6) y = (3x- 7) Solve by Substitution (Top equation is solved for y.) y = -2x + 4 Substitute the solved equation into the other equation. Solve the equation. X = 11\5 Substitute back into either original equation. y= -2/5 Solution to the system

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Q: Evaluate the expression tan(20); cos(0) %3D

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A: We need to find distance.

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A: Given that equation 2cos2x+cosx-1=0cosx+1cosx-12=0cosx=-1,cosx=12for cosx=-1x=π    x∈[0,2π)

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

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A: We can find the sin and tan values as below

Q: 12) cos² 0 = 1 020 14) 4cot2 0 = 1+ cot? 0 16) 1+3cot2 0 = 4cot? 0-2

A: Topic:- trigonometry

Q: 77T 5. Express in degrees. 60

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Q: Find the slope of the line normal to the curve y x3 – 2x + 1 at x = 2

A: Our Aim is to find the slope of the line normal to the curve y=x3-2x+1-(i) at x=2.

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Q: Solve the equation in radians for all exact solutions where appropriate. Round approximate answers i...

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Q: 1.Find all solutions to the following equations, in exact values - this should be done without using...

A: Basic trignometric equation problem

Q: 10. If your classmate is 6 feet tall and casts a shadow of 4 feet at the same time that the flagpole...

A: Topic = Triangles

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Q: Solve each equation for 0 < 0 < 2n. 1) 4 - csc2 0 = 0 3) sec? 0 – 2 = 0 %3D 5) -3 = -3csc² 0 +1 23c5...

A: As per the guidelines when multiple sub part question are posted in single pic then we are supposed ...

Q: 10. Find the exact value of the composition. cos sin

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Q: 3 and x terminates in quadrant I. V10 Find sin 2x, cos 2.x, and tan 2x if sinx= sin 2.x %3D cos 2x %...

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Q: 777 5. Express in degrees. 60

A: Multiply by 180°/π

Q: 1. Using the figure below, find sin(20) and cos(20). 3 8

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Q: Find the Determinant 10 501 3) 5 25 Determinant %3D

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Q: When t = 0, AP = ..... so sin t will begin at a value of 0. As t increases from 0 to 7T/2, sin t|---...

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Q: 7) 3x + y = 5 Solve by Elimination (Solve an equation for y 2x + y = 10 Substitute the solved equati...

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Q: n the diagram, AB 12. Find AC and BC Write your answers in si: 600

A: Sin60° = perpendicular / hypotenuse       √3/2       = AC/AB        √3/2     = AC/12 AC = 6√3

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Q: Inswen: Find the missing side. .6 Round to the nearest tenth. 8 ст 36° Emly Bracelin Math Sunshinel....

A: Topic:- trigonometry ratios in right angle triangle

Q: Find the length of the given arc. 90°

A: Topic:-  geometry   

Q: the side of the triangle are 70cm, 80cm, 90cm. Compute the length of the altitude to the 80cm side

A: NOTE: Refresh your page if you can't see any equations. . here we have a=70 b=80 c=90  

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A: follow next step

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Q: Find an equation of the ellipse that has center (2, -2), a minor axis of length 6, and a vertex at (...

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Q: A population of rabbits oscillates 17 above and below an average of 142 during the year, hitting the...

A: Given:    Vertical shift (d ) = 142     Amplitude ( a ) = 17    Horizontal shift ( c) = 0     Period...

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Q: 13.) f A=32.2 6=2 of AABC. %3D A. 129.5 vnits? B. 102.8 units C. 64.7 units? D.32.6 units 2.

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Q: x = 4t − 3,    y = 2t,    t is greater than or equal to 0.  Find a rectangular-coordinate equation ...

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Q: Solve the right triangle ABC with a=6 meters, c=10 meters and right angle C

A: Given a=6m, c= 10m and ∠C=90°We know that sides are opposite to the respective angles By pythagorous...

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Q: A flagpole is placed on top of a pedestal which is at a distance of 17 m. from an observer. The heig...

A: distance of flagpole from the observer = 17 m  Height of the pedestal = 20 m the angle subtended by ...

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Q: Find the area (in square units) of each triangle described. 1. а %3D 8, с %3D 16, В %3D 60°

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Q: D. Solve the following equations. Answer (b) 8 cos? x + sin x cos x = 2, 90° <x< 270° x = 123.69° Fo...

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Q: Use the given information and a calculator to find e to the nearest tenth of a degree if 0° <0 < 360...

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Q: Given a = 10 and B = 150° in triangle ABC, determine the values of b for which A has (a) exactly one...

A: Given problem:- Given a = 10 and B = 150° in triangle ABC, determine the values of b for which A has...

Q: 26. Which is the value of angle R if sin R = 0.95586? a. 72°54'47" c. 75°54'47" b. 72°50'47" d. 72°

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