This inequality has a symbol:
3

+423

x+2

But the graph of the solution contains...

Mathematics, 15.09.2021 23:20 tiiiiffany

# This inequality has a symbol:
3

+423

x+2

But the graph of the solution contains an open

circle.

-8 -6 -4

-2

0

2

4

6.

8

Explain why the solution does not include x = -2.

Answers: 3

Mathematics, 21.06.2019 16:30

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Answers: 2

Mathematics, 21.06.2019 21:00

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.

Answers: 1

Mathematics, 21.06.2019 22:30

What fraction is equivalent to 0.46464646··· a. 46⁄99 b. 46⁄999 c. 46⁄100 d. 23⁄50

Answers: 1

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