Notify your teacher and make sure you check your answer. Like a lot.
Use the calculator even. Go online ask google.
But I guess I can help you out with this one. If my math is correct it is.
D. $492.75

4 0

3 years ago

How do I write m is the set of integers that are greater than negative one and less than four

Angelina_Jolie [31]

$\bf \stackrel{\textit{\large Set Builder notation}}{\{m|m\in \mathbb{Z}, m > -1, m < 4\}}~\hfill \stackrel{\textit{\large or this way}}{-1$

7 0

3 years ago

The remains of an ancient ball court include a rectangular playing alley with a perimeter of about 18m. The length of the alley

mariarad [96]

Given:

Perimeter = 18 m

The formula for the perimeter of a rectangle is:

$P=2l+2w$

Where:

l = lenght

w = width

In this case, we have that:

l = 2w

Therefore, we substitute the values in the formula:

$\begin{gathered} P=2l+2w \\ 18=2(2w)+2w \end{gathered}$

And solve for w:

$\begin{gathered} 18=4w+2w \\ 18=6w \\ \frac{18}{6}=\frac{6w}{6} \\ w=3 \end{gathered}$

For the length:

$l=2w=2(3)=6$

Answer:

The width is 3 m

The length is 6 m

3 0

1 year ago