Solve the problem.On an 18-hole golf course, there are par-3 holes, par-4 holes, and par-5 holes. A golfer who shoots par on every hole has a score of 75. The sum of the number of par-3 holes and the number of par-5 holes is 11. How many of each type of hole are there on the golf course?
A. Par-3: 3; par-4: 8; par-5: 7
B. Par-3: 4; par-4: 7; par-5: 7
C. Par-3: 3; par-4: 7; par-5: 8
D. The numbers cannot be determined from the given information.
Answer: B
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Solve the variation problem.The intensity I of light varies inversely as the square of the distance D from the source. If the intensity of illumination on a screen 5 feet from a light is 4 foot candles, find the intensity on a screen 20 ft from the light.
A. 2 foot-candles
B. 1
foot-candles
C. 
foot-candles
D. 
foot-candles
Solve the equation. Identify the equation as an identity, an inconsistent equation, or a conditional equation.
+ 
+ 
= 7
A. Inconsistent, ?
B. Conditional, 
C. Identity, {t
}
D. Conditional, 
Simplify. Combine like terms if possible.-3n - (-n)
A. -2n2 B. -3n2 C. -4n D. -2n
Determine whether the graph of the function is the graph of a one-to-one function.
A. Yes B. No