Answer:
D. Each polygon has two pairs of congruent sides that are adjacent.
Answer:
Solution is given by (-2,-1)
Step-by-step explanation:
2x-3y = -1
11x-9y = -13
Multiplying equation 1 by -3 and adding it to equation 2 ,we get
-6x+9y = 3
11x -9y = -13
___________
5x = -10
gives x = -2
plugging this value in equation (1) ,we get
2(-2) -3y = -1
-4 -3y =-1
-3y =-1+4
-3y =3
y = -1
solution is (-2,-1)
Answer:
Step-by-step explanation:
First you must notice each of them share an x value in the exponent. So with that being said x is your GCF or in otherwords greatest common factor.
So you have an x(x^3-6x^2+9x)
you must take x from all of them inside the ( )
because x is your gcf :)
So x(x^2-6x+9) Now you use the trail and method error
to get (x-3 )(x-3 )you need two numbers that multiply to 9 but add up to -6 so... that would hmmm -3 and -3 cause -3*-3=9 and -3+-3=-6
don't forget your GCF bring it down because it's always in your answer
x(x-3)(x-3)
or..
x(x-3)^2 both are the same thing
ANSWER CAN BE
x(x-3)(x-3) OR x(x-3)^2
Both are the same thing just written different! You're welcome!
Answer:
a) 
b) When t = 10, Q = 7.845.
Step-by-step explanation:
The value of a quantity after t years is given by the following formula:
In which 
is the initial quantity and r is the rate that it changes. If it increases, r is positive. If it decreases, r is negative.
a) Write a formula for Q as a function of t.
The initial value of a quantity Q (at year t = 0) is 112.8.
This means that 
.
The quantity is decreasing by 23.4% per year.
This means that 
So
b) What is the value of Q when t = 10?
This is Q(10).
When t = 10, Q = 7.845.
