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Harrizon [31]
3 years ago
11

Find the length of a leg of a right triangle (in inches) if the other leg measures 8 in. And the hypotenuse measures 19 in. Roun

d to the nearest thousandth.
Mathematics
1 answer:
vladimir1956 [14]3 years ago
4 0

Answer:

17.2

Step-by-step explanation:

8 to the power of 2 is 64

19 to the power of 2 is 361

361 - 64 is 297

Square root of 297 is 17.2

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-18x-17=-53
nydimaria [60]

-18x-17=-53 /add 17 to both sides

-18x-17+17=-53+17

-18x=-36

x=(-36)/(-18)

x=2

5 0
3 years ago
??????????????????????
nalin [4]

Answer:

??????????????????????????????????????????????????

Step-by-step explanation:

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6 0
3 years ago
You're standing on the ground 7777 meters away from the bottom of a tall tower. The tower itself is 346346 meters tall. What is
lys-0071 [83]

Answer:

88.7°

Step-by-step explanation:

First, visualize. Assuming that the tower is at a perfectly 90° angle to the ground, you have a right triangle. We will call this triangle ΔABC where A is where you are, B is the top of the tower, and C is the base of the tower. Now we know the following:

∠A = ?

∠B = ?

∠C =  90

a = 346346

b = 7777

c = ?

Note: Triangles are labeled with three pairs of letters: a, b and c and A, B and C. The lower case letters, a, b and c represent the sides, and the upper case letters are the angles that are directly opposite of those sides. (see attached reference)

c is easy, c is the hypotenuse, so you can use the following equation to find the hypotenuse:

a² + b² = c²

Rearranged:

c = ± \sqrt{a^{2} +b^{2} }

Substitute a and b:

c = ±\sqrt{346346^{2} +7777^{2} }

Comes out to ~346433.3 meters.

Now if we use the Law of Sines:

\frac{a}{sinA} = \frac{b}{sinB} = \frac{c}{sinC}

We can use c and a, since we're trying to find what angle A is, so the ratio is set up as:

\frac{346346}{sinA} = \frac{346433.3}{sinC}

Well we know that C = 90, and so sin(90) in degrees (as opposed to radians) is 1. So then the set of equations is now:

\frac{346346}{sinA} = \frac{346433.3}{1}

Cross Multiply to get rid of the fractions:

346346 = 346433.3 * sin(A)

Divide:

\frac{346346}{346433.3} = sin(A)

Using a calculator, if you take the arcsin of that fraction, you will get what angle A is supposed to be:

arcsin( \frac{346346}{346433.3} ) = ∠A = 88.7°

5 0
2 years ago
6 cm<br> 4 cm<br> 7 cm<br> It’s a rectangular pyramid.
Vikki [24]

<em>HOPE</em><em> </em><em>THIS</em><em> </em><em>WILL</em><em> </em><em>HELP</em><em> </em><em>U</em><em>.</em><em>.</em><em>.</em>

7 0
2 years ago
Read 2 more answers
What is the total number of 0.3 pound meatballs Thomas can make with 8.1 pounds of meat?
SCORPION-xisa [38]
27



Divide

8.1 / 0.3

27


Hope this helps :)
7 0
3 years ago
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