Mathematics, 06.12.2020 22:40, lilzaya510
Please help me with this question!
Alexa is y years old. Nate is 22 years old, and Alexa is one-half Nate’s age.
Which equation shows an equality between two different ways of expressing Nate’s age?
A) 22 = 2y
B) 22 = 2 + y
C) 22 = 1/2 y
D) 22 = y^2
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Answers: 3
Mathematics, 21.06.2019 18:00, kezin
The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?
Answers: 1
Mathematics, 21.06.2019 20:20, oscarmasinde44
Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.
Answers: 1
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