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AleksandrR [38]
3 years ago
6

Help with all these plz!

Mathematics
1 answer:
spayn [35]3 years ago
4 0

Answer:

9    10     10   17   3

Step-by-step explanation:

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F(x)=2x^2-5;find when f(x)=-7​
Daniel [21]

Answer:

x=i or no solution exists depending on the user's grade

Step-by-step explanation:

f(x) = 2x^2-5

-7 = 2x^2-5

-2 = 2x^2, x^2=-1, x=i

6 0
2 years ago
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Translate the phrase into an algebraic expression 7 more than c
Svetllana [295]

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Step-by-step explanation:

c+7

you have 7 more then a number c

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3 years ago
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svet-max [94.6K]
(Answer coming from someone who’s stressed himself)
Upset stomach.
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4 0
3 years ago
What is a good estimate for 380% of 60
lana [24]
I would multiply 60 by 3, since its 300+%

60 x 3 = 180 

From there I would then add at least half of 60, which is 30

180 + 30 = 210

Since it is 380, I would just add another 20 to the equation to get around :

210 + 20 = 230

This should be a good enough estimate that is close to 380% of 60 <span />
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3 years ago
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