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Leona [35]
3 years ago
14

Please help!!! Its an emergency

Mathematics
2 answers:
Sliva [168]3 years ago
7 0

Answer:

x=10

Step-by-step explanation:

The middle triangle has d as the hypotenuse and is an isosceles right triangle. The sides of such a triangle are in the ratio of y, y, and \sqrt{2}y.

For this triangle

\sqrt{2}y=5\sqrt{2}

so y=5.

Tthe triangle on the right is a 30, 60, 90 triangle with sides in the ratio of

y, \sqrt{3}y, and 2y.  So

2y=x=10    

Zigmanuir [339]3 years ago
5 0

Answer: A

Step-by-step explanation:

The line 'd' separates the square into two triangles. Since the side lengths are equal, the angle is 45°. We need the line separating the two 90° angles, that I am going to define as 'z'. We can use the sine function.

\sin(45)=\frac{z}{5\sqrt{2} }

z = 5

To solve for x, we can use sine again but for the 30 degree angle.

\sin(30)=\frac{5}{x} \\x=10

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It’s worth 10 points if you answer!
Maksim231197 [3]

Answer:

m∠x = 10°

Step-by-step explanation:

Since we are dealing with a <u>right triangle</u> and its two sides and one angle, we can use <u>trigonometry ratios</u>. Remember them all with the acronym SohCahToa.

"o" is for opposite side, "a" is for adjacent side, "h" is for hypotenuse side.

The ratios are:

sinθ = opposite/hypotenuse

cosθ = adjacent/hypotenuse

tanθ = opposite/adjacent

θ means the "angle of reference", or the angle you know or want to find. This determines which side is adjacent (touching) or opposite (not touching). The hypotenuse (longest side) does not change.

In this triangle, θ = x. The sides we know are hypotenuse and opposite. Therefore, we will use the sinθ ratio.

sinθ = opposite/hypotenuse

sinx = CB/AB      Substitute the labels in the diagram

sinx = 4/23      Substitute known values (side lengths)

x = sin⁻¹(4/23)      Isolate 'x'. Use calculator to solve.

x = 10.015....°      Exact answer

x ≈ 10°      Round to the nearest degree

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8 0
3 years ago
An auto weighing 2,500 pounds is on a street inclined at 10 with the horizontal. Find the force necessary to prevent the car fro
Misha Larkins [42]

Answer:

1931.7N

Step-by-step explanation:

We are told in the question that :

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It s inclined at n horizontal Ange of 10°

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Since the unit for Force = Newton or kgm/s²

Step 1

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2500 pounds =

2500 pounds × 0.453592kg

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Step 2

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Force = Mass × Acceleration due to gravity × sin θ

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Answer:

option A

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Step-by-step explanation:

Inverse relationship between two input and output means that they both moves in opposite directions, if one increases than other decreases.

Equation to describe relationship of inverse variation between input and output will be as following

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<h3>  output  = k / input </h3>

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Answer:

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Step-by-step explanation:

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