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sukhopar [10]
2 years ago
11

Convert the following equation into slope intercept form. 14x – 7y = 21 y = [?]x - [

Mathematics
1 answer:
anzhelika [568]2 years ago
4 0
Answer: y=2x-3 . . . .
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Write the equation of the circle with center (−1, −3) and (−7, −5) a point on the circle.
Pepsi [2]
So, we know the center is at -1, -3, hmmm what's the radius anyway?

well, the radius will be the distance from the center to any point on the circle, it just so happen that we know -7, -5 is on it, thus

\bf ~~~~~~~~~~~~\textit{distance between 2 points}\\\\
\begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
%  (a,b)
&&(~ -1 &,& -3~) 
%  (c,d)
&&(~ -7 &,& -5~)
\end{array}
\\\\\\
d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}
\\\\\\
r=\sqrt{[-7-(-1)]^2+[-5-(-3)]^2}\implies r=\sqrt{(-7+1)^2+(-5+3)^2}
\\\\\\
r=\sqrt{36+4}\implies r=\sqrt{40}\\\\
-------------------------------

\bf \textit{equation of a circle}\\\\ 
(x- h)^2+(y- k)^2= r^2
\qquad 
center~~(\stackrel{-1}{ h},\stackrel{-3}{ k})\qquad \qquad 
radius=\stackrel{\sqrt{40}}{ r}
\\\\\\\
[x-(-1)]^2+[y-(-3)]^2=(\sqrt{40})^2\implies (x+1)^2+(y+3)^2=40
5 0
3 years ago
10•f(7)+9•g(-1)? What’s the answerrr
Inessa [10]

Answer:

= 70f - 9g

Step-by-step explanation:

1. Remove parentheses

2. Multiply the numbers

3. Multiply the numbers

5 0
3 years ago
The circumference of a circle is 48π units. what is the radius of the circle?
tresset_1 [31]
The radius would be 75.36. In order to receive this answer, you must do 48 times 3.14. You will then receive an answer of 150.72. Then, you have to divide 150.72 by 2 in order to obtain your final answer : 75.36.
8 0
3 years ago
What would the y-intercept be<br> Ill Give brainly <br> no bots pls
kow [346]

Answer:

1,000

Step-by-step explanation:

the line starts at (0,1000) on the y axis

8 0
2 years ago
Brent biked 800 meters on Friday. On​ Saturday, he biked 3 kilometers. On​ Sunday, he biked 2 kilometer​s, 600 meters. How many
DochEvi [55]

Answer:

333

Step-by-step explanation:

3 0
3 years ago
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