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Novosadov [1.4K]
3 years ago
12

I don't know how to do systems of eliminations

Mathematics
1 answer:
Evgen [1.6K]3 years ago
4 0
The answer is (x,y)=(-5/6,-4/3)
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Write the slopes intercept form of the equation of the line through the given points.
Anika [276]
Slope intercept form
y=mx+b
m=slope
b=yintercept

slope for the line passing through the points (x1,y1) and (x2,y2) is
(y2-y1)/(x2-x1)

given
(2,-2) and (2,-3)
slope=(-3-(-2))/(2-2)=(-1)/0=undefined

y=undefinedx
this means that the equation is x=something
we see
(x,y)
(2,-2)
(2,-3)
x=2 is the equation
we cannot write it in slope intercept form
8 0
3 years ago
The sales tax on a $25,000 car is $1375. What is the sales tax rate?
Slav-nsk [51]

Answer:

$11 sales tax per $200

Step-by-step explanation:

1375/25,000 = 11/200

8 0
3 years ago
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25 is what percent of 365
kondaur [170]
\begin{array}{ccc}365&-&100\%\\25&-&x\%\end{array}\ \ \ |cross\ multiply\ both\ sides\\\\365\cdot x=25\cdot100\\365x=2500\ \ \ \ \ |divide\ both\ sides\ by\ 365\\\\x=\frac{2500}{365}\\\\x=\frac{2500:5}{365:5}=\frac{500}{73}=\boxed{6\frac{62}{73}\ (\%)\approx7\%}
3 0
3 years ago
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Express 14100000 in scientific notaion
S_A_V [24]
<span>14100000 written in scientific notation would be 1.41 x 10^7  because you have to make the number be between 1 and 10, so you would put your decimal between the 1 and 4, then you would count the number of zeros in standard form, then you would solve and your answer would be 1.41 x 10^7</span>
8 0
3 years ago
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Simplify the following radical expressions. 100 points<br> √8/√6<br> √2/10<br> √532<br><br> √3k√8
kenny6666 [7]

Answer:

√8/√6=1.632993

√2/10=0.141421

√3k√8=4.898979k

Step-by-step explanation:

or did u want it in a different form

7 0
3 years ago
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