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Degger [83]
3 years ago
14

I need help please anyone can help me !!!!

Mathematics
1 answer:
marta [7]3 years ago
8 0

Answer:

5.15

Step-by-step explanation:

I hope this helps have a great day

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20 POINTS !!!!!! Determine whether side-side-angle (SSA) is a valid means for establishing triangle congruence. In this case, yo
Dahasolnce [82]

It's not valid because there are too many unknown quantities, meaning there is not exactly one triangle that could exist for any given SSA combination.

For a visual example, see the attached image below.

It's fairly obvious that b\neq b'. One is acute, the other is obtuse. In the triangle on the right, the dashed side has the same length A as in the triangle on the left. This dashed side and the actual side A form an isosceles triangle with congruent base angles b'. The angles b and b' are supplementary (they add to 180 degrees), or (b')^\circ=(180-b)^\circ.

Now by the law of sines, in the first triangle,

\dfrac{\sin a^\circ}A=\dfrac{\sin b^\circ}B

and that in the second triangle,

\dfrac{\sin a^\circ}A=\dfrac{\sin(b')^\circ}B=\dfrac{\sin(180-b)^\circ}B

but we also know that \sin(180-x)^\circ=\sin x^\circ. Hence \sin b'=\sin b.

Two different angles in this arrangement allow for two different triangles to be constructed, so having a SSA correspondence between two triangles is not enough evidence for their congruence.

8 0
3 years ago
3y-5z=-23<br> 4x+2y+3z=7<br> -2x-y-z=-3
icang [17]
What is the question?
3 0
3 years ago
F(x)=|-3x|=-30 solve this equation
Elan Coil [88]

Answer:

no solution

Step-by-step explanation:

|-3x|=-30

Absolute value means take the non negative

An absolute value cannot be negative

There is no solution.

3 0
3 years ago
5(9 + d) - 6<br><br><br><br><br><br> when d = 3
otez555 [7]
49 is the answer cjfuvvryssokskdoxofo
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QUESTION 1 of 10: Generally, parties of 8 or more require many restaurants to include gratuity of 18% on the check before presen
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