Answer:
4 hours.
Step-by-step explanation:
The equation which shows the relation between the number of hours (x) a fitness center member works at the center per week and the number of calories (y) he burns per week is y = 220x.
Now, A new fitness center member wants to burn 880 calories each week.
Therefore, the number of hours he should exercise in the center per week will be given by 880 = 220x, ⇒ x = 4 hours (Answer)
Remove the parentheses
x^3-9x^2+27x-27-x^3+3x^2-3x+1+7x^2=21x-28
x^2+24x-26=21x-28
x^2+24x-26-21x+28=0
x^2+3x+2=0
factor the expression
(x+2)(x+1)=0
sooo x1=-2 x2=-1
First we would solve both x’s
3x^2 - 5x
But 3 has the thingy thing (forgot the name haha)
Which means you have to multiply it by itself that many times which would be
3x3=9
So now it would be
9x- 5x = 4x
Which leaves 7 and 4x
Now you may subtract those two
7-4x= 3x
a1=5
a2=5+2=7
a3=7+2=9
a4=9+2=11
a5=11+2=13
Therefore the sequence is 5,7,9,11,13