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Elena L [17]
3 years ago
5

What's the difference between perpendicular bisectors and altitudes

Mathematics
1 answer:
FromTheMoon [43]3 years ago
4 0
Perpendicular bisectors help you find the centroid; altitudes help find the orthocenter. This is all in a triangle.
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An arithmetic sequence with a third term of 8 and a constant difference of 5
Vanyuwa [196]

\bf n^{th}\textit{ term of an arithmetic sequence} \\\\ a_n=a_1+(n-1)d\qquad  \begin{cases} n=n^{th}\ term\\ a_1=\textit{first term's value}\\ d=\textit{common difference}\\ \hrulefill\\[0.5em] a_3=8\\ n=3\\ d=5 \end{cases} \\\\\\ a_3=a_1+(3-1)5\implies 8=a_1+(2)5 \\\\\\ 8=a_1+10\implies -2=a_1 \\\\\\ \begin{cases} a_1=-2\\ d=5 \end{cases}\implies a_n=-2+(n-1)d

5 0
3 years ago
Plsss help meeeee 7^-8 divided by 7^-11
Andrej [43]

Answer:

i think the answer is 7^3

Step-by-step explanation:

when dividing numbers with exponents, you just subtract the smaller exponent from the larger one

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4 0
3 years ago
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Which of the following is the equation of a line parallel to the line y = 4x + 1,
Lisa [10]

Answer:

y = 4x - 19

Step-by-step explanation:

The line is parallel to the line whose equation is;

y = 4x + 1

Parallel lines have the same slope so the slope of our line is 4.

The line passes through point (5,1)

Slope = change in y ÷ change in x

Taking another point (x,y) on the line,

Slope = \frac{y-1}{x-5} = 4

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y = 4x - 19

4 0
3 years ago
I need to simplify this expression : 3.2 + (b + 5.7 )
Leni [432]
The simplified expression is b+8.9
6 0
3 years ago
HElp PLease 10 points
Grace [21]

Step-by-step explanation:

Given equation

y = 2x - 3

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Hope it will help.

7 0
2 years ago
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