125 - 8 = 5³ - 2³ =
= ( 5 - 2 ) · ( 5² + 5 · 2 + 2² ) =
= 3 · ( 25 + 10 + 4 ) = 3 · 39 = 117
Answer:
A ) Difference of Cubes
Answer:
5. y = 2/3x + 1
8. y = 4/7x - 4
Step-by-step explanation:
5. (-6, -3) and (6, 5)
You can use the slope formula which is (y2-y1)/(x2-x1) to find the slope and plug it back into the slope-intercept form to find the y-intercept
(5-(-3)) / (6-(-6)) = 8 / 12 = 2/3
slope-intercept form: y=mx+b where m is the slope and b is the y-intercept
to find b you can plug in one of the coordinates and the slope
5 = 6(2/3) + b
5 = 4 + b
1 = b
y = 2/3x + 1
8. (-7, -8), (21, 8)
m = (8 - (-8)) / (21 - (-7)) = 16 / 28 = 4/7
plug in one of the coordinates and the slope to find b or the y-intercept
8 = 21(4/7) + b
8 = 12 + b
-4 = b
y = 4/7x - 4
Answer:
Step-by-step explanation:
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21 + p = 44
Subtract 21 from both sides;
21 + p - 21 = 44 - 21
p = 23
Answer: 4 people
Step-by-step explanation:
4 times 1/5= 4/5
The 4 goes on top ( numerator ) and the 5 would go on the bottom ( denominator )
Also another way to solve this is to use decimal form.
4 times 0.2 ( 0.2=1/5 )= 0.8
