<h3>
Answer: No it is not a solution </h3>
Here is why:
The ordered pair (2,-3) means x = 2 and y = -3 pair up together
Let's plug these x and y values into the equation to get...
y = 4x - 5
-3 = 4*2 - 5 .... replace with 2, replace y with -3
-3 = 8 - 5
-3 = 3 .... we end up with a false equation
Since we get a false equation at the end, this means the original equation is false too. So y = 4x-5 is false when (x,y) = (2,-3) meaning that this point is not on the line. So this point is not a solution.
Hello!
The equation for an exponential deprecation model like this is
, where a is the starting value, x is the number of years passed, and r is the amount the value deprecates each year.
We know what a and r are: a = 1600, as that is the original cost of the computer, and r = .18, as that's how much it decreases by. Substitute these two into the equation.
We get
. Now, subtract 1 - .18 to get our final answer.
is therefore the final model.
Hope this helps!
She got 87.5 percent. you find the answer by setting up a proportion
Answer:
∠DFE ≅ ∠DFG
Step-by-step explanation:
we know that
Triangles are congruent by SAS, if any pair of corresponding sides and their included angles are equal in both triangles
In this problem we have that
The pair of corresponding sides that are equal are
EF=GF and DF (is the same side for both triangles)
The included angle are ∠DFE and ∠DFG
therefore
The additional information needed to prove that triangles DEF and DGF are congruent by SAS is that angles ∠DFE and ∠DFG are equal
so
∠DFE ≅ ∠DFG