im not going to give u the answer but all you do is
step by step :
#1. D2- (-6*2),(0*2)=(-12,0)
(3*2), (-9*2)= (6,-18)
(12*2),(4*2)=( 24,8)
x^2-4x=60
<h2>In a meeting room for a business event, there are 4 fewer chairs laid out in each row than the number of rows. The total number of chairs in the room is 60.</h2><h2 />
If each row has the same number of chairs as rows, then there is x^2 chairs.
Because there is 4 fewer chairs in every row, for every row you minus 4 - 4x
There a 60 chairs in total.
x^2 - 4x = 60
Substitute a number into the formula to check:
If there are 10 rows:
x = 10
10^2 - 4(10) = 60
100 - 40 = 60.
Just follow basic distribution and simplifying rules and your answer is x+46=
Answer:
18.8
Step-by-step explanation:
Answer:
The answer is m∠RPS=23°.
Step-by-step explanation
Our goal is to solve m∠ RPS and hence we need to solve the unknown x.
We get the equation
180°=6x+11°+7x+143°,
noticing m∠RPS+m∠QPR=180° that is a straight angle.
Then solving the equation gives
180°=13x+154°
13x=26°
x=2°.
Finally replacement gives
m∠ RPS=6*2°+11°=23°.
The answer is m∠RPS=23°.