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UkoKoshka [18]
3 years ago
11

-2+d=-3 got no clue on how this works

Mathematics
1 answer:
Vsevolod [243]3 years ago
3 0

Answer:

<h2>d = -1</h2>

Step-by-step explanation:

-2+d=-3\\\\\mathrm{Add\:}2\mathrm{\:to\:both\:sides}\\-2+d+2=-3+2\\\\Simplify\\d=-1

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56/10
divide by 2
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8 0
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True or false 120% of a whole number is always greater than the number? and why?
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5 0
2 years ago
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How to determine the maximum and minimum lengths of a missing side on a triangle?
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6 0
3 years ago
Need help with number 43 and 45 and need to show the work
Alex787 [66]
43:
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5 0
2 years ago
100 points and brainliest for correct answer!
MatroZZZ [7]
Answer B.

∑fx=1637,∑fx
2
=127663,∑f=21
x
ˉ
=Mean=
∑t
∑fx
​
=77.95
σ
2
=
∑f
∑fx
2

​
−(
x
ˉ
)
2
=
21
127663
​
−(77.95)
2
=2.987
σ=1.728
4 0
2 years ago
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