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Mary competes in a long jump con tion. Her first jump is 4.8 m.Her best jump is 10% more than this. However, her best jump is
1. 7 answers
2. 981 views
Heating copper(II) sulfate pentahydrate will evaporate the water from the crystals, leaving anhydrous copper sulfate, a white
1. 4 answers
2. 651 views
A bag contains 8 black marbles and 20 yellow marbles.You reach into the bag and pull out a black marble. Then you reach into the
1. 2 answers
2. 622 views
8. Solve each of the following trigonometric equations and find all solutions in the interval: 0<= θ <=2pif. 2sin^2 x - x - 1 =
1. 4 answers
2. 568 views
Are my answers correct?a. The number of bacteria present in a colony is 180 at 12 noon. The bacteria grows at a rate of 23% per
1. 4 answers
2. 2,341 views
Using system of equations:d. Find the value of two numbers if their sum is 120 and their difference is 40.
1. 1 answer
2. 413 views
For system of equations, how do you know if you have the correct solution?
1. 1 answer
2. 354 views
A car is travelling along the highway at 90km/h. The driver applies the brakes, the braking action causes a frictional force of
1. 5 answers
2. 223 views
Ninhydrin’s composition is 60.68 % carbon, 3.40% hydrogen and 35.92 % oxygen.What is the empirical formula?
1. 2 answers
2. 210 views
What quantity do you get fromvelocity x Δt
1. 1 answer
2. 123 views
8 Zn + S8 --> 8 ZnSif 5.00 g of zinc and 3.00g of S8 are available what is ZnS mass?
1. 3 answers
2. 356 views