of the spring. The arms can be exercised simply by pulling the "T" handle towards the torso. For a particular spring, the stretch distance is related to the work exerted by the equationx = 
,
where W is the work exerted in joules and x is the stretch distance in cm. How far will you stretch the spring if you exert 698 joules of work? Round your answer to three decimal places.
A. 0.016 cm
B. 0.128 cm
C. 0.091 cm
D. 0.136 cm
Answer: B
Mathematics
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Solve the problem.Which of the lines in the picture are lines of symmetry of the given figure?
A. q, r, s and t B. Only s C. r, s and t D. q and s
Mathematics
Consider the set 
of natural numbers and an operation 
which means select the first of the two. That is,
?
?
Is associative for ? Answer yes or no.
What will be an ideal response?
Mathematics
Solve triangle ABC. If necessary, round the answer to the nearest tenth. 
A. C = 45°, a = 26.8 ft, c = 21.9 ft B. C = 50°, a = 26.8 ft, c = 21.9 ft C. C = 45°, a = 21.9 ft, c = 26.8 ft D. C = 40°, a = 21.9 ft, c = 26.8 ft
Mathematics
Find functions f and g so that f ? g = H.H(x) = 
A.
| f(x) = x2 - 7; | g(x) =  |
B.
f(x) =  ; | g(x) = x2 - 7 |
C.
f(x) =  ; | g(x) = x - 7 |
D.
f(x) =  ; | g(x) = - 1/7 |
Mathematics