Mathematics, 21.02.2021 02:30 QueenThao8933
A group of 14 students plans to participate in a free-throw competition to see how long it takes them to make 30 free-throws. The dot plots show the data before and after training. Which statement is true?
a The mean time the students took to finish the 30 free-throws increased by about 3 seconds after training.
b The mean time the students took to finish the 30 free-throws decreased by about 3 seconds after training.
c The slight difference in the distributions indicates that the training did not significantly change the students' race times.
d The significant difference in the distributions indicates that the training did not significantly change the students' race times.
Answers: 2
Mathematics, 21.06.2019 18:30
Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).
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Mathematics, 21.06.2019 22:00
Rick is driving to his uncles house in greenville,which is 120 miles from ricks town .after covering x miles rick she's a sign stating that greensville is 20 miles away. which equation when solved will give the value of x. a: x+120 = 20 b: x x120 =20 c: x +20 equals 120 d: x x20= 120
Answers: 3
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