3 years ago

Which graph shows a system of equations with the solution (5,-3)?

Mathematics

1 answer:

creativ13 [48]3 years ago

3 0

Bottom right corner

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The level of the tide in a harbor changed from 9 1/4 ft to 4 1/2 ft above sea level over a period of 3 1/4 hr

kumpel [21]

Answer:

The answer is " $\bold{- \frac{19}{13} \ / hour}$ "

Step-by-step explanation:

Please find the complete question in the attached file.

Calculating the difference of $9 \frac{1}{4}\ and \ 4 \frac{1}{2}$ dividing the value by $3 \frac{1}{4}$

$\to 4 \frac{1}{2} - 9 \frac{1}{4}\\\\ \to \frac{9}{2} - \frac{37}{4}\\\\ \to \frac{18-37}{4} \\\\ \to -\frac{19}{4}\\\\\to -\frac{19}{4} \div \frac{13}{4}= -\frac{19}{4} \times \frac{4}{13} = -\frac{19}{13}\\$

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3 years ago

What is the answer to: − 2 − 1 3 . 8 = − 8 − ( 6 + 1 )?

Elza [17]

I’m pretty sure it’s -15 but don’t take my word for it

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2 years ago

I need help on 21 . Please

kupik [55]

Answer:

Air travels 6,920 meters in 20 seconds.

Step-by-step explanation:

If in one second air travels 346 meters, and you want to find out how many meters air travels in 20 seconds, then just multiply 346 by 20.

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3 years ago

Name a point that is the square root of 2 away from(-1,5)

DerKrebs [107]

Answer:

Any point on the circle (x + 1)² + (y - 5)² = 2 with center (-1 , 5) and radius √2

Step-by-step explanation:

circle: (x + 1)² + (y - 5)² = 2

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3 years ago

Alex17521 [72]

Answer:

Step-by-step explanation:

I think I am not sure I just started to do this in school...

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