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Misha Larkins [42]
3 years ago
14

Which one is it? I really need help.​

Mathematics
2 answers:
Vadim26 [7]3 years ago
8 0

Answer:

I think the answer is A. The submarine was 144 feet below sea level(-144) after 9 minutes.

Step-by-step explanation:

This is how i got me answer:

z=9

14 x 9 = 126

-270 + 126 = -144

Blizzard [7]3 years ago
5 0

Answer:

-144ft below sea level

Step-by-step explanation:

It is a linear equation. Written as y=14x-270. So what you do is substitute x for 9,

y=14(9)-270

y=126-270

y=-144

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Nookie1986 [14]
B and A if Im not wrong hope I didn’t get it wrong
4 0
3 years ago
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When p is false and q is true, then p or q is true or not?
Afina-wow [57]
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5 0
4 years ago
Solve the following equation?<br> 6x-9+5x+8=4x+9+7x-10
kaheart [24]
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6 0
4 years ago
5 -2x + 6y= -38<br> ? 3x – 4y = 32<br> •(-4, - 5)<br> •(-5, 4)<br> •(1, – 6)<br> (4, - 5)
Svet_ta [14]

Answer:

Option D (4, -5)

Step-by-step explanation:

This question can be solved by various methods. I will be using the hit and trial method. I will plug in all the options in the both the given equations and see if they  balance simultaneously.

Checking Option 1 by plugging (-4, -5) in the first equation:

-2(-4) + 6(-5) = -38 implies 8 - 30 = -38 (not true).

Checking Option 2 by plugging (-5, 4) in the first equation:

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Checking Option 3 by plugging (1, -6) in the second equation:

3(1) - 4(-6) = 32 implies 3 + 24 = 32 (not true).

Since all the options except Option 4 have been ruled out, therefore, (4,-5) is the correct answer!!!

7 0
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