Solve.The intensity of a radio signal from the radio station varies inversely as the square of the distance from the station. Suppose the the intensity is 8000 units at a distance of 2 miles. What will the intensity be at a distance of 12 miles? Round your answer to the nearest unit.
A. 222 units
B. 205 units
C. 186 units
D. 248 units
Answer: A
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Use the indicated model of multiplication to illustrate the statement.7 × 1 = 1 × 7; number-line model
A. 7 × 1 
1 × 7 
B. 7 × 1 
1 × 7 
Verify the identity.
- 
= cos ? - sin ?
What will be an ideal response?
Find the conjugate of the expression.
- 8
A. -
- 8
B. -
+ 8
C. 8
D. 
+ 8
Solve the problem.Ron attends a cocktail party (with his graphing calculator in his pocket). He wants to limit his food intake to 
protein, 118 g fat, and 159 g carbohydrate. According to the health conscious hostess, the marinated mushroom caps have 3 g protein, 5 g fat, and 9 g carbohydrate; the spicy meatballs have 14 g protein, 7 g fat, and 15 g carbohydrate; and the deviled eggs have 13 g protein, 15 g fat, and 6 g carbohydrate. How many of each snack can he eat to obtain his goal?
A. 9 mushrooms, 4 meatballs, 3 eggs B. 3 mushrooms, 9 meatballs, 4 eggs C. 10 mushrooms, 5 meatballs, 4 eggs D. 4 mushrooms, 3 meatballs, 9 eggs