Mathematics, 06.05.2020 01:25 ayoismeisalex
At a school trivia competition, contestants can answer two kinds of questions: easy questions and hard
questions. Easy questions are worth 3 points, and hard questions are worth 5 points. Chantrea knows
that she correctly answered 21 questions and that she had a total of 79 points. How many hard ques.
tions did she answer correctly?
A. 7
B. 8
C. 12
D. 13
E. 15
Answers: 3
Mathematics, 21.06.2019 23:00, hd14yarnell
Is there a direction u in which the rate of change of f(x, y)equals=x squared minus 3 xy plus 4 y squaredx2−3xy+4y2 at p(1,2) equals 14? give reasons for your answer. choose the correct answer below. a. no. the given rate of change is smaller than the minimum rate of change. b. no. the given rate of change is larger than the maximum rate of change. c. yes. the given rate of change is larger than the minimum rate of change and smaller than the maximum rate of change.
Answers: 2
Mathematics, 21.06.2019 23:00, alyonaprotopopova
What ia the sum if the first 7 terms of the geometric series
Answers: 2
At a school trivia competition, contestants can answer two kinds of questions: easy questions and ha...
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