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sertanlavr [38]
3 years ago
11

Solve for x round to the nearest tenth of degree if necessary

Mathematics
1 answer:
ehidna [41]3 years ago
8 0

Answer:

x = 1 degree

Step-by-step explanation:

Using the Pythagorean theorem, a^{2} + b^{2} + c^{2} we can find the unknown side then use SOHCAHTOA to find the unknown angle

First step:

a^{2} + b^{2} = c^{2} \\45^{2} + 92^{2} = c^{2} \\2025 + 8464 = c^{2} \\10489 = c^{2} \\

Take the square root of both sides

\sqrt{10489} = \sqrt{c^{2} } \\102.4 = c

Now to find the angle use SOHCAHTOA

Cosine = \frac{Adjacent}{Hypotenuse} (The side we found is adjacent)(Hypotenuse is the longest side)

            = \frac{102.4}{92}

             = 0.999

Approximately 1 degree.

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Find the missing sides.
love history [14]

Answer:

Part 3)

x=6\ units

y=3\ units

Part 4) x=18\sqrt{2}\ units

Step-by-step explanation:

Part 3)

<em>step 1</em>

Find the value of x

In the right triangle of the figure we know that

The cosine of angle of 30 degrees is equal to the adjacent side to angle of 30 degrees divide by the hypotenuse

so

cos(30\°)=\frac{3\sqrt{3}}{x}

and remember that

cos(30\°)=\frac{\sqrt{3}}{2}

substitute

\frac{\sqrt{3}}{2}=\frac{3\sqrt{3}}{x}

Simplify

x=(2*3)=6\ units

<em>step 2</em>

Find the value of y

In the right triangle of the figure we know that

The sine of angle of 30 degrees is equal to the opposite side to angle of 30 degrees divide by the hypotenuse

so

sin(30\°)=\frac{y}{x}

and remember that

sin(30\°)=\frac{1}{2}

substitute

\frac{1}{2}=\frac{y}{6}

y=6/2=3\ units

Part 4) Find the value of x

Applying the Pythagoras Theorem

x^{2} =18^{2} +18^{2} \\ \\x^{2} = 324+324\\ \\x^{2}=648\\ \\x=\sqrt{648}\ units

Simplify

x=18\sqrt{2}\ units

6 0
3 years ago
Simplify the expression (-8/15)+(1/15)
Mice21 [21]
If it is fractions then the answer is -7/15. Think of as 8/15 - 1/15 except the answer is a negative number

4 0
4 years ago
19. What are the extremes of the following proportion?
Ad libitum [116K]
There is no proportion showing
3 0
3 years ago
the sale tax in New York is 8.25%, about how much will a 65.95 pair of shoes cost, including sales tax?
Radda [10]

Answer:

$71.39

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

Well, 8.25%=0.0825

0.0825x$65.95=about $5.44

$65.95+$5.44=$71.39

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

7 0
3 years ago
One of the tallest living men has a height of 236 cm. One of the tallest living women is 224 cm tall. Heights of men have a mean
Roman55 [17]

Answer:

A. The woman is relatively taller because the z score for her height is greater than the z score for the man​'s height.

Step-by-step explanation:

Whoever has the highest z-score, is taller relative to the population of the same gender.

The z-score of a value X in a set with mean \mu and standard deviation /sigma is given by:

Z = \frac{X - \mu}{\sigma}

Solution:

Heights of men have a mean of 170 cm and a standard deviation of 6 cm. One of the tallest living men has a height of 236 cm. So the z-score of his height is:

Z = \frac{X - \mu}{\sigma} = \frac{236-170}{6} = 11

Heights of women have a mean of 161 cm and a standard deviation of 5 cm.

One of the tallest living women is 224 cm tall. The z-score of the women's height is

Z = \frac{X - \mu}{\sigma} = \frac{224-161}{5} = 12.6

The women has a higher z-score, so she is relatively taller.

The correct answer is A

3 0
4 years ago
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