84/7=12 9/3=3 hope this helped
To determine first if A Square is a Rhombus.
Let us define a rhombus.
1) Has all four sides equal.
2) Has opposite sides parallel.
3) The diagonals bisect the angles and bisect each other at 90 degrees.
A Square also displays all of these properties.
So a Square is ALWAYS a Rhombus.
But a Rhombus is a not always a Square, except that Rhombus is a Square.
Answer:
D.
Step-by-step explanation:
I am assuming they are not allowing graphing calculators for this, which is kind of wacky, if you ask me.
Anyway, the greater or equal to can technically be used interchangeably, so it looks like this:
y > 2x --> y = 2x
And so, with that equation, the sign just tells you what section of the graph is included. In this case, everything above the line.
Answer:
<em>She needs </em><em>77 </em><em>on her last test to earn an 82 for the quarter.</em>
Step-by-step explanation:
Maria scored 72, 97, and 82 on her first three math tests.
She wants to have a mean score of 82 for the quarter.
Let us assume that she must score x on her last test to earn an 82 for the quarter.
So the average score will be,
![=\dfrac{72+97+82+x}{4}](https://tex.z-dn.net/?f=%3D%5Cdfrac%7B72%2B97%2B82%2Bx%7D%7B4%7D)
But the average score is given as 82, so
![\Rightarrow \dfrac{72+97+82+x}{4}=82](https://tex.z-dn.net/?f=%5CRightarrow%20%5Cdfrac%7B72%2B97%2B82%2Bx%7D%7B4%7D%3D82)
![\Rightarrow 72+97+82+x=82\times 4](https://tex.z-dn.net/?f=%5CRightarrow%2072%2B97%2B82%2Bx%3D82%5Ctimes%204)
![\Rightarrow 72+97+82+x=328](https://tex.z-dn.net/?f=%5CRightarrow%2072%2B97%2B82%2Bx%3D328)
![\Rightarrow x=328-72-97-82](https://tex.z-dn.net/?f=%5CRightarrow%20x%3D328-72-97-82)
![\Rightarrow x=77](https://tex.z-dn.net/?f=%5CRightarrow%20x%3D77)