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Julli [10]
3 years ago
12

1. If m = 2, find the value of: (i) 3m - 5 (ii) 9-5m

Mathematics
2 answers:
pshichka [43]3 years ago
5 0

Answer:

(i) 3x2-5=6-5= 1

(ii) 9-5x2=9-10= -1

hope it helps!

expeople1 [14]3 years ago
4 0

Answer:

3m-5=3×2-5

=6-5

=1

9-5m= 9-5×2

=9-10

= -1

Step-by-step explanation:

You should put the value of m

then by following BODMAS RULE

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Horizontal stadia sights. Determine the error in distance if the uppermost portion of a 3. 0m long stadia rod is inclined 14 cm
jek_recluse [69]

The error in the distance if the uppermost portion of a 3. 0m long stadia rod is inclined 14 cm toward the observer and the rod intercept is 1. 75m on a horizontal sight is 8.167cm.

<h3>What is Tangent (Tanθ)?</h3>

The tangent or tanθ in a right angle triangle is the ratio of its perpendicular to its base. it is given as,

Tan(θ) = Perpendicular/Base

where,

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Perpendicular is the side of the triangle opposite to the angle θ,

The base is the adjacent smaller side of the angle θ.

Given the uppermost portion of a that is 3.0m long stadia rod is inclined 14 cm toward the observer, therefore, the angle of inclination, θ can be written as

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Also, the rod intercept is 1.75m, therefore, t the error in distance in the distance is,

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Hence, the error in the distance if the uppermost portion of a 3. 0m long stadia rod is inclined 14 cm toward the observer and the rod intercept is 1. 75m on a horizontal sight is 8.167cm.

Learn more about Tangent (Tanθ):

brainly.com/question/10623976

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