Answer:
Ellen invested $60 and Bob invested $140
Step-by-step explanation:
let the two amounts invested by 3x and 7x
(notice 3x : 7x = 3 : 7 )
then 3x + 7x = 200
10x = 200
x = 20
then 3x = 3(20) = 60
and 7x = 7(20) = 140
60+140=200
We have sequence equation 
.
In this case n is a natural number (1, 2, 3, ...).
So start inserting and computing value of 
given that you know the value of n and a.
(first term)
Hope this helps.
The answer is a square.
All four sides are congruent.
Answer:
have you found the answer yet??
Step-by-step explanation:
Answer:
[-5,5; +∞)
Step-by-step explanation:
according to the given grid the vertex of the parabola is (-0,5; -5,5).
The domain of f is: [-5,5; +∞)
