The high temperatures in Weston for 7 consecutive days were −14°C, −10° C, −3°C, 6°C, 8°C, −4°C, and −11°C. What was the average high temperature for the 7 days?
Question 3
3.
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Question 4
4.
A submarine is descending to examine the seafloor 2,100 feet below the surface. It takes the submarine 2 hours to make this descent. Write an equation to represent the relationship between the submarine's elevation and time.
Question 5
5.
Another submarine’s descent can be represented as y = -240x, where "y" is the elevation and "x" is time in hours. How long will it take this submarine to make the descent? (Note: the total elevation/depth is same as previous problem, 2100 ft.)
Will the sign of the product of two negative numbers be negative or positive? Explain your answer.
Cannot tell; the sign depends on the absolute values of the factors.
Negative; if either of the factors is negative, their product is negative.
Negative; if the signs of the two factors are the same, their product is negative.
Positive; if the signs of the two factors are the same, their product is positive.