Eliminate the decimals by multiplying by a power of 10 and then solve.0.70x - 0.20(40 + x) = 0.80(40)
A. 40
B. 70
C. 80
D. 90
Answer: C
Mathematics
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Find the surface area of the surface S.S is the area cut from the plane z = 6y by the cylinder x2 + y2 = 49.
A. 49
?
B. 7
?
C. 49
D. 14
?
Mathematics
A function f(x), a point c, the limit of f(x) as x approaches c, and a positive number ? is given. Find a number 
such that for all x, 0 < 
< ? ? 
< ?.f(x) = 
, L = 3, c = 6, and ? = 1
A. ? = 16 B. ? = 4 C. ? = 7 D. ? = 5
Mathematics
Subtract. Write a mixed numeral for the answer.
A. 7
B. 8
C. 8
D. 7
Mathematics
Find -x for the following.x = - 
A. 
B. - 
C. 
D. - 
Mathematics