5 Questions

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Questions and Answers

- 1.The expression
*a*[*b*+ (*c*–*d*)] is equivalent to:- A.
A. ab + ac – ad

- B.
B. ab + abc – ad

- C.
C. ab + ac – d

- D.
D. ab + c + d

- E.
E. ab + c – d

- 2.What 2 numbers should be placed in the blanks below so that the difference between consecutive numbers is the same
- A.
A. 23, 29

- B.
B. 24, 34

- C.
C. 25, 33

- D.
D. 26, 35

- E.
E. 27, 31

- 3.
- A.
- B.
- C.
- D.
- E.

- 4.So far, a student has earned the following scores on four 100-point tests this grading period: 65, 73, 81, and 82. What score must the student earn on the fifth and last 100-point test of the grading period to earn an average test grade of 80 for the 5 tests?
- A.
75

- B.
76

- C.
84

- D.
99

- E.
The student cannot earn an average score of 80.

- 5.A circle in the standard (
*x*,*y*) coordinate plane is tangent to the*x*-axis at 5 and tangent to the*y*-axis at 5. Which of the following is an equation of the circle?- A.
- B.
- C.
- D.
- E.