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Alecsey [184]
3 years ago
7

Someone please help! find x round to the nearest tenth! trigonometry!​

Mathematics
1 answer:
TEA [102]3 years ago
5 0

Answer:

<h2>x = 745.5 ft</h2>

Step-by-step explanation:

Look at the picture.

Use sine:

sine=\dfrac{opposite}{hypotenuse}

We have a measure of the angle and length of the opposite:

\alpha=28^o,\ opposite=350\ ft

\sin28^o\approx0.4695

Substitute:

\dfrac{350}{x}=0.4695

\dfrac{350}{x}=\dfrac{4695}{10000}            <em>cross multiply</em>

4695x=3500000           <em>divide both sides by 4695</em>

x=\dfrac{3500000}{4695}\to x\approx745.5

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Distance after 1 minute = speed * time = 275 * 60 = 16,500 feet
Let the altitude of the plane be y, then
sin 18 = y/16500
y = 16500 sin 18 = 5,098.78 feet
8 0
3 years ago
Please help ASAP. Find the volume of the trapezoid as a simplified expression. If correct I will give brainliest.
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Answer:

2x^2*(2x^3+8x^2+2x)      or

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Step-by-step explanation:

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6 0
3 years ago
A girl has 3 different swimsuits, 4 different shorts and 3 different pairs of flip-flops. In how many different ways can this gi
In-s [12.5K]

Answer:

Option D is the correct answer.

Explanation:

 A girl has 3 different swimsuits, 4 different shorts and 3 different pairs of flip-flops.

 Different ways can this girl wear a swimsuit, a pair of short and a pair of flip-flops = 3P₁ x 4P₁ x 3P₁

               = 3 x 4 x 3

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Option D is the correct answer.

4 0
3 years ago
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iren2701 [21]

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Step-by-step explanation:

8 0
3 years ago
The mass, m, of an object varies directly as the cube of its length, I.
steposvetlana [31]

Answer:

m = 686.

Step-by-step explanation:

Direct variation :

m= kl^3 where k is a constant.

m = 250 when l = 5, so

250 = k *(5)^3

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So the equation of variation is m = 2l^3.

When l = 7:

m = 2 * (7)*3

= 2 * 343

= 686.

6 0
3 years ago
Read 2 more answers
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