Answer:

Step-by-step explanation:
Since angle RTS is a right angle, we have three similar triangles.
Thus, 
Cross Products, 
Take the square root: 
Hey there! I'm happy to help!
In geometry, a polygon with all equal sides is called an equilateral polygon. You can see the words equal and lateral in that word. Lateral has to do with sides, so the word equilateral literally means "equal sides". How cool!
Have a wonderful day! :D
Answer:
$6,120
Step-by-step explanation:
1/5 (one-fifth) of the family's annual income ($30,600) is spent on housing- as the word problem states.
You have to find 1/5 (one-fifth) of* $30,600.
Write it out as an equation.

*The <em>of</em><em> </em>in the word equation (1/5 of 30600) simply means multiplication.
Answer:
C, D
Step-by-step explanation:
This equation can be solved any of several ways. One that doesn't require much thought is using the quadratic formula.
For ax² +bx +c = 0, the solutions are ...

In the given equation, a=2, b=11, c=5, so this becomes ...

The solutions are ...
C. x = -5
D. x = -1/2
_____
My personal favorite is using a graphing calculator. The solutions are the x-intercepts of the expression on the left. That is, where its value is zero, as the equation says.
Answer:
first one is 23
second is 20
Step-by-step explanation: