The index of refraction of light in passing from a vacuuminto dense flint glass is 1.66. If the angle of incidence is 50°,determine the angle of refraction

Q: The cross section of a rivet has a top that is an arc of a circle. If the ends of the arc are 11 mm…

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Q: Find the length of the arc of a circle of diameter 10 meters subtended by a central angle of π5…

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Q: A guy wire 1497 feet long is attached to the top of a tower. When pulled taut, it touches level…

A: Here I am attaching image so that you understand each and every step.

Q: Find the radian measure of the central angle of a circle of radius r =10 inches that intercepts an…

A: To find the radian measurement of the central angle of a circle.

Q: Find the length of an arc on a circle of radius 8 corresponding to an angle of (135/ pi) degrees.…

A: According to the question given values

Q: angle with sec B = %3D

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Q: Find the length of an arc intercepted by a central angle of 0.769 radian on a circle with radius…

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Q: 10 18

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Q: Suppose an angle measures 2.32 radians. What is the related acute angle corresponding to this angle…

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Q: If the length of an arc of a circle of radius 7 is approximately 10.99 cm. What is the measure of…

A: Topic = Circle

Q: what is the measure of arc AB?

A: Let O be centre of circle∵BD is diameter∴∠BOD=180°

Q: Give the corresponding angle in standard position (positive) of -115°.

A: This question is related to angles, we will solve it using given information.

Q: Find the length s of the arc of a circle of radius 49 meters subtended by the central angle 1/7…

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Q: A guy wire 1174 feet long is attached to the top of a tower. When pulled taut, it touches level…

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Q: Find 0 (in radians) for an angle having an arc length of 21 and a radius of 8. 0 = radians Enter

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Q: Determine the exact value of tan(), by using a compound angle formula. Show all work for full marks.

A: It is asked to determine the exact value of By using compound angle formula. A compound angle is…

Q: 18 25

A: We need to find value of x.

Q: What is the reference angle for -238°?

A: We have to find the reference angle of - 238° Then ,  -238° + 360° = 122°  It is II quadrant . So ,…

Q: The length of the arc intercepted by a central angle of 5 radians in a circle of radius 75 is   The…

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Q: 74" 28

A: The given right triangle has length 28 and angle measure 74°

Q: A 22-ft ladder leans against a building so that the angle between the ground and the ladder is 74^∘…

A: The length of the ladder, l = 22 ft The angle between the ground and the ladder, θ = 74° To evaluate…

Q: 8T tan 3.

A: using properties of tanx

Q: Find the length of an arc of a circle with a 8-cm radius associated with a central angle of 240…

A: On solving this we will get

Q: A guy wire 1273 feet long is attached to the top of a tower. When pulled taut, it touches level…

A:

Q: What is the arc measure of minor arc DC in degrees?

A: Aa per vertical angle theorem angles which are opposite to each other and form by intersecting line…

Q: Find the tangent ratio of angle BCK.

A: Fake triangle ABK, We know that total interior angles of a triangle sum up to 180°. A+B+K=180°…

Q: At 828 meters, the Burj Khalifa building in Dubai is the tallest building in the world. When we…

A: First draw the diagram depicting this scenario. Then use the diagram to find the angle of elevation…

Q: Find an angle that is coterminal with a standard position angle measuring 166° that is between 0°…

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Q: A 29-ft ladder leans against a building so that the angle between the ground and the ladder is 80°.…

A: Please refer to the diagram below. The diagram is indicative and not to scale. We have to find AB

Q: What is the angle of elevation of the sun if a 13.2 m vertical pole casts a shadow 51.6 m long on…

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Q: than

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Q: What is the smallest positive degree angle measure equivalent to tan-(0.724)

A: Given  tan−10.724

Q: If the terminal ray of the angle θ passes through the point (−5,2), find the exact value of cscθ

A: Given that the  terminal ray of the angle θ passes through the point (−5,2). Then, there forms a…

Q: To 1 decimal point, what angle has a tan ratio of 0.2589?

A: To find θ in tanθ=0.2589

Q: Define reference angle.

A: Reference angle of an angle is the positive acute angle formed with positive x-axis and the terminal…

Q: Suppose arc DB in the image below measures to be 128 degrees. What is the measurement of angle DCB?…

A: To solve the following problem

Q: 5t cot 4

A: Please refer the attached image for complete solution. THANK YOU.

Q: The terminal ray of angle 0 in standard position passes through the poi calculator in degrees.

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: 12 24

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Q: 2) A spotlight beam sweeps through a horizontal angle of 75.0°. If the range of the spotlight is 250…

A: Given: The Spot light sweeps the circular path. The radius of the circular path is r=250 ft. The…

Q: At what rate is the angle between a clock's minute and hour hands changing at 7 o'clock in the…

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Q: What is the measure in radians of an angle subtended by an arc of a circle which is of its…

A:

Q: A tree 5 m tall casts a shadow 8 m long. To the nearest degree, the angleof elevation of the sun is…

A: Length of tree is = 5 m length of shadow of tree = 8 m we have to find angle of elevation of the sun

Q: What is the angle of elevation to the nearest tenth of a degree to the top of a 35-ft building from…

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Q: Find the tangent ratio of angle BKC.

A: The tangent ratio of ∠BKC is tanK=opposite sideAdjacent side K=45° tan45°=BCBK 1=BCBK

Q: What is the length of an arc cut off by an angle of 3 radians on a circle of radius 8 inches?

A: We first find the circumference of the circle.Circumference= 16 pi inches.

Q: Find the radian measure of the central angle of a circle of radius r =1 meter that intercepts an arc…

A: Given radius r = 1 meter and arc length = 600 centimeters. Angle θ=Arc lengthradius.

Q: Find exact value of cot 22.5° using half-angle formula

A: Givencot(22.5°)