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nexus9112 [7]
3 years ago
13

I REALLY NEED HELP RIGHT NOW! T^TApplying the 30-60-90 Theorem, Solve this.​

Mathematics
1 answer:
jarptica [38.1K]3 years ago
6 0

Answer:

Step-by-step explanation:

take 30 degree as reference angle

using cos rule

cos 30=adjacent/hypotenuse

\sqrt{3}/2=7\sqrt{3}/y(do cross multiplication)

14\sqrt{3=y\sqrt{3}

14\sqrt3}/\sqrt{3}=y

14=y

for x

using pythagorsa theorem

H^2=P^2+B^2

14^2=X^2+(7\sqrt{3})^2

196=X^2+147

196-147=X^2

49=X^2

\sqrt{49}=X

7=X

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Juliette [100K]

Answer:

<em>the</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>c</em>

Step-by-step explanation:

x/42=5/7

x/42=5/7then crisscross

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Hope it'll help!

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8 0
3 years ago
If you figure out these questions I’ll give you brainliest
Naddika [18.5K]

Answer:

1: it is called a building cause it can still be improve or built on.

2: its an integer in a decimal formation.

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Step-by-step explanation:

7 0
3 years ago
Show that x⁵²-21x+20 is divisible by x− 1.
SashulF [63]

Answer

given equation,

x⁵²-21 x+20

A number to be divisible by the another number means that on dividing the remainder should be zero.

if x⁵²-21 x+20 is divisible by x− 1 means that x-1 should completely divide the equation.

 so,

      x -1 = 0

       x = 1

x⁵²-21 x+20 to be divisible it should be equal to zero when x = 1

putting x = 1

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= 21 -21

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4 0
3 years ago
I need help, please answer A and B.
qwelly [4]

Answer:

a. 81 square inches

b. 108 inches

Step-by-step explanation:

The area of all 5 squares combined is 405 square inches. This is 5 times the area of 1 square. 405/5 = 81. The area of 1 square is 81 square inches.

Since this is a square, the sides are equal. Thankfully the area of 1 square is a perfect square so the length of one side of the square is a full number, which is 9. All of the squares are congruent as shown in the diagram so we simply add every length together (there are 12 sides, each side is 9 inches).

12*9 = 108 and that is the perimeter.

5 0
3 years ago
Read 2 more answers
2y<br><img src="https://tex.z-dn.net/?f=2y%20%3D%2050" id="TexFormula1" title="2y = 50" alt="2y = 50" align="absmiddle" class="l
elena-s [515]
Y = 25
50 divided by 2 = 25
4 0
3 years ago
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