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irina [24]
3 years ago
6

Help!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
kozerog [31]3 years ago
3 0
She did not multiply both sides of the equation by 2.

   2x-6y =-2
<u>+ 2x+6y=3
</u><u />   4x      =1
 
x=1/4
y=5/12

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At sea level, earths atmosphere exerts a pressure of 1 atmosphere. Atmospheric pressure P (in atmospheres) decreases with altitu
PtichkaEL [24]

Answer:

Initial Amount=1

Decay Factor=0.99987

Decay Rate=0.013%

Step-by-step explanation:

If P = 0.99987ᵃ

I. Initial amount

The initial amount is when a=0

P = 0.99987⁰ = 1

The Pressure at Sea Level=1

II. Decay factor

This is like the decay constant. From the model, P = 0.99987ᵃ, the decay constant/factor is 0.99987.

III. Decay Rate = 1-0.99987 = 0.00013

Expressed in Percentage = 0.013%

5 0
3 years ago
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Romashka [77]

Answer:

y=-3x-3

Step-by-step explanation:

8 0
3 years ago
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Scorpion4ik [409]
Its 144. you just subtract the 121 from 265.
4 0
3 years ago
A line passes through the point (4,-4) and has a slope of 5/4.
tester [92]

Answer:

y = 5/4x - 9

Step-by-step explanation:

y = mx + b

when you plot 4, -4 you have your first clue and point. then go up 5 and right 4 or down5 and left 4. When you go down you will reach the y intercept. On the number- 9. So -9 is your y intercept which goes in b.

Since 5/4 goes in the mx since it is slope the answer is y = 5/4 - 9

6 0
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I dont really know what i am supposed to do so if someone could explain that would be awesome
DerKrebs [107]
You multiply the slope with the points
8 0
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