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Juliette [100K]
4 years ago
11

PLZ HELP ASAP INSCRIBED ANGLES

Mathematics
1 answer:
levacccp [35]4 years ago
6 0
SIE = 180 - 61 = 119
ISE = 180 - ( 119 + 27 ) = 34
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Step 2 how did the 8 get there?
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Two adjacent, supplementary angles form a<br><br> line?
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Factorise 9w² - 100<br><br><br>​
ohaa [14]

Answer:

9\, w^{2} - 100 = (3\, w - 10) \, (3\, w + 10).

Step-by-step explanation:

Fact:

\begin{aligned} & (a - b)\, (a + b)\\ =\; & a^{2} + a\, b - a\, b - b^{2} \\ =\; & a^{2} - b^{2} \end{aligned}.

In other words, (a^{2} - b^{2}), the difference of two squares in the form a^{2} and b^{2}, could be factorized into (a - b)\, (a + b).

In this question, the expression (9\, w^{2} - 100) is the difference between two terms: 9\, w^{2} and 100.

  • 9\, w^{2} is the square of 3\, w. That is: (3\, w)^{2} = 9\, w^{2}.
  • On the other hand, 10^{2} = 100.

Hence:

9\, w^{2} - 100 = (3\, w)^{2} - (10)^{2}.

Apply the fact that a^{2} - b^{2} = (a - b) \, (a + b) to factorize this expression. (In this case, a = 3\, w whereas b = 10.)

\begin{aligned}& 9\, w^{2} - 100 \\ =\; & (3\, w)^{2} - (10)^{2} \\ = \; & (3\, w - 10)\, (3\, w + 10)\end{aligned}.

8 0
3 years ago
6.is it Open or close
Free_Kalibri [48]

Answer:

A

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
−13 − (−27) <br> pls help-
sergij07 [2.7K]

Answer:14

Step-by-step explanation: minus *minus = + so its +27

and then you just do the maths 27-13=14

3 0
3 years ago
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