Simplify each expression, and write it by using a radical. Assume that all variables are positive. SOlve all they connect 66. (-8x) 69. (a*b*)š 67. 54x4 68. (-12r") 71. a*(46°) 70. a) h.

Q: 3.J 8. 5/°

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A: Find a valid equation that can be help in finding the value of x from the given diagram.

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A: Law of cosines  a2=b2+c2−2bc⋅cosAb2=a2+c2−2ac⋅cosBc2=a2+b2−2ab⋅cosC

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A: Given-  To Find- The length of the unknown variable in the above right angle triangle.

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Q: Solve the equation. If there is more than one solution, separate them with a comma. |4x – 6| = 26…

A: Given : 4x-6 = 26

Q: Solve for x (use law of cosines) 6. 10 130.5 degrees 80.4 degrees O 60.3 degrees O 117.1 degrees

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Q: Solve the following radical equation. Be sure to check your solutions. X = V7x + 8

A: Square both sides then solve the quadratic and finally satisfy the solution in the original equation…

Q: Evaluate and express your final answer in rectangular form: 3e5i . 2e4i

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Q: Solve the given

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Q: 20. Use the Law of Cosines to solve for x 21 26 16

A: In a triangle with side lengths a,b,c; according to cosine law: c2=a2+b2-2abcosα where α is the…

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A: The solution is:

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Q: 14 2. 4. 11 00

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A: To solve this problem we use the following formulae : sin(θ) = Opposite / Hypotenuse  cos(θ) =…

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Q: 55. 3x/2 dx

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Q: A. Solve each right triangle. 30 50°

A: Given a right triangle JKL right angled at K, ∠ LJK = 50∘  Therefore, ∠ JLK = 180∘ - 90∘ - 50∘ = 40∘…

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Q: Find the value of x. Give your answer in simplest radical form. 47. 2 48. 14 6. 8. CO

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Q: find the distance between the two points. Express the answer in simplest radical form. (8, 0) and…

A: To find distance between given two points: (8,0) and (3,4) Solution: We know, Distance d between two…

Q: Solve for the missing side in the special right triangle. (Leave your answer in simplified radical…

A: We will use : In a right-angle angle triangle, tanθ = Side opposite to angle θAdjacent side to angle…

Q: 19. Use the Law of Cosines to solve for x. 23 52° 30

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Q: 7. (x – 3)² = -12 Write the expression as a cor

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