Could rlly use help ?
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Mathematics, 22.06.2019 00:30
1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?
Answers: 2
Mathematics, 22.06.2019 02:30
Solve the system of equations. y=3x-1 and y=-2x+9. show work
Answers: 1
Mathematics, 22.06.2019 04:00
Travis has decided to budget his spending money. he can spend no more than $143.15 every month. he has also decided to spend 5.2 times as much money on video games as he spends on the movies.what linear inequality describes this problem
Answers: 2
Mathematics, 22.06.2019 04:20
What is the range of the inverse of the given function f(x)=βx-2
Answers: 2
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