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Liula [17]
3 years ago
8

(05.03 MC)

Mathematics
1 answer:
Jlenok [28]3 years ago
3 0
Look it up on khan academy
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PLEASE HELP!!!! 20 points
Vladimir79 [104]

Answer:

Interval notation [-2, 0) U (0, 7]

Step-by-step explanation:

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3 years ago
What are the zeros of the quadratic function f(x)=2x^2+8x-3
Nezavi [6.7K]

Answer:

-2 +/-  [(sqrt 88)/ 4]

or

0.35, -4.35 to the nearest hundredth.

Step-by-step explanation:

2x^2 + 8x - 3 = 0

Using the quadratic formula:

x = [ -8 +/- sqrt (8^2 - 4*2*-3) ] / 4

=  -2 +/-  (sqrt 88)/ 4

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Which set of ordered pairs represents y as a function of x?
givi [52]
I think the answer is j
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julsineya [31]

Angelica would have painted the bedroom in 20 hours if every hour she painted 1/20. But she doesn't paint 1/20 of a room per hour but rather 30 minutes. That means it will take her 10 hours to paint the whole room.

Hope this helps.

4 0
3 years ago
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a $ 300 mountain bike is discounted by 30% and then discounted 10% for shoppers who arrive before 5:00am
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