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lubasha [3.4K]
2 years ago
13

PLEASE HELP ASAP ILL GIVE BRAINLIEST

Mathematics
1 answer:
Veseljchak [2.6K]2 years ago
5 0

Answer:

x>-23/7

Step-by-step explanation:

-23<7x

7x>-23

x>-23/7

the answer is x>-23/7

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When traveling to work, Cherise averages 60 miles per hour.Because of heavy traffic in the evening, she averages only 40 miles p
Slav-nsk [51]
<h3>Answer:  40 minutes</h3>

============================================================

Explanation:

The distance traveled is d = 80 miles.

When going to work, her speed is r = 60 mph. She takes t = d/r = 80/60 = 4/3 hours which converts to 80 minutes. Multiply by 60 to go from hours to minutes.

Notice how the '80' shows up twice (in "80 miles" and "80 minutes"). This is because traveling 60 mph is the same as traveling 1 mile per minute.

-----------------

Now as she's coming home, her speed becomes r = 40 and she takes t = d/r = 80/40 = 2 hours = 120 minutes.

The difference in time values is 120 - 80 = 40 minutes.

Her commute back home takes 40 more minutes compared to the morning drive to work.

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3 years ago
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Answer:

18√5  or Decimal Form: 40.24922359…

Step-by-step explanation:

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2 years ago
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PLZ HELP! QUICK! WILL MARK BRAINLIEST!!! 20 POINTS!!! A portion of the Quadratic Formula proof is shown. Fill in the missing sta
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Answer:

D.

Step-by-step explanation:

After the third step, take the square root of both sides.

Third Step:

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Thus, the fourth step is:

\sqrt{(x+\frac{b}{2a})^2}=\sqrt{ \frac{b^2-4ac}{4a^2}} }

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