Solve the problem.A wheel with a 40-inch radius is marked at two points on the rim. The distance between the marks along the wheel is found to be 11 inches. What is the angle (to the nearest tenth of a degree) between the radii to the two marks?
A. 13.8°
B. 17.8°
C. 15.8°
D. 11.8°
Answer: C
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Solve. Write the answer in simplest form.A rectangular flower bed in front of a building measures 4
feet by 2
feet. What is the total area of the flower bed? Hint: The area of a rectangle is the product of the length times the width.
A. 13 square feet
B. 8
square feet
C. 11 square feet
D. 12 square feet
The population of a certain community is increasing at a rate directly proportional to the population at any time t. In the last 1 yr, the population has doubled. How long will it take for the population to triple? ? Round the answer to the nearest hundredth, if necessary. ? __________ yr(s)
Fill in the blank(s) with the appropriate word(s).
Express the number in scientific notation.0.000055711
A. 5.5711 × 10-4 B. 5.5711 × 105 C. 5.5711 × 104 D. 5.5711 × 10-5
Translate the sentence to an equation.
less than a number is equal to 3.
A. x - 
= 3
B. x - 
= 3
C. 
- x = 3
D. 
- 3 = x