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DiKsa [7]
3 years ago
13

This is a quiz on special right triangles. please help me i cannot fail this. i will mark brainliest

Mathematics
1 answer:
kobusy [5.1K]3 years ago
4 0

Answer:

x=4

Step-by-step explanation:

Consider ΔKLJ:

sinθ=opposite/hypotenuse

sin30=LJ/8√2

LJ=0.5*8√2=4√2

Consider ΔMLJ:

sinθ=opp/hyp

sin45=x/4√2

1/√2=x/4√2

4√2/√2=x

x=4

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Explain the difference between using the tangent ratio to solve for a missing angle in a right triangle versus using the cotange
Lena [83]

Answer:

While determining the angle \theta with the tangent ratio or cotangent ratio uses the same sides lengths but the ratios are inverse of each other.

Step-by-step explanation:

See the diagram attached.

Let us assume a right triangle Δ ABC with ∠ B = 90°. Now, assume that the angle ∠ CAB = \theta and the sides AB, BC, CA are 3, 4, 5 units respectively.

The tangent ratio of an angle \theta is given by  

\tan \theta = \frac{BC}{AB} = \frac{4}{3}  

Again, the cotangent ratio of angle \theta is given by  

\cot \theta = \frac{AB}{BC} = \frac{3}{4}  

Therefore, in both the cases of tangent ratio and cotangent ratio are inverse of each other and while determining the angle \theta with the tangent ratio or cotangent ratio uses the same sides lengths but the ratios are inverse of each other. (Answer)

4 0
3 years ago
If the price of a textbook is $40 before tax is added on, and tax is 10%, what will the final price of the textbook be?
Digiron [165]

Answer:

soln,

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now,

tax amount = 10% of $40

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again,

final price = cost of textbook+tax

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Step-by-step explanation:

so the total price of a Textbook is $40 which is 100% and the tax is 10% so you need to find tax from the price of the textbook which is 10% of the price of the textbook then add the price of the textbook with the tax amount which is the final cost .

4 0
3 years ago
Help me I’m struggling
Ad libitum [116K]

Answer:

Hey there!

(8^2)^-4=8^2(-4), or 8^-8

8^-8 can be expressed as the third option.

Hope this helps :)

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bagirrra123 [75]

Answer:

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Step-by-step explanation:

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2 years ago
Do you think making a table is the best way to find the total area of the rooms
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4 years ago
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