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monitta
3 years ago
15

WILL MARK BRAINLIEST

Mathematics
1 answer:
mars1129 [50]3 years ago
8 0

Answer:

B

Step-by-step explanation:

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Two lines have the given equations. Use the LINEAR COMBINATION METHOD to solve.
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Using linear combination method, the solution to given system of equations are (-7, -15)

<h3><u>Solution:</u></h3>

Linear combination is the process of adding two algebraic equations so that one of the variables is eliminated

Addition is used when the two equations have terms that are exact opposites, and subtraction is used when the two equations have terms that are the same.

<u><em>Given system of equations are:</em></u>

2x - y = 1  ---- eqn 1

3x - y = -6 ------ eqn 2

Subtract eqn 2 from eqn 1

2x - y = 1

3x - y = -6

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-x = 7

<h3>x = -7</h3>

Substitute x = -7 in eqn 1

2(-7) - y = 1

-14 - y = 1

y = -14 - 1 = -15

<h3>y = -15</h3>

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3 years ago
A pilot has just started on the glide path for landing at an airport with a runway of length 9000 feet. The angles of depression
ki77a [65]

Answer:

a. See attachments

B. 163630.2ft

C. 147056.70ft

D. 49205.4ft

Step-by-step explanation:

Check attachments for details

Angle a.. Angle of dep to beginning of runway

Angle b... Angle of del to end of runway

AD... Altitude of plane

DB..... Ground distance before touch down

AC... Air distance travelled until touch down on the near end of runway

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Answer:

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Step-by-step explanation:

if there's a negative and a positive the result will be negative

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-1 × +1 = -1

+1 × +1 = +1

-1 × -1 × -1 = -1

-1 × -1 × +1 = +1

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Step-by-step explanation:

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