Provide an appropriate response.True or false? The equation (7x - 9)2 = -28 has two real solutions. If false, give the correct number of real solutions.
A. True
B. False; zero
C. False; one
D. False; three
Answer: B
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Write the indicated term of the binomial expansion.(3x - 2y)12; 9th term
A. 10,264,320x4y8 B. -5,132,160x8y4 C. -5,132,160x4y9 D. 3,421,440x8y4
Obtain an equivalent system by performing the stated elementary operation on the system. Replace the third equation by the sum of itself and -1 times the second equation. x - 2y - 7z = 17-9x + 8y + 6z = -9 5x + 3y - z = -4
A. x - 2y - 7z = 17 -9x + 8y + 6z = -9 -14x + 5y + 7z = 5 B. x - 2y - 7z = 17 -9x + 8y + 6z = -9 14x - 5y - 7z = 5 C. x - 2y - 7z = 17 14x - 5y - 7z = 5 5x + 3y - z = -4 D. x - 2y - 7z = 17 -9x + 8y + 6z = -9 -4x + 11y + 5z = -13
Solve.Five times the sum of some number and 2 is equal to 7 times the number minus 2.
A. -12 B. 6 C. -6 D. 12
Evaluate the expression.x - 
2, for x = 3 and y = 4
A. -5 B. -61 C. 11 D. 67