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UkoKoshka [18]
3 years ago
13

A submarine is traveling at a depth of 152 feet below sea level. The submarine was given instructions to rise 63 feet and then d

rop 84 feet.
Mathematics
1 answer:
Nadusha1986 [10]3 years ago
4 0
It started at 152 feet below sea level( or -152 feet), then was instructed to rise 63 feet. That would bring it to 89 feet. Then to fall 84 would leave it at 173 feet below sea level(or -173 feet)
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[Geometry Basics] I'm just checking if this is correct:
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\bf ~~~~~~~~~~~~\textit{middle point of 2 points }
\\\\
\begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
%  (a,b)
&&(~ x &,& y~) 
%  (c,d)
&&(~ -9 &,& -1~)
\end{array}\qquad
%   coordinates of midpoint 
\left(\cfrac{ x_2 +  x_1}{2}\quad ,\quad \cfrac{ y_2 +  y_1}{2} \right)
\\\\\\
\left( \cfrac{-9+x}{2}~~,~~\cfrac{-1+y}{2} \right)=\stackrel{midpoint}{(8,14)}\implies 
\begin{cases}
\cfrac{-9+x}{2}=8\\\\
-9+x=16\\
\boxed{x=25}\\
-------\\
\cfrac{-1+y}{2} =14\\\\
-1+y=28\\
\boxed{y=29}
\end{cases}

\bf -------------------------------\\\\
\begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
%  (a,b)
&&(~ x &,& y~) 
%  (c,d)
&&(~10 &,& 12~)
\end{array}\qquad
\\\\\\
\left( \cfrac{10+x}{2}~~,~~\cfrac{12+y}{2} \right)=\stackrel{midpoint}{(6,9)}\implies 
\begin{cases}
\cfrac{10+x}{2}=6\\\\
10+x=12\\
\boxed{x=2}\\
-------\\
\cfrac{12+y}{2} =9\\\\
12+y=18\\
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\end{cases}
3 0
3 years ago
Help me and the 1st 2 answer will get brainliest and i need asap im in the test
likoan [24]

Answer:

C

Step-by-step explanation:

C

6 0
3 years ago
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3 0
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Yuliya22 [10]

Answer:

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7 0
3 years ago
The table below shows the number of cameras made when an assembly line runs at a constant rate for a certain number of hours. Nu
jeka57 [31]

Computing the rate we get:

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7 0
1 year ago
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