‘a’ is a variable
so this means something multiplied by 1/2 = 11
to solve we will divide both sides by 1/2 to isolate ‘a’
so a= 22

you can verify by plugging 22 into a

so

(1/2)(22)=11
which is true

6 0

3 years ago

I need an expression for the area of the outer square, thanks

Yakvenalex [24]

The area of a square is calculated suing the formula x^2, where x is a side length of the square. This is just like length times width because a square has equal side lengths.

Take the left side and add the two lengths together because they form one side length of the square. A side length of the square is x + 4.

To find the area using the side length x + 4, you would square the side length. Your answer is (x + 4)^2.

7 0

3 years ago

The graph of a linear equation passes through (0, 5) and (-10, 0). What is the equation?<br>

anzhelika [568]

$(\stackrel{x_1}{0}~,~\stackrel{y_1}{5})\qquad (\stackrel{x_2}{-10}~,~\stackrel{y_2}{0}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{0}-\stackrel{y1}{5}}}{\underset{run} {\underset{x_2}{-10}-\underset{x_1}{0}}}\implies \cfrac{-5}{-10}\cfrac{1}{2}$

$\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{5}=\stackrel{m}{\cfrac{1}{2}}(x-\stackrel{x_1}{0}) \\\\\\ y-5-\cfrac{1}{2}x\implies y=\cfrac{1}{2}x+5$

8 0

3 years ago

If a car needs 5 gallons to go 160 miles how many gallons would it need to go 96 miles

Fynjy0 [20]

Answer:

3 gallons

Step-by-step explanation:

as u can travel 32 miles on 1 gallon, 32 x 3 = 96 so 1 x 3= 3

8 0

3 years ago