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Q. Mrs. Cooper asked her math class to keep track of their own grade. Michael, one of the students, lost his assignments, but he remembered the grades of 6 out of 8 assignments: 93, 65, 70, 68, 62 and 84. He also remembered that the mean of his grades for all 8 assignments was 73 and the other two assignments had identical grades. What were the grades on Michael's other two assignments?
Solution:
Let x be the grade for each of the two missing assignments. Since Michael knows the mean of all 8 assignments is 73, we have:
The missing grades were both 71.
compare: 643,251: 633,512: 633,893. The answer is 633,512.
1.)3 3/8 divided by 4 7/8 plus 3 2.)4 1/2 minus 3/4 divided by 2 3/8
1/cos(x-a)cos(x-b)
WHAT TWO SIX DIDGIT NUMBERS CAN YOU ADD 984,357
rouding each number to the nearest half
Trig Substitutions - Integration techniques As we have completed in the last couple of sections, now let's start off with a couple of integrals that we should previously be
A jeweler has bars of 18-carat gold and 12-carat gold. How much of every melted together to obtain a bar of 16-carat gold, weighing 120 gm ? It is given that pure gold is 24 carat.
sdgshyjyu
pythagoras theorem
The law of cosines can only be applied to acute triangles. Is this true or false?
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