Provide an appropriate response.Why is scientific notation used?
What will be an ideal response?
Answers will vary. One possible explanation: Numbers occurring in science are often extremely large or extremely small. Because of the difficulty of working with many zeros, scientists often find it easier to express such numbers with exponents.
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Provide an appropriate response.If a ? 0, 
is called the reciprocal of a. Use this definition to express the reciprocal of the following expression in the form 
Fill in the blank(s) with the appropriate word(s).
Solve the problem.Carry out this multiplication using base five notation. All numerals are already written in base five so that no subscripts are needed.
A. 132 B. 122 C. 312 D. 72
Provide an appropriate response.Solve the system of equations using the addition method: 3x - 5y = 52x + 3y = 16
A. dependent; no solution B. (10, 5) C. inconsistent; no solution D. (5, 2)
Solve the problem.Find all values of k so that the given points are 
units apart. (-5, 5), (k, 0)
A. -7 B. 7 C. 3, 7 D. -3, -7