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ss7ja [257]
3 years ago
9

7. Find the slope of the line that passes through the two given points. (-2,-1) and (-4,-7)

Mathematics
1 answer:
serious [3.7K]3 years ago
6 0

Answer:

3

Step-by-step explanation:

m = \frac{-1 - (-7)}{-2 - (-4)} = \frac{-1 +7}{-2 + 4} \\m = \frac{6}{2}\\m = 3

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1. Solve (50 Points) 17 of 2 를 Enter your math answer 2. In a cookie jar, 1/4 of the cookies are chocolate chip, and 1/2 of the
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3/8

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Derivative of cos(4x)
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Corey invested $800 in a CD at a simple interest rate. After 24 months, his account was worth $1000.
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2 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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