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Rudiy27
3 years ago
9

2. Triangle ABC is similar to triangle PQR. Which statement is not always true?

Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
6 0
The answer would be c i think
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BAC ~ DEC what is the value of x?
Anna007 [38]

Answer: x = 37.8

Step-by-step explanation: We start with triangle ABC with two sides given as 15 and 18. We shall make angle C the reference angle and thereby calculate the third side, line BC.

Since we have the opposite side as 15, and the adjacent side (which lies between the reference angle and the right angle) as 18, we can use the tangent of the angle C

Tan C = Opp/Adj

Tan C = 15/18

Tan C = 0.8333

From our table of values/use of the calculator

Tan C = 39.8

Angle C in triangle ACB = Angle C in triangle ECD (Opposite angles are equal).

That takes us to triangle ECD, since the reference angle is known (39.8) and the opposite side is also given (31.5), we can now calculate the adjacent which is side x.

Tan C = Opp/Adj

Tan 39.8 = 31.5/x

when you cross multiply, x moves to the left hand side, while Tan 39.8 moves to the right hand side

x = 31.5/Tan 39.8

x = 31.5/0.8333

<u>x = 37.8</u>

5 0
3 years ago
Can someone help me????
SpyIntel [72]
Lemme think bout it....no
5 0
3 years ago
Evaluate. 2−2⋅(12⋅3)−53
klemol [59]
<span><span>
2−<span><span>2<span>(12)</span></span><span>(3)</span></span></span>−53</span><span> 
  =<span><span>2−<span><span>(2)</span><span>(36)</span></span></span>−53</span></span><span>
  =<span><span>2−72</span>−53</span></span><span>
  =<span><span>−70</span>−53</span></span><span>

   Answer :  <span>−<span>123</span></span></span>
3 0
3 years ago
Read 2 more answers
58.132 nearest hundredth
Schach [20]

Answer:

58.13

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 108.7-cm and a standard dev
Luden [163]

Let x be the lengths of the steel rods and X ~ N (108.7, 0.6)

To get the probability of less than 109.1 cm, the solution is computed by:


z (109.1) = (X-mean)/standard dev

= 109.1 – 108/ 0.6

= 1.1/0.6

=1.83333, look this up in the z table.


P(x < 109.1) = P(z < 1.8333) = 0.97 or 97%

3 0
3 years ago
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