Substitute the given values into the formula and then evaluate to find the unknown quantity. Label units in your answer. If the answer is not exact, round your answer to the nearest hundredth.Z = 
; R= 500 ?, XL = 25.3 ?, XC = 472 ?
A. 670.50
B. 670.48
C. 640.47
D. 650.46
Answer: B
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Replace the polar equation with an equivalent Cartesian equation.r = 
A. 
+ 
= 1
B. 2y - 5x = 1
C. 2x - 5y = 1
D. 
= 1
Use a ruler, protractor, and compass to construct, when possible, a triangle with the stated properties. Determine whether one triangle can be constructed, two or more noncongruent triangles can be constructed, or no triangle can be constructed.A triangle with angles measuring 22° and 105° and a nonincluded side of length 16 cm.
A. Two or more noncongruent triangles can be constructed. B. No triangle can be constructed. C. Exactly one triangle can be constructed.
Use a proportion to solve the problem.A building casts a shadow 39 m long. At the same time, the shadow cast by a 41-cm tall pole is 53 cm long. Find the height of the building. Round your answer to the nearest tenth of a meter.
A. 48.9 m B. 50.4 m C. 28.7 m D. 30.2 m
Solve the problem.A fossilized leaf contains 12% of its normal amount of carbon 14. How old is the fossil (to the nearest year)? Use 5600 years as the half-life of carbon 14.
A. 36,108 B. 1031 C. 17,099 D. 20,040