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# MTH 209 Week 3 some problems.

Week 3 Study guide
Which numbers cannot be used in place of the variable in each
rational expression?
44.

Section 6.2
Perform the indicated operation.

70.

Section 6.4

Rational Expressions

28.

Perform the indicated operation. Reduce each answer to
lowest terms.

40.
56.

Section 6.6

solve

42.
74. Rectangular stage. One side of a rectangular stage is 2 meters longer than the other. If the diagonal is 10 meters, then what are the lengths of the sides?

Throwing a wrench. An angry construction worker throws his wrench downward from a height of 128 feet with an initial velocity of 32 feet per second. The height of the wrench above the ground after t seconds is given by

a) What is the height of the wrench after 1 second?
b) How long does it take for the wrench to reach the
ground?

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