Factor completely. If the polynomial cannot be factored, write "prime."m5- 625m
A. m(m + 5)2(m - 5)2
B. m(m2 + 25)(m + 5)(m - 5)
C. m(m2 + 25)(m2 - 25)
D. Prime
Answer: B
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Solve the problem.A boat is sailing directly toward a lighthouse that is 120 ft tall. The angular size ? of the lighthouse is the angle formed by the lines from the top and bottom of the lighthouse to the observer on the boat, as shown in the figure. What is the rate of change of the angular size d?/dx when the boat is 350 feet from the lighthouse?
A. -0.00088 rad/ft B. -0.00877 rad/ft C. -0.00007 rad/ft D. 0.00450 rad/ft
A building casts a shadow of 12 feet. At the same time a 3 foot yard stick held vertically casts a shadow of 4.5 inches. How tall is the building?
What will be an ideal response?
If possible, simplify the expression. If any variables exist, assume that they are positive.
- 
A. 
B. - 
C. 0
D. 
Express the repeating decimal as a fraction in lowest terms.0.
A. 
B. 
C. 
D. 