Answer: -2
Different in Squares: a^2 −b^2 =(a+b)(a−b)
Rad 7^2-3^2 —> Rad 7^2=7 and -3^2= -9
—> 7-9= -2
Answer: -3/7
Step-by-step explanation:
The first step is to find the slope of the line
y = mx + c where m is the slope of the line
Rearrange the equation and we get
3y = 7x + 7
y = 7x/3 + 7/3
So the slope of the line 7x - 3y = -7 is 7/3
There is another rule that states: The product of the slopes of two lines perpendicular to each other is -1
So, the slope of the line perpendicular to 7x - 3y = -7 is -1/(7/3) = -3/7
Answer:
2 years
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3x + 8 = 17
Subtract 8 from both sides
3x + 8 - 8 = 17 - 8
Simplifying
3x = 9
Divide both sides by 3
3x/3 = 9/3
Simplifying
x = 3
Answer
x = 3
The percentile decrease is 81%. 200 is 81% of 248 :3