Write both the expression and the result of the expression.the product of 1 and 6
A. expression: 1 × 6; result: 6
B. expression: 7 + 6; result: 8
C. expression: 1 - 6; result: 6
D. expression: 1 + 6; result: 7
Answer: A
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Solve the problem.A ball dropped from the top of a building has a height of s = 256 - 16t2 meters after t seconds. How long does it take the ball to reach the ground? What is the ball's velocity at the moment of impact?
A. 4 sec, -128 m/sec B. 8 sec, -64 m/sec C. 4 sec, 128 m/sec D. 16 sec, -512 m/sec
Answer the question.A teacher gives the same math exam to two different classes. The second class has more students than the first. The mean score for the first class is 50% and the mean score for the second class is 70%. What can you say about the mean score for both classes combined?
A. It is equal to 60%. B. It is higher than 60%. C. It is lower than 60%. D. It may be higher or lower than 60%, this cannot be determined from the information given.
Solve.Melissa invested a sum of money at 3% annual simple interest. She invested three times that sum at 5% annual simple interest. If her total yearly interest from both investments was $5400, how much was invested at 3%?
A. $67,500 B. $22,500 C. $30,000 D. $202,500
Provide the proper response.How many square roots does any positive number have?
Fill in the blank(s) with the appropriate word(s).