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Natali [406]
3 years ago
10

Please help me. Its geometry in mathematics.

Mathematics
1 answer:
I am Lyosha [343]3 years ago
3 0

Answer:

(b-10) +(b+10)=180

2b=180

b=90

c=b-10=80

d=b+10=100

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Find x(3x+72) triangle
Alinara [238K]

Answer: x = -4 ; Angle = 60°

Concept:

The given figure is a triangle with 3 arc signs on each angle. This <u>arc sign </u>stands for the corresponding angles are congruent, which in this question, it shows that all three angles are congruent. Sometimes, if the figure has multiple angles and there are different groupings of congruent angles, then we use different numbers of arcs or symbols.

Solve:

<u>Given information</u>

An angle = 3x + 72

Total measure of angles = 180 (triangle angle sum theorem)

Total number of congruent angles = 3

<u>Given expression</u>

Total measure = Total number of congruent angles × An angle measure

<u>Substitute values into the expression</u>

180 = 3 (3x + 72)

<u>Divide 3 on both sides</u>

180 / 3 = 3 (3x + 72) / 3

60 = 3x + 72

<u>Subtract 72 on both sides</u>

60 - 72 = 3x + 72 - 72

-12 = 3x

<u>Divide 3 on both sides</u>

-12 / 3 = 3x / 3

\boxed{x=-4}

<u />

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3x + 72 = 3 (-4) + 72 = \boxed{60}

Hope this helps!! :)

Please let me know if you have any questions

6 0
2 years ago
Read 2 more answers
For the polynomial below, -2 is a zero.
Law Incorporation [45]

Step-by-step explanation:

=(-2)2+8(-2)+18(-2)+12

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OR

=4-16-36+12

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3 0
3 years ago
Two trains, train a and train , weigh a total of 466 tons. Train A is heavier than train b. The difference of there weights is 3
AlexFokin [52]

Answer: A = 396 tons

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Step-by-step explanation:

From the question,

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Subtract equation ii from I

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5 0
3 years ago
Which operation between two polynomials will not always result in a polynomial?
Assoli18 [71]
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Now it might look like one of those involves division but it can be thought of as multiplication by (2/5). When we do this the exponents must be positive.

Polynomials are expressions made up of terms held together by addition and subtraction. Again, the exponents must be positive. Since polynomials are made up of the sum or difference of terms, adding or subtracting polynomials just leads to more polynomials. Here are some examples of Polynomials:

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Now let’s consider what happens if we multiply polynomials. As an example we use: (x+5)(2x-y)=2 x^{2} +10x-xy-5y

What you might notice is that multiplication will lead us to multiply terms (but multiplying terms gives us more term,as) and also to add or subtract terms but that just gives more polynomials. Therefore multiplication leads to more polynomials.

Finally, we consider division. Here a simple example will do the trick: 2 is a term and x is a term. Let us divide 2 by x. We get: \frac{\2}{x}=2 x^{-1}  which is not a polynomial because we have a negative exponent. 

Thus, the answer to your question is division. Division of polynomials will not always result in a polynomial.

_______END OF ANSWER___________
 is. 
5 0
3 years ago
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zavuch27 [327]

Answer:

Celsius

Step-by-step explanation:

Temperature we use celcius, grams for mass, meter for length, liters & cubic centimetres are for volume

4 0
3 years ago
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