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3241004551 [841]
3 years ago
15

Please answer all questions thank you.

Mathematics
1 answer:
Ad libitum [116K]3 years ago
4 0
1) 78.5/pi = 25
radius = 5
The one 5 digits away from that coordinate is (2,-1)

2) This question is area, not perimeter. The width and length has to be added by 4 because of 2 feet on both sides.
9*10 = 90 - 30 = 60

3) 25pi according to pythagorean theorem.
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Step-by-step explanation:

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8 0
3 years ago
Based on the information below, what are the values of x and y of the solution to the system of equations used to create the inf
Alborosie

Answer:

Option D) is correct

That is x=2 , y=-5

Step-by-step explanation:

Given that the |A|=\left| \begin{array}{cc}4&-6\\ 8&-2\end{array}\right|, \left|A_x\right|=\left|\begin{array}{cc}38&-6\\ 28&-2\end{array}\right|, \left|A_y\right|=\left|\begin{array}{cc}4&38\\ 8&26\end{array}\right|

To find their determinants

|A|=\left| \begin{array}{cc}4&-6\\ 8&-2\end{array}\right|

=-8+48

=40

Therefore |A|=40

|A_x|=\left|\begin{array}{cc}38&-6\\ 28&-2\end{array}\right|

=-76+156

=80

Therefore |A_x|=80

|A_y|=\left|\begin{array}{cc}4&38\\ 8&26\end{array}\right|

=104-304

=-200

Therefore |A_y|=-200

To find the values of x and y:

x=\frac{|A_x|}{|A|}\ \textrm{and}\ y=\frac{|A_y|}{|A|}

x=\frac{80}{40} and y=\frac{-200}{40}

x=2 and y=-5

Option D) is correct

That is x=2 , y=-5

7 0
3 years ago
Read 2 more answers
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