Mathematics, 17.12.2020 19:10 leahphi
The model has 75 of 100 parts shaded to represent 0.75.
A model divided into 100 parts. 75 are shaded gray.
Amena models the solution to 0.75 – 0.20 by shading in black each of the parts she is subtracting from 0.75. Which models the solution?
A model divided into 100 parts. 75 are shaded gray. 2 are shaded black.
A model divided into 100 parts. 75 are shaded gray. 20 are shaded black.
A model divided into 100 parts. 55 are shaded gray. 20 are shaded black.
A model divided into 100 parts. 73 are shaded gray. 2 are shaded black.
Answers: 1
Mathematics, 21.06.2019 18:00
In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36
Answers: 3
Mathematics, 21.06.2019 19:40
Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297
Answers: 1
Mathematics, 21.06.2019 20:30
What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?
Answers: 2
The model has 75 of 100 parts shaded to represent 0.75.
A model divided into 100 parts. 75 are shad...
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