30. In any triangle ABC, prove that : 1+cos(A-B) cos C a2 + b2 (7) 1+cos(A-C) cos B %3D a2 +c2

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Q: Factor -362 + 156+ 18 | O-3 (b+ 1) (b – 6) O-3 (b– 1) (b +6) O-3 (b- 2) (b+ 3) O-3 (b+ 2) (b – 3)

A: -3b2+15b+18=-3(b2-5b-6)

Q: 5-perform the fllowing using sientific notatison: a) 6300 +7S000 Ans: 81-3 Ans: 23-5+ b2 Ans: 9\ Do....

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A: Topic = Algebra

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A: Given  9 q^2 -5 = 4

Q: Graph a > 0. +- -5 -4 -3 -2 -1 0 1 2 3 4 5 Switch direction Make circle open

A: Topic = inequality

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A: the Gaussian elimination method is known as the row reduction algorithm for solving linear equations...

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A: Let's find. 

Q: Algebra 1 Lab Linear vs. Exponential Arithmetic Sequence: Add or Subtract the same value between eac...

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Q: 14. Give an example of a point that belongs the area determined by 2x + 7y > 1,x 0.

A: Given

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A: Given query is to find the value of the function at indicated value of x.

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A: Find your answer below 

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Q: 3. Write an inequality that best represents the graph. (0, 0) y ¿x - 3 А. х — | В. | С. У 2х — 3 O A...

A: Equation

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Q: 2x - 2 S(x) = 2x-5 %3D

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Q: 2(x + 9)° 2. 142

A: Given figure is

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Q: ±V36

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A: Let the distance that a person can see to the horizon from a point above the earth's surface be:  y ...

Q: Factor the following. Show your check. 8x2 112x + 360

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Q: Multiply one of the equations to make common coefficients, then subtract the equations and solve. 7x...

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Q: 35 = 34- 10

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Q: 14. A plane traveled 840 miles to Rome, and back. The trip there was with the wind. It took 10 hours...

A: Let's find. 

Q: PRACTICE SET 3: APPLY & EXTEND LEARNING Oirections: Neatly show all of your work in an organized way...

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Q: 5. Choose the correct answer. Rebecca purchased a total of 7 books and toys for the Woodbine play sc...

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Q: Which of the following regions (I, II, III, or IV) formed by the intersection of two linear inequali...

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Q: Graph x >-2.

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Q: Kim is 6 years more than twice Timothy's age. 2 years ago, Kim was three times as old as Timothy. Ho...

A: Suppose , Present age of Timothy=x years and Present age of Kim=y years

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Q: Write (8a-) in simplest form.

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Q: zeros: solutions: roots: x-intercents:

A: Given query is to find value indicated points from the graph.