Provide an appropriate response.Decide whether the elimination method or the substitution method involves the least amount of work. Do not solve.x + 2y = 0x - 2y = 24
A. Elimination
B. Substitution
Answer: A
Mathematics
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Use the slopes of UQ, UR, US, and UT to estimate the rate of change of y at the specified value of x.x = 2
A. 6 B. 4 C. 0 D. 3
Mathematics
Solve the problem.The function A described by A(r) = 4?r2 gives the surface area of a sphere with radius r. Find the area when the radius is 1 in.
A. 37.7 in.2 B. 3.14 in.2 C. 4 in.2 D. 12.57 in.2
Mathematics
Subtract and simplify.
- 
A. 
B. 
C. 
D. 
Mathematics
A study reported by Science News (Nov,26,2005) found that 25% of all medication taken in space is sleeping pills. Write this percent as a fraction and as a decimal.
Mathematics