Answer:
B
Step-by-step explanation:
To find the x- intercepts let f(x) = 0 , that is
(x + 1)(x + 4) = 0
Equate each factor to zero and solve for x
x + 4 = 0 ⇒ x = - 4
x + 1 = 0 ⇒ x = - 1
The x- intercepts are (- 4, 0 ) and (- 1, 0 )
We know that Marcus spent 10 hours on his homework this week so:
10 hours = 100%
Marcus is saying that he spent 110% more time doing his homework this week, in comparison to last week.
Then to see if he is correct we have to find 110% of 10 hours.
So if: 100% of 10 hours = 10 hours
And: 10% of 10 hours (equivalent to 600 minutes) = 1 hour (or 60 minutes)
Then we add the two: 10 hours + 1 hour
And we get: 11 hours
As a result, Marcus is correct; he did spend 110% more time on his homework this week.
Hope this helps! :D
Y2-y1/x2-x1 = 7-8/-3-4=-1/-7 =1/7
The common ratio of a geometric sequence is the ratio of any term to the one before it. Here, you can find it by
... 6/-2 = -3
or, if you prefer the minus sign in the numerator, ...
... -18/6 = -3
or the ratio of any other sequential terms.
The common ratio is -3.
