Perform the operations indicated.(3x2 - 4x - 8) + (8x2 - 4x + 3)
A. 11x4 - 8x2 - 5
B. 11x2 - 8x - 5
C. 24x2 - 4x - 5
D. 11x2 - 4x - 5
Answer: B
Mathematics
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Solve the problem.How much pure acid should be mixed with 7 gallons of a 50% acid solution in order to get an 80% acid solution?
A. 10.5 gal B. 17.5 gal C. 28 gal D. 3.5 gal
Mathematics
Factor completely. If the polynomial is prime, state so.81x2 - 144x + 64
A. (9x - 8)2 B. (9x + 8)2 C. (81x + 1)(x + 64) D. (9x - 8)(9x + 8)
Mathematics
Simplify the expression.30
A. Exponent: 0, base: -3 B. Exponent: 0, base: 3 C. Exponent: 3, base: 0 D. Exponent: 1, base: 1
Mathematics
A die is rolled. Find the probability of the specified event.The number showing is a 2.
A. 2
B. 
C. 
D. 
Mathematics