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3 years ago

Please help. Find sinA

Mathematics

2 answers:

Vlad1618 [11]3 years ago

5 0

Answer: 32/40

Step-by-step explanation:

Sin is Opp/Hyp

Sin A is 32/40

kotykmax [81]3 years ago

3 0

The answer to that will be 32/40

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The length of side of largest square is 15 inches

Step-by-step explanation:

The given suares are when joined in the way as shown in picture their sides form a right agnled triangle.

Area of square 1 and perimeter of square 2 will be used to calculate the sides of the triangle.

So,

<u>Area of square 1: 81 square inches</u>

$s^2 = A\\s^2 = 81\\\sqrt{s^2} = \sqrt{81}\\s = 9$

<u>Perimeter of square 2: 48 inches</u>

$4*side = P\\4* side = 48\\side = \frac{48}{4}\\side = 12\ inches$

We can see that a right angled triangle is formed.

Here

Base = 12 inches

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And the side of largest square will be hypotenuse.

Pythagoras theorem can be used to find the length.

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3 years ago

in a sale normal prices are reduced by 15%. the sale price of a CD player is $102. work out the normal price of the CD player.

morpeh [17]

.85x=102
x=120
The answer is $120.

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