Answer:
Point-Slope form: 
standard form: 
Step-by-step explanation:
The standard form is given by: 
The point-slope form is given by: 
- <em>Let's call
as point
, and</em>
<em>point
as point
</em>
- <em>We also know that the slope
is given by
</em>
Let's find the slope:

1. So, point slope form can be written as:

2. Rearranging this equation and bringing all x's and y's to one side and the number to another side will give us the standard form. So:

<em>But A, B, and C (standard form) needs to be integers, so to get rid of the denominator , we multiply the whole equation by 15. So we have:</em>

<em>We can factor out a 3, so it becomes:</em>

So standard form is 
Answer:
328 square inches
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Step-by-step explanation:
Lateral Area of Pyramid:
L = 1/2P<em>l</em>
<em>l</em> = 15.9
P = 2(8.2) + 2(8.2) = 32.8
L = 1/2(32.8)(15.9) = 260.76
Surface Area:
SA = B + L
B = (8.2)(8.2) = 67.24
L = 1/2(32.8)(15.9) = 260.76
SA = 67.24 + 260.76 = 328
Answer:
it would take about 11 to 13 days
Step-by-step explanation:
Given:
DE contains the points D(1, -2) and E(3, 4).
FG contains the points F(-1, 2) and G(4, 0).
To find:
Is DE perpendicular to FG.
Solution:
Slope of DE:

Here 


m = 3
Slope of FG:

Here 



<em>Two lines are perpendicular if product their slopes are -1.</em>
Slope of DE × Slope of FG


≠ -1
The solution is no, because the product of the slopes is not -1.