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3 years ago

Braden bought 18 pencils for $4.50.

Mathematics

1 answer:

AnnyKZ [126]3 years ago

5 0

Braden bought 18 pencils for $4.50.

If x represents the number of pencils purchased, and y represents the total cost, then

x=18,

y=4.50

and

point (x,y) will have coordinates (18,4.5).

Answer: (18,4.5).

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Length of right-angle triangle 'a' = 4

$sin(A) = \frac{opposite side}{Hypotenuse} = \frac{a}{c} = \frac{4}{5}$

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Step-by-step explanation:

Step(i):-

Given b = 3 and hypotenuse c = 5

Given ΔABC is a right angle triangle

By using pythagoras theorem

c² = a² + b²

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⇒ a² = 5²-3²

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Step(ii):-

$sin(A) = \frac{opposite side}{Hypotenuse} = \frac{a}{c} = \frac{4}{5}$

$cos(A) = \frac{Adjacent side}{Hypotenuse} = \frac{b}{c} = \frac{3}{5}$

$tan(A) = \frac{opposite side}{Adjacent side} = \frac{a}{b} = \frac{4}{3}$

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