Factor the expression completely. If the polynomial is prime, state this as your answer.64x2 - 1
A. prime
B. (8x + 1)2
C. (8x - 1)(8x + 1)
D. (8x - 1)2
Answer: C
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Use a calculator to approximate the root to the nearest thousandth.
A. 1.419 B. 1.411 C. 1.414 D. 2.000
Show that the sets are equivalent by carefully describing a one-to-one correspondence between the sets.The set of whole numbers and the set of even natural numbers:W = {0, 1, 2, 3, . . . } and E = {2, 4, 6, 8, . . . }.
What will be an ideal response?
Solve and check. Identify any extraneous solutions.
- 
= 
A. 1 (4 is extraneous) B. 4 (1 is extraneous) C. 1, 4 D. 1
Use a proportion to solve the problem.The ratio of the lengths of strings that play the notes D and A is 3 to 2. If a string 45 centimeters long plays a D, what is the length of the string that plays an A?
A. 30 centimeters B. 48 centimeters C. 67.5 centimeters D. 47 centimeters