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ipn [44]
3 years ago
15

Does the following system have a unique solution? Why?

Mathematics
2 answers:
IceJOKER [234]3 years ago
5 0

Answer:

yes

Step-by-step explanation:

because the determinant of the coeficient matrix is 4

<em>PLEASE</em><em> </em><em>MARK</em><em> </em><em>ME</em><em> </em><em>AS</em><em> </em><em>BRAINLIEST</em>

harina [27]3 years ago
3 0
Give them brainliest please, the other person deserves it
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<img src="https://tex.z-dn.net/?f=%20Simplify%3A%20%5C%3A%2018%20%5Cdiv%2016%20%2B%20%5B8%20%5C%7B16%20%5Cdiv%20%2810%20-%20%5Co
tester [92]
<h3><u>Simplify :</u></h3>

{:\implies{\small{\sf{18 \div 16 + \bigg[8 \bigg\{16 \div \bigg(10 - \overline{8 - 2 } \bigg)\bigg\} \bigg]}}}}

<u>Simplifying vinculum bar </u>

{:\implies{\small{\sf{18 \div 16 + \bigg[8 \bigg\{16 \div \bigg(10 - \overline{8 - 2 } \bigg)\bigg\} \bigg]}}}}

{:\implies{\small{\sf{18 \div 16 + \bigg[8 \bigg\{16 \div \bigg(10 - 6\bigg)\bigg\} \bigg]}}}}

<u>Simplifying parentheses brackets</u>

{:\implies{\small{\sf{18 \div 16 + \bigg[8 \bigg\{16 \div \bigg(10 - 6\bigg)\bigg\} \bigg]}}}}

{:\implies{\small{\sf{18 \div 16 + \bigg[8 \bigg\{16 \div 4\bigg\} \bigg]}}}}

<u>Simplifying curly brackets </u>

{:\implies{\small{\sf{18 \div 16 + \bigg[8 \bigg\{16 \div 4\bigg\} \bigg]}}}}

{:\implies{\small{\sf{18 \div 16 + \bigg[8 \bigg\{ \dfrac{16}{4} \bigg\} \bigg]}}}}

{:\implies{\small{\sf{18 \div 16 + \bigg[8 \bigg\{ \cancel{\dfrac{16}{4}} \bigg\} \bigg]}}}}

{:\implies{\small{\sf{18 \div 16 + \bigg[8 \times 4\bigg]}}}}

<u>Simplifying square brackets </u>

{:\implies{\small{\sf{18 \div 16 + \bigg[8 \times 4\bigg]}}}}

{:\implies{\small{\sf{18 \div 16 + 32}}}}

<u>According to BODMAS rule simplifying devision </u>

{:\implies{\small{\sf{18 \div 16 + 32}}}}

{:\implies{\small{\sf{ \dfrac{18}{16}  + 32}}}}

{:\implies{\small{\sf{{\cancel{\dfrac{18}{16}}  + 32}}}}}

{:\implies{\small{\sf{ 1.125 + 32}}}}

<u>Now, according to BODMAS rule simplifying addition</u>

{:\implies{\small{\sf{ 1.125 + 32}}}}

{:\implies{\small{\sf{33.125}}}}

{:\implies{\underline{\boxed{\pmb{\sf{Answer = 33.125}}}}}}

<u>∴ The answer is 33.125.</u>

<u>\underline{\rule{200pt}{2.5pt}}</u>

3 0
2 years ago
Read 2 more answers
Kevin is three years older than Daniel. Two years ago, Kevin was 4 times as old as Daniel.
GarryVolchara [31]

Answer:

I believe that Kevin is 6 years old now.

Step-by-step explanation:

I used the guess and check method to figure this out.

First, I began by making Daniel 1 years old, two years ago. Kevin was 4 times as old as Daniel two years ago, so he would be 4 at the time. Now, Daniel would be 3 and Kevin would be 6 years old. The statement that Kevin is three years older than Daniel would confirm this, because 6-3=3.  Hope this helps, this is my first time answering:)

3 0
3 years ago
What is 3% equal to?
Vsevolod [243]

Answer:

0.03 or 3/100

6 0
4 years ago
F (x) = 2-3 + 7. Find the inverse of f(x) and its domain.
dlinn [17]

Step-by-step explanation:

Ooh ape--x I just did this a few weeks ago. To find the inverse, you need to reverse the process. So, instead of adding subtract, and instead of dividing, multiply. It's so easy once you get it.

Start by substituting y for f(x), and then switching x and y, and once you've solved for y I believe, you write f^-1(x) in y's place.

4 0
3 years ago
A person takes up 18 inches of space on a stadium bleacher. If one row of bleachers is 100 feet long and
o-na [289]
1,333.33 people can fit
5 0
3 years ago
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