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sashaice [31]
3 years ago
9

Maths question trigonometry help pleassssee

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
7 0

Answer:

x=4.5

Step-by-step explanation:

Using sohcahtoa we know tangent is equal to (length of side opposite to the angle ) / (lenth of side adjacent to the angle)

therefore: tan (theta) = (x-3) / (x) = 1 / 3

now cross multiply

3(x-3) = x

now solve for x

3x - 9 = x

-9= -2x

x= 4.5

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Answer:

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3 years ago
Alanna is painting a border on a wall. The border consists of kite-shaped figures as shown. mc022-1.jpg Each kite measures 6 inc
Sedaia [141]

the question does not present the picture, but this does not interfere with the resolution


step 1

Find the area of a kite

we know that

area of a kite=(1/2)*[d1*d2]

where d1 and d2 are the diagonals

so 

area of a kite=(1/2)*[6*12]-----> 36 in²

<span>The wall is 12 feet across-----> convert to in-----> 12*12----> 144 in

step 2
find the number of kite to paint
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step 3
find the n</span><span>umber of square inches of the wall to be covered with comets
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the answer is 864 in²
<span>Note For this calculation, as there is no drawing we have assumed that the diagonal of the 6-inch kite is horizontal
</span>
case b) 
<span>If the diagonal of the 12-inch kite was horizontal, then the calculation would be
</span>step 2
find the number of kite to paint
divide across of the wall to across of a kite
144/12-----> 12

step 3
find the number of square inches of the wall to be covered with comets
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4 years ago
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finlep [7]

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