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HACTEHA [7]
3 years ago
11

What is the missing part​

Mathematics
2 answers:
mihalych1998 [28]3 years ago
5 0

Answer: the missing part is 45

suppose:  the missing part is x

we use Thales theorem:

\frac{x}{18}=\frac{20}{8}\\\\=> x = \frac{20.18}{8}=45

Step-by-step explanation:

Roman55 [17]3 years ago
4 0

use thales theorem to solve this question

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How do I find the measures of the indicated angle that makes lines U and V parallel
Oxana [17]

Answer:

if u ll v then this angel is the twin of the one below and is 180-72

Step-by-step explanation:

7 0
3 years ago
Expres each of the folowing as a single matrix.
Elden [556K]

Answer:

\left[\begin{array}{cc}6&-3\\10&-1\end{array}\right]+\left[\begin{array}{cc}-2&8\\3&-12\end{array}\right]=\left[\begin{array}{cc}4&5\\13&-13\end{array}\right]

Step-by-step explanation:

If you have two matrices:

A=\left[\begin{array}{cc}a&b\\c&d\end{array}\right]\\and\\B=\left[\begin{array}{cc}e&f\\g&h\end{array}\right]\\\\\\A+B=\left[\begin{array}{cc}a+e&b+f\\c+g&d+h\end{array}\right]

We have:

A=\left[\begin{array}{cc}6&-3\\10&-1\end{array}\right]\\and\\B=\left[\begin{array}{cc}-2&8\\3&-12\end{array}\right]

And we need to express as a single matrix:

A+B=\left[\begin{array}{cc}6&-3\\10&-1\end{array}\right]+\left[\begin{array}{cc}-2&8\\3&-12\end{array}\right]\\\\\\A+B=\left[\begin{array}{cc}6+(-2)&-3+8\\10+3&-1+(-12)\end{array}\right]\\\\\\A+B=\left[\begin{array}{cc}6-2&5\\13&-1-12\end{array}\right]\\\\\\A+B=\left[\begin{array}{cc}4&5\\13&-13\end{array}\right]

The answer is:

\left[\begin{array}{cc}6&-3\\10&-1\end{array}\right]+\left[\begin{array}{cc}-2&8\\3&-12\end{array}\right]=\left[\begin{array}{cc}4&5\\13&-13\end{array}\right]

It is expressed as a single matrix.

8 0
3 years ago
4.55 rounded to the nearest hundredth
mylen [45]

Answer:

its still 4.55

Step-by-step explanation:

I dont understand

7 0
3 years ago
Read 2 more answers
Carl Sagan himself wrote that document.<br><br> What kind of pronoun is himself?
Lynna [10]
<span><span>Possessiv emine, yours, his, hers, ours, theirs</span><span>Reflexive myself, yourself, himself, herself, itself, oneself, ourselves, yourselves, themselves </span><span>Reciprocal each other, one another</span><span>Relative <span>that, which, who, whose, whom, where, when</span></span></span>
5 0
3 years ago
Read 2 more answers
F(x)= StartRoot negative x EndRoot?
Leya [2.2K]

Answer:

f(x) = √-x

Step-by-step explanation:

f(x) = √-x

Step 1: Obtain the value of x (start)

Step 2: The square root  of  -x

Step 3: Write down the value of f(x) (End)

7 0
3 years ago
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