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netineya [11]
4 years ago
5

I need some help please! ^_^

Mathematics
1 answer:
Degger [83]4 years ago
7 0
Perpendicular lines will have negative reciprocal slopes. What that means is if u have a slope of 1/2, to find the negative reciprocal, flip the slope and change the sign.......flip 2/1, change the sign -2/1 or just -2. So the negative reciprocal for the slope of 1/2 is -2. 

A. y = 1/5x + 3.....slope here is 1/5, so for a perpendicular line, u r gonna need an equation with the slope of -5.....and that would be : y + 3 = -5(x + 2).

B. Parallel lines will have the same slope. y = 5x - 2...the slope here is 5...so a parallel line will have a slope of 5.

y = mx + b
slope(m) = 5
(8,-2)...x = 8 and y = -2
now we sub, we r looking for b, the y intercept
-2 = 5(8) + b
-2 = 40 + b
-2 - 40 = b
-42 = b

so ur parallel equation is : y = 5x -42
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3 years ago
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Lynna [10]
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MrEQ
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4 years ago
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ella [17]

Answer:

sum of terms: 55550

Explanation:

\sf S_n = \dfrac{n}{2} (u_{start}+u_{end}})

Here the number of terms:

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Using the Formula:

\sf \dfrac{100}{2} (11+1100)

\sf 55550

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2 years ago
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Andrei [34K]
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Sergio039 [100]

Answer:

12

Step-by-step explanation:

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