Use factoring to solve the quadratic equation.12x2 = 7x
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Express the number in scientific notation.870,000
A. 8.7 × 105 B. 8.7 × 104 C. 8.7 × 10-4 D. 8.7 × 10-5
Mathematics
Complete the identity.4 sin x cos3 x + 4 sin3 x cos x = ?
A. 2 cos 2x B. 2 cos x C. 2 sin 2x D. 2 sin x
Mathematics
Solve the problem involving related quantities.A 10-ft. board is cut into 2 pieces so that one piece is 6 feet longer than 3 times the shorter piece. Find the lengths of both pieces.
A. shorter piece: 1 ft; longer piece: 9 ft B. shorter piece: 24 ft; longer piece: 30 ft C. shorter piece: 18 ft; longer piece: 36 ft D. shorter piece: 5 ft; longer piece: 30 ft
Mathematics
Solve the equation.3x2 + 2x = 9x
A. x = 0, x = 
B. x = 0, x = - 
C. x = - 
D. x = 
Mathematics