Find the number.Seven times a number, added to -6, is -27.
A. 3
B. -21
C. -147
D. -3
Answer: D
Mathematics
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Simplify. Assume that variables can represent any real number.
A. 5
k2
q4
B. 5
k3q4
C. 5k3q4 
D. 5
k2
q8
Mathematics
Use the given information about an earthquake to find the missing values.Use the magnitude M to find (a) the earthquake intensity I in terms of the zero-level earthquake intensity I0 and (b) the energy released by the earthquake.M = 6.3
A. (a) 2.0 × 107 I0 (b) 1.99 × 1023 B. (a) 2.0 × 105 I0 (b) 7.05 × 1011 C. (a) 2.0 × 106 I0 (b) 7.05 × 1013 D. (a) 2.0 × 1016 I0 (b) 7.05 × 1012
Mathematics
Approximate the expression to the nearest thousandth.2.9(42) - 2(6) + 6
A. -32.6 B. 46.4 C. 34.4 D. 40.4
Mathematics
Graph the function.F(x) = x3 + 4
A. 
B. 
C. 
D. 
Mathematics