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Yuri [45]
3 years ago
9

I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT. Find m2C in the quadrilateral.

Mathematics
1 answer:
saul85 [17]3 years ago
8 0

Answer:

m∠C = 107°

Step-by-step explanation:

there are 4 sides so we first need to find the total interior angle:

  • ( 4 - 2 ) * 180 = 360°

m∠C = 360° - 90° - 90° - 73°

         = 107°

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Please can someone express √5 as a fraction? ​
VashaNatasha [74]
<h2>Answer:</h2>

<em>SInce this continued fraction does not terminate, we can tell that √5 cannot be represented as a terminating fraction - i.e. a rational number. So √5 is an irrational number a little smaller than 214=94 . For better rational approximations you can terminate the continued fraction after more terms.</em>

hope this help!

5 0
3 years ago
How is 1/x + 2 - 4/2x +1 equivalent to - 2x + 7 / (x + 2)(2x + 1)
DanielleElmas [232]

We have,


\frac{1}{x + 2}  -  \frac{4}{2x + 1}  \\

Since the denominator isn't same we cannot directly perform any arithmetic operation on the terms, in order to be able to do that we must make the denominator same,

It's like the way we have,
\frac{2}{3}  +  \frac{4}{9}   \\

You know you cannot just add the terms and write the answer as,
\frac{8}{12}  \\
It completely wrong.

each of the terms have different values when when added doesn't gives 8/12.

Let me prove that to you by converting them into decimal values,

so
\frac{2}{3}  = 0.67 \\  \\ and \\  \\  \frac{4}{9}  = 0.43
Adding these two gives, 1.1

and
The result we had earlier equates to,
\frac{8}{12}  =  \frac{4}{3}  = 1.33 \\

You see the results are not equal.

So there must be something wrong.

And the wrong this here was not making the denominators equal,
To do that you basically multiply 2/3 with a 3/3 which may look stange at first but it does gives you same denominator as 4/9 in the form of 6/9.

Now you can add the numerators up and leave the denominator as it is which will give 10/9 = 1.1

Back to you question to show that the terms sperated by = are equal we must show one is identical to another.


Let's do this using the Right hand side,

\frac{( - 2x + 7)}{(x + 2)(2x + 1)}  \\  \\  =  \frac{(2x + 1) -4 (x + 2)}{(x + 2)(2x + 1)}  \\  \\  =    \frac{(2x + 1)}{(x + 2)(2x + 1)}  -  \frac{4(x + 2)}{(x + 2)(2x + 1)}  \\  \\  \frac{1}{x + 2}  -  \frac{4}{2x + 1}




Now this value is clearly equal to the the one on the left hand side of "=" .


3 0
3 years ago
I need some help please
spin [16.1K]

Answer:

140 will be his weight of Antony's weight

7 0
2 years ago
Read 2 more answers
Is the square root of -1/4 rational.or irrational
nadezda [96]

Answer:

the square root of -1/4 is irrational

8 0
3 years ago
The odds of an event happening are 7/3. What is the probability that the event does NOT happen?​
SVETLANKA909090 [29]

Answer:

So in your example, the odds are 7:3. In English, that means that if we had a horse race and we held 10 races with the same horses, our favored horse would finish first 7 times and lose the remaining three. But treated as a probability? If we look at it that way, we have 10 possible outcomes and the event of interest (the horse winning) happens 70% of the time. Conversely, the probability of the event not happening (the horse losing) is 30%.

Step-by-step explanation:

6 0
3 years ago
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