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padilas [110]
2 years ago
12

Is 3 - -80 positive or negative?

Mathematics
1 answer:
Darina [25.2K]2 years ago
6 0

3-(-80) is 83, so positive.

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Find two consecutive positive integers such that the sum of their squares is 421 .
maria [59]
We assume the two numbers are x and (x+1)
so x^2+(x+1)^2=421
x^2+(x^2+2x+1)=421
2x^2+2x-420=0
According to the formula of quadratic 
x=14 or-15
cuz we know the two numbers are integers
so x=14
therefore the other number is 15
To make sure that's correct
14^2+15^2=421

Hope that helps you!!


4 0
3 years ago
8. Daren and Josh are pretty good free throw shooters. Daren makes 75% of the
BaLLatris [955]

Answer:

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2 years ago
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3 0
3 years ago
Evaluate the numerical expression. 5 + (46 + 7) * 2
bulgar [2K]
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3 0
3 years ago
Read 2 more answers
Need help !!!!!!!! #6
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Answer:

C

Step-by-step explanation:

7 0
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