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Airida [17]
3 years ago
14

How many expressions can you find using and that have a value of 12 a=6 b=4 c=-2

Mathematics
1 answer:
snow_lady [41]3 years ago
3 0

Answer:

Step-by-step explanation:

Some of the expressions that can be derived that have the values of 12 are:

i. 2a = 2 x 6

      = 12

ii. 3b = 3 x 4

        = 12

iii. (b  + c) x a = (4 - 2) x 6

                = 2 x 6

                = 12

iv. 2b + c^{2} = (2 x 4) + (-2 x -2)

                = 8 + 4

                = 12

v. b^{2} -  c^{2} = (4 x 4) - (-2 x -2)

             = 16 - 4

             = 12

vi. c^{4} - b = (-2 x -2 x -2 x -2) + 4

             = 16 - 4

             = 12

             

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Answer:

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Step-by-step explanation:

Given the statement: An observer on top of a 50-foot tall lighthouse sees a boat at a 7° angle of depression.

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Angle of depression = 7^{\circ}

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In triangle CAB:

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Using tangent ratio:

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Here, BC = 50 foot and \angle CAB =7^{\circ}

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