Calculate the standard score (z-score) of the given sample mean. Round your answer to two decimal places. μ=31 and σ=9; n=64; x¯=30
21. Three lines have these equations: Line m: y = y=²x-7 Line n: y = -x + 1) 3 Line p: y = -x + 4 Identify the relationship between each pair of lines. (Lesson 3-8)
Spot Robin says, "I can find 6 x 9 by multiplying 4 x 9 and doubling it." Does her statement make sense? Justify your answer.
8. If a population doubles every 5 years, how many years will it take for the population to increase by 10 times its original amount? First: If the population gets multiplied by 2 every 5 years, what does it get multiplied by each year? Use this to help you answer the question.
A ball is kicked with an initial velocity of 15 m/s in the horizontal direction and 18 m/s in the vertical direction. (Assume the ball is kicked from the ground.) At what speed (in m/s) does the ball hit the ground? For how long (in s) does the ball remain in the air? What maximum height (in m) is attained by the ball?
HELP PLS GIVING BRAINLIEST TO PERSON WHO ANSWERS FIRST A rental car company charges $26.03 per day to rent a car and $0.13 for every mile driven. Malik wants to rent a car, knowing that: He plans to drive 250 miles. He has at most $350 to spend. Which inequality can be used to determine d, the maximum number of days Malik can afford to rent for while staying within his budget?
A line passes through points at (9, 5) and (4, 3). What is the slope of the line perpendicular to this line? (Lesson 3-8)
