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liraira [26]
3 years ago
13

9. The water level is 3 feet below your dock. The tide goes out, and the water level lowers 1 foot. A storm surge comes in, and

the water level rises 2 feet. Write an integer to indicate the new water level

Mathematics
2 answers:
Olenka [21]3 years ago
6 0

Answer:  Negative integer is used to indicate the new water level i.e. 2 feet below the dock.

Step-by-step explanation:

Since we have given that

The water level is 3 feet below your dock.

It means the level of water = -3 feet

The tide goes out, and the water level lowers 1 foot

The level of water = -1 feet

A storm surge comes in, and the water level rises 2 feet.

The level of water = +2 feet

According to question, it becomes

-3-1+2\\\\=-4+2\\\\=-2\ feet

Hence, Negative integer is used to indicate the new water level i.e. 2 feet below the dock.

guapka [62]3 years ago
3 0
We know that that the water level is 3 feet below your deck. (-3)
When the tide goes out, the water level lowers 1 foot. (-1)
A storm surge comes in, the water level rises 2 feet. (+2)

New water level: -3-1+2= -4+2= -2
The new water level is 2 feet below the dock.

Mark as brainliest pls. Any concern or comment, talk to me.
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1. Storing milk at temperatures colder than 35°F can affect its quality of taste. However, storing milk at temperatures warmer t
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Step-by-step explanation:

Consider the provided information.

Part (A)

Storing milk at temperatures colder than 35°F can affect its quality of taste. However, storing milk at temperatures warmer than 40°F is an unsafe food practice.

The union is written as A∪B or “A or B”.

The intersection of two sets is written as A∩B or “A and B”

We need to determine the inequalities represent the union of these improper storage.

That means we will use A∪B or “A or B”.

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15| x-7|+4-4=10|x-7|+4-4

Subtract 10|x-7| from both sides

15\left|x-7\right|-10\left|x-7\right|=10\left|x-7\right|-10\left|x-7\right|

5\left|x-7\right|=0\\\left|x-7\right|=0\\x=7

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Part (C) Match the solution,

\left|x+1\right|+5=2

Subtract 2 from both sides.

\left|x+1\right|=-3

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Hence, |x+1|+5=2 has no solution.

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Hence, |4x+12|=0 has one solution.

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\mathrm{If}\:|u|\:=\:a,\:a>0\:\mathrm{then}\:u\:=\:a\:\quad \mathrm{or}\quad \:u\:=\:-a

3x=-9\quad \mathrm{or}\quad \:3x=9\\x=-3\quad \mathrm{or}\quad \:x=3

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