Which of the following indicates an operational view of the equal sign?
a. Comparing the equal sign to the fulcrum of a balance scale
b. Solving a system of equations by using substitution
c. Confusing the "-" sign with the "=" sign
d. Putting a "5" in the blank for the number sentence 3 + 2 = __ + 7
Ans: d
Mathematics
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Subtract.5.12 - 3.11
A. 2.11 B. 9.23 C. 2.01 D. 8.23
Mathematics
Simplify. Assume that no radicands were formed by raising negative quantities to even powers.-7
- 5
A. -88
B. 38
C. 88
D. -38
Mathematics
Identify the intercepts.
A. (-2, 0), (0, 6) B. (-6, 0), (0, 6) C. (2, 0), (0, -6) D. (2, 0), (0, 6)
Mathematics
Let U = { 3, 6, 9, 12, 15, ... } and p(x) be the open statement "x is even". Determine the truth value of the given statement.[?x p(x)] ? [?x (p(x) ? ~p(x))]
Fill in the blank(s) with the appropriate word(s).
Mathematics