Answer:
Step-by-step explanation:
Assuming the system is solvable in the first place, create an augmented matrix of coefficients from the equations. Then put the matrix into reduced row echelon form.
Example is attached.
"Demonstrate by solving the following system."
You need to provide the system of equations.
Degree is exponent, so 5th degree
difference of 2 perfect squares
a^2-b^2=(a-b)(a+b)
t^2-5^2=(t-5)(t+5)
2nd one
complete square
take 1/2 of linear coefient and square it
-6/2=-3, (-3)^2=9
add that to both sides
x^2-6x+9=-8+9
x^2-6x+9=1
factor
(x-3)^2=1
sqrt
take neg and pos root
x-3=+/-1
add 3
x=3+/-1
x=3+1 or x=3-1
x=4 or 2
3rd option
Answer:
Regular Deal
Step-by-step explanation:
<em>Pay as you go</em>
Pay only $6 each time you work out
<em>Regular Deal</em>
Pay $50 a month and $2 each time you work out
<em>All-in-one price! </em>
Pay just $100 per month for unlimited use of our great facilities
1. Carlo thinks he will go to the gym about 20 times a month. Which of these options is the least expensive for Carlo? Show how you determined your answer.
For 20 visits to the gym:
<em></em>
<em>Pay as you go:</em>
20 × $6 = $120
<em>Regular Deal</em>
$50 + 20 × $2 = $50 + $40 = $90
<em>All-in-one price! </em>
$100
<u><em>Answer:</em></u>
The best deal is for 20 visits per month is: <em>Regular Deal</em>
Answer:
6
Step-by-step explanation:
(8:100) * 75
(8*75) : 100
600:100 = 6