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miskamm [114]
3 years ago
7

Write an expression to describe a rule for the sequence. Then find the 100th term in the sequence. 5, 13, 21, 29, 37, 45, … (1 p

oint)
• 8n; 800
• 8n – 3; 797
• 3n – 8; 292
• 5 + 8n; 805
Mathematics
1 answer:
swat323 years ago
6 0
The sequence is going up by 8 so it must be 8n followed by something. 5 is 3 less than 8 so the full expression will be 8n-3.
Therefore the answer is 8n-3; 797
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Area of a triangle with verticals of (-4,1),(-7,5),(0,1)
Lynna [10]

Answer:

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Step-by-step explanation:

I assume that the three points given are the vertices of the triangle. So the three points are:

A (-4,1)

B (-7,5)

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The area of a triangle is given by:

A=\frac{1}{2}bh

where b is the base and h is the height.

Here we can take as follows:

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AC=\sqrt{(0-(-4))^2+(1-1)^2}=4

- The height of the triangle is therefore the perpendicular distance between AC and point B. This is equivalent the difference in the x-coordinate between any point on AC and B, so:

h=(5-1)=4 ft

Therefore, the area of the triangle is:

A=\frac{1}{2}(4)(4)=8 ft^2

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2 years ago
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zloy xaker [14]
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Answer:

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2 years ago
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