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22. The value of sin (45°) is approximately equal to a. The square root of two divided by two b. The cube root of two divided by two c. Two divided by square root of two d. The square of two divided by two

22. The value of sin (45°) is approximately equal to a. The square root of two divided by two b. The cube root of two divided by two c. Two divided by square root of two d. The square of two divided by two

Trigonometry (11th Edition)
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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22. The value of sin (45°) is approximately equal to a. The square root of two divided by two b. The cube root of two divided by two c. Two divided by square root of two d. The square of two divided by two 23. Find the area of a triangle with sides 5, 7, and 10 inches. a. 11.05 sq. inches b. 16.25 cu. inches c. 16.25 sq. inches d. 11.05 cu. inches 24. If the height of a pole is 2√3 meters and the length of its shadow is 2 meters, then find the angle of elevation of the sun. a. 50° b. 55° c. 65° d. 60° 25. A ship travels due east to a point 8000 meters from its starting point. It then turns toward the south through an angle of 65° and proceeds until it crosses a line of sight from the starting position to itself that is 35° south of east. At this point, how far is the ship from its starting point? a. 10000 m b. 13500 m c. 15500 m d. 14500 m 26. Calculate the surface area of a sphere with a diameter of 5 meters. a. 78.53 m² b. 78.53 m³ c. 65.44 m² d. 65.44 m³ 27. You own a Rubik's cube with a volume of 343 cm³. What is the edge length of the cube? a. 70.0 cm b. 700 cm c. 7.00 cm d. 7√7cm 28. What is the triangle formed by joining the three points A(-2, 2), B(2, 1), C (1, 3)? a. Right triangle b. Equilateral triangle c. Isosceles triangle d. Scalene triangle 29. Find the slope of the line perpendicular to the line formed by the points (-1,-2) and (7,8). a. -4/7 b. -4/3 C. -5/3 d. -4/5 30. Find the equation of line passing through (2,8) and is perpendicular to the line 3x+5y-25. a y=(2/3)(x)+(14/3) b. y-(4/3)(x)+(14/3) c. y-(5/3)(x)+(14/3) d. y=(x)+(14/3) 31. Find the minimum distance from the point (4, 2) to the parabola y2=8x. a √√3 b. 4√√3 c. 2√2 d. 2√3
Transcribed Image Text:22. The value of sin (45°) is approximately equal to a. The square root of two divided by two b. The cube root of two divided by two c. Two divided by square root of two d. The square of two divided by two 23. Find the area of a triangle with sides 5, 7, and 10 inches. a. 11.05 sq. inches b. 16.25 cu. inches c. 16.25 sq. inches d. 11.05 cu. inches 24. If the height of a pole is 2√3 meters and the length of its shadow is 2 meters, then find the angle of elevation of the sun. a. 50° b. 55° c. 65° d. 60° 25. A ship travels due east to a point 8000 meters from its starting point. It then turns toward the south through an angle of 65° and proceeds until it crosses a line of sight from the starting position to itself that is 35° south of east. At this point, how far is the ship from its starting point? a. 10000 m b. 13500 m c. 15500 m d. 14500 m 26. Calculate the surface area of a sphere with a diameter of 5 meters. a. 78.53 m² b. 78.53 m³ c. 65.44 m² d. 65.44 m³ 27. You own a Rubik's cube with a volume of 343 cm³. What is the edge length of the cube? a. 70.0 cm b. 700 cm c. 7.00 cm d. 7√7cm 28. What is the triangle formed by joining the three points A(-2, 2), B(2, 1), C (1, 3)? a. Right triangle b. Equilateral triangle c. Isosceles triangle d. Scalene triangle 29. Find the slope of the line perpendicular to the line formed by the points (-1,-2) and (7,8). a. -4/7 b. -4/3 C. -5/3 d. -4/5 30. Find the equation of line passing through (2,8) and is perpendicular to the line 3x+5y-25. a y=(2/3)(x)+(14/3) b. y-(4/3)(x)+(14/3) c. y-(5/3)(x)+(14/3) d. y=(x)+(14/3) 31. Find the minimum distance from the point (4, 2) to the parabola y2=8x. a √√3 b. 4√√3 c. 2√2 d. 2√3
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