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3 years ago

(+2) – (-6) what's the answer to this please write it out

Mathematics

2 answers:

Iteru [2.4K]3 years ago

5 0

Answer:

Step-by-step explanation:

2- -6

change subtraction sign to addition

2+-6

change negative sign to positive

2+6

solve

harkovskaia [24]3 years ago

3 0

Answer:

Step-by-step explanation:

+2-(-6)=2+6

the two negatives cancel each other out

2+6=8

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Answer:

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3 years ago

A rectangular prism must have a base with an area of no more than 27 square meters. The width of the base must be 9 meters less

den301095 [7]

Answer:

The maximum height of the prism is $12\ m$

Step-by-step explanation:

Let

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see the attached figure

but remember that

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the solution for x is the interval ------> $(9,12]$

The maximum height of the prism is $12\ m$

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2 years ago

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3 years ago

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3 years ago

If M is the midpoint of XY, find the coordinates of X if M(-3,-1) and Y(-8,6)

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$\bf \textit{middle point of 2 points }\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
X&({{ a}}\quad ,&{{ b}})\quad 
% (c,d)
Y&({{ -8}}\quad ,&{{ 6}})
\end{array}\qquad
% coordinates of midpoint 
\left(\cfrac{{{ x_2}} + {{ x_1}}}{2}\quad ,\quad \cfrac{{{ y_2}} + {{ y_1}}}{2} \right)$

$\bf \left( \cfrac{-8+a}{2}~,~\cfrac{6+b}{2} \right)=\stackrel{M}{(-3,-1)}\implies 
\begin{cases}
\cfrac{-8+a}{2}=-3\\\\
-8+a=-6\\
\boxed{a=2}\\
----------\\
\cfrac{6+b}{2}=-1\\\\
6+b=-2\\
\boxed{b=-8}
\end{cases}$

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2 years ago

(+2) – (-6) what's the answer to this please write it out​

(+2) – (-6) what's the answer to this please write it out