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seropon [69]
3 years ago
13

Please help I’m not good at triangle angles

Mathematics
1 answer:
wlad13 [49]3 years ago
6 0

Answer:

Step-by-step explanation:

Two of the angles are just numbers and you add them.

The third is a term and you add it along with the other two.

The total is always 180 for a triangle.

80 + 58 + 5x - 3 = 180

138 + 5x - 3 = 180              Combine on the left

135 + 5x = 180                   Subtract 135 from both sides

5x = 180 - 135                    Combine the right

5x = 45                               Divide by 5

x = 9

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Mashcka [7]

D. is the correct anser

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never [62]

Answer:

The answer is 3,666

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Multiply and simplify: –3x2y2 • x4<br> –3x5y2<br><br> 9x5y2<br><br> –3x6y2<br><br> –3x5y6
Contact [7]

Answer:

Multiplying and simplifying the term -3x^2y^2 \:.\: x^4 we get \mathbf{-3x^6y^2}

Option C is correct option.

Step-by-step explanation:

We need to multiply and simplify: -3x^2y^2 \:.\: x^4

Simplifying the term:

-3x^2y^2 \:.\: x^4

While multiplying, the variables with same bases are multiplied: a^m\:.\:a^n=a^{m+n}

In the given question only x^2 and x^4 are variables with same bases, So we get:

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So, multiplying and simplifying the term -3x^2y^2 \:.\: x^4 we get \mathbf{-3x^6y^2}

Option C is correct option.

4 0
3 years ago
which postulate or theorem, if any,could be used to prove the triangles congruent? if not enough information is given, write not
Rus_ich [418]
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SAS (side, angle, side)
ASA (angle, side, angle)
AAS (angle, angle, side) 
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RHS/HL (Right Angle-Hypotenuse-Side/Hypotenuse-legs)

In these cases:
A. <B = <E
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AAS (angle, angle, side) could be used.

B. AB=ED
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SSS (all sides equal) could be used.

C.<BEA=<CED (right opposite angles)

As there is only one pair of equal angles we can find,there is not enough information.

D.<B = <E
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ASA (angle, side, angle) could be used.

Hope it helps!
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ZanzabumX [31]

Answer:

The answer is 5 1/3 or five one thirds

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