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wariber [46]
2 years ago
14

Please answer correctly !!!!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Furkat [3]2 years ago
4 0

Answer:

92 degrees

Step-by-step explanation:

<HEF and <AED are vertical angles.

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Solve completely (all missing sides and all missing angles) using trig ratios or laws. Round to the nearest tenth.
hodyreva [135]

Answer:

Step-by-step explanation:

3. Use Cosine law to find the  length of the unknown side (PR)

q² = p² +  r² - 2prCos Q

q is the opposite side of ∠Q;  

p is the opposite side of ∠P; p = 33

r is the opposite sides of ∠R ; r = 67

q² = 33² + 67² -  2* 33*67 Cos 19°

    = 1089 + 4489 - 4422 * 0.95

     = 1089 + 4489 - 4200.9

    = 1377.1

q = √1377.1

q = 37.1

PR = 37.1

To find the angle use law of sin

\sf \dfrac{q}{Sin \ Q} =\dfrac{p}{Sin \ P}\\\\\\\dfrac{37.1}{Sin \ 19}=\dfrac{33}{Sin \ P} \\\\\\\dfrac{37.1}{0.33}=\dfrac{33}{Sin \ P}\\\\\\37.1* Sin \ P = 33 *0.33\\\\Sin \ P =\dfrac{33*0.33}{37.1}

Sin P = 0.3

P = Sin^{-1} 0.3\\

P = 17.5°

∠R = 180 - (19 + 17.5)

    = 143.5°

6 0
2 years ago
Plzzzz help!! Me find x
vivado [14]

Answer:

x=-4

Step-by-step explanation:

These two angles have to equal 180 because they are opposite of each other. Therefore, the equation will be 129+x+x+59=180. You add all common terms. 2x+188=180. You want to isolate x so you have to subtract both sides by 188. Therefore, the equation will be 2x=-8. Divide both sides by 2 to isolate x. x=-8/2. This is equal to x=-4.

If this has helped please mark as brainliest

3 0
3 years ago
Express it in slope-intercept form​
raketka [301]

y =  \frac{1}{2} x - 3

8 0
3 years ago
Read 2 more answers
at the local aquarium, there are 10 dolphins 8 penguins, and 4 whales what is the ratio of pengiuns to whales
Helen [10]
10:4 because there are 10 dolphins and 4 whales
4 0
3 years ago
How can I factor -2x^2+2x+4=0 ?
Shtirlitz [24]
Because all are a multiple of 2, you can factor out 2, 2(-x^2+x+2)=0
4 0
3 years ago
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