Decide whether the given number is a solution of the given equation.Is 4 a solution of 6x - 5 = 47 - 7x?
A. yes
B. no
Answer: A
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Solve the equation.(10 + x)1/2 + (11 - 5x)1/2 = -1
A. 
B. {0}
C. ?
D. {1}
Solve the problem.List all the combinations of 6 objects a, b, c, d, e, and f taken 2 at a time. What is C(6, 2)?
A. aa, ab, ac, ad, ae, af, ba, bb, bc, bd, be, bf, ca, cb, cc, cd, ce, cf, da, db, dc, dd, de, df, ea, eb, ec, ed, ee, ef, fa, fb, fc, fd, fe, ff C(6, 2) = 36 B. ab, ac, ad, ae, af, bc, bd, be, bf, cd, ce, cf, de, df, ef C(6, 2) = 15 C. ab, ac, ad, ae, af, ba, bc, bd, be, bf, ca, cb, cd, ce, cf, da, db, dc, de, df, ea, eb, ec, ed, ef, fa, fb, fc, fd, fe C(6, 2) = 30 D. ab, ac, ad, ae, bc, bd, be, cd, ce, cf, de, df C(6, 2) = 12
Insert <, >, or = to make the statement true.-2 
-2
A. > B. < C. =
Decide whether the statement is true or false. If false, correct the statement so it is true.
= 
A. True
B. False; 
= -
= -1