Provide an appropriate response.After working correctly through several steps of the solution of a linear equation, a student obtains the equation 9x = 8x. Then the student divides each side by x to get 9 = 8 and gives ? as the answer. Is this correct? If not, explain why.
What will be an ideal response?
Answers will vary. This is not correct to divide by a variable. If -8x is added to both sides, the equation becomes -x = 0, so x = 0 and {0} is the correct solution set.
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Solve the problem.If the force acting on an object stays the same, then the acceleration of the object is inversely proportional to its mass. If an object with a mass of 60 kilograms accelerates at a rate of 
per second per second by a force, find the rate of acceleration of an object with a mass of 
that is pulled by the same force.
A. 30 m/sec2
B. 27 m/sec2
C. 
m/sec2
D. 20 m/sec2
Find the actual difference.-9.7 - 7.4
A. 2.3 B. 17.1 C. -17.1 D. -2.3
Solve the problem. Round to the nearest tenth, if necessary.The diagram below shows the side view of a plan for a slanted roof. Find the unknown length in this roof plan.
A. 10.8 ft B. 5.4 ft C. 7 ft D. 58 ft
Graph the function.y = 3 cot
A. 
B. 
C. 
D. 