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Bond [772]
3 years ago
7

Prove whether or not, the following set of coordinates form a right triangle. Complete your work in the space provided or upload

a file that can display math symbols if your work requires it. A = (2, 1), B = (7, 1), C = (2, 4)
Mathematics
1 answer:
Natasha2012 [34]3 years ago
6 0

This is a right triangle.

AC forms a line parallel with the Y axis.

AB forms a line parallel with the X axis.

The intersection of AC with AB must therefore be perpendicular.

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8 0
2 years ago
Use the table below to determine whether f(x) could represent a linear function If it could write f(x) in the form f(x)=mx+b
Elodia [21]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
Let F be the function given by f(x)= 2xe^x. Determine the interval(s) on which the graph is concave down.
Vika [28.1K]
Hello,

y=2xe^x
y'=2(e^x+xe^x)=2(x+1)e^x
y''=2(e^x+(x+1)e^x)=2(x+2)e^x

x     |-infinite   -2  0    +infinite
e^x | ++++++++++++++++++
x+2 |------------0 +++++++++++
y''    | -----------0 +++++++++++

y''<0 if x<-2
<span>The interval on which the graph is concave down is (-infinite -2[</span>

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Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What would the variables for a and b be? 3/x + 5/x^2 = (ax+b)/x^2
allsm [11]

Answer:

a=3,b=5

Step-by-step explanation:

\frac{3}{x}  +  \frac{5}{ {x}^{2}  }  \\  =  \frac{3x}{ {x}^{2} }   +  \frac{5}{ {x}^{2} }  \\  =  \frac{3x + 5}{ {x}^{2} }

so as you got it:

\frac{(ax + b)}{ {x}^{2} }  =  \frac{3x + 5}{ {x}^{2} }  \\ a = 3 \\ b = 5

4 0
3 years ago
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