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maks197457 [2]
3 years ago
8

Please helppppp meeeeee it would mean the worlddddd

Mathematics
1 answer:
anastassius [24]3 years ago
3 0

Answer:

x = 7.5

Step-by-step explanation:

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ASAP Plz what is the value of x? Plz no joking around this is from quiz 4.09: Special Right Triangles 2
Sunny_sXe [5.5K]
Ooh this is a good one!
Firstly, let's find RT so that we can solve the top triangle.
We could actually use 3 methods to find this side: 1) trig to find RT
2) trig to find ST, then Pythagorean Theorem to determine RT
3) use the special 30-60-90 right triangle rule ... hmm, I'm going with the last because it's easiest ;)

For 30-60-90 triangles, the sides are always as follows: smallest side (opposite the 30) is s, the middle side is sSR3, and the hypotenuse is 2×s
Thus, since we have the side opposite 60, it is = sSR3, so:
s \sqrt{3}  = 2 \sqrt{3}  \\ s \sqrt{3} \div  \sqrt{3}   = 2 \sqrt{3} \div  \sqrt{3}  \\ s = 2
So now, the hypotenuse (RT) = 2s = 2(2) = 4

Secondly, we are looking at the other type of special right triangle, the 45-45-90:
The side opposite the 45s are s (remember side lengths are equal whose opposite angles are equal); and the hypotenuse is always
s \sqrt{2}
we only need QR, which is s, which is also = RT
So the answer is:
QR = x = 4

x = 4 IS THE FINAL ANSWER!!!


[ i hope by my explanations you understand how better to do special right triangles in the future] :-D
8 0
3 years ago
Read 2 more answers
Help please!!!!! ASAPPPP
r-ruslan [8.4K]

Answer:

the numerator is 31 and the bottom is 8

Step-by-step explanation:

5 0
2 years ago
Please answer theses questions NEED THEM FAST please
scoundrel [369]
1)

C ≈ 3.14 • 9
C ≈ 28.26
The circumference is 28.3 cm to the nearest tenth of a centimeter

2)

C ≈ 3.14 (2 • 13)
C ≈ 3.14 • 26
C ≈ 81.64
The circumference is 81.6 in to the nearest tenth of a inch

3)

C = 3.14 (13)
C = 40.82
C = 40.8

4)

C = 3.14 (2 • 5)
C = 3.14 (10)
C = 31.4

5)

C = 3.14 (2 • 1.5)
C = 3.14(3)
C = 9.42
C = 9.4
6 0
2 years ago
Please help i really need this
lorasvet [3.4K]

Answer:

ok put me brainliest  please

its 215$

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Please help: (picture)
Slav-nsk [51]

We need to solve the speed formula for d. To do so, let's start by moving the number of the left hand side:


\frac{S}{356} = \sqrt{d}


Square both sides to get rid of the square root:


\frac{S^2}{126736} = d


Now plug the known value of the speed to find the distance:


d = \frac{140^2}{126736} = \frac{19600}{126736} \approx 0.15465


So the closest answer is the last one: d=0.155km

3 0
3 years ago
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