Solve the problem.A circular pond is being installed in the corner of a yard, as shown. The installer needs to know the value of x in feet. Find x to the nearest tenth of a foot. 
?a = 43 ft
A. 2.7 ft
B. 3.4 ft
C. 3 ft
D. 3.6 ft
Answer: C
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Mark as true any statement that is always true. Mark as false any statement that is never true or that is not necessarily true. Be able to justify your answers.
1. An “exercise” can be solved by simply applying a routine procedure, but a “problem” is not routine and requires a well-thought-out plan of attack. 2. If there are infinitely many numbers involved in a problem, the Guess and Test problem-solving strategy is indicated. 3. If 12 coins are arranged in the shape of an equilateral triangle, then there are 5 coins along each side. 4. If the fourth phase of problem solving,“Looking Back,” we should look for other ways to solve the problem even if we got the ‘right’ answer.
Find the point from those given that has the given property.The point where the slope of the tangent is least
A. (-0.84,2.01) B. (1.68,0.13) C. (0.84,2.01)
Simplify the expression. Write the answer with only positive exponents. Assume that all variables represent positive real numbers.
A. 33 x5
B. 3 x6
C. 
D. 
The function f(x) changes value when x changes from x0 to x0 + dx. Find the approximation error 
. Round your answer, if appropriate.f(x) = 
, x0 = 9, dx = 0.05
A. -0.00001 B. 0.00001 C. 0.00835 D. -0.00835