Mark as true any statement that is always true. Mark as false any statement that is never true or that is not necessarily true. Be able to justify your answers.
1. An “exercise” can be solved by simply applying a routine procedure, but a “problem” is not
routine and requires a well-thought-out plan of attack.
2. If there are infinitely many numbers involved in a problem, the Guess and Test problem-solving
strategy is indicated.
3. If 12 coins are arranged in the shape of an equilateral triangle, then there are 5 coins along
each side.
4. If the fourth phase of problem solving,“Looking Back,” we should look for other ways to solve
the problem even if we got the ‘right’ answer.
1. T
2. F—A better choice might be Use a Variable.
3. T
4. T
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Round to the indicated place value.Round to the nearest hundredth: 12.55562
A. 12.556 B. 12.5556 C. 12.57 D. 12.56
Solve the problem.If two cards are drawn without replacement from a deck, find the probability that the second card is a spade, given that the first card was a spade.
A. 
B. 
C. 
D. 
Find the slope-intercept form of the equation of the line with the given properties.Slope = 0; containing the point (-6, 5)
A. y = -6 B. x = -6 C. x = 5 D. y = 5
If possible, write a statement that can be deduced from the following statement. If impossible, write “no deduction possible.” If a triangle has a 90° angle, then it is a right triangle. The sum of ?A and ?B in ?ABC is 90°.
What will be an ideal response?