Solve the equation. Check your solution.3x - 7(3 + x) = -4(x + 7)
A. all real numbers
B. ?
C. {-28}
D. {-21}
Answer: B
Mathematics
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Multiply and write the answer in scientific notation.(5.8 × 10-4)(8.7 × 107)
A. 14.5 × 1011 B. 1.62 × 103 C. 5.046 × 104 D. 5.046 × 103
Mathematics
Verify the integration formula.
ln x tanh-1 (ln x) + 
ln (1 - (ln x)2)+ C
A. Yes B. No
Mathematics
Graph the line described.through (-3, -10); m = 5
A. 
B. 
C. 
D. 
Mathematics
Find the first term and the common ratio of the geometric sequence.
, 
, 
, 
, 
, . . .
A. a1 = 4, r = 12
B. a1 = 
, r = 4
C. a1 = 4, r = 
D. a1 = 
, r = 
Mathematics