Answer:
help me help all time what u need :))))))
Step-by-step explanation:
Answer:
f(10)=40960 people
Step-by-step explanation:
The number of people who have heard the rumour doubles every day.
If on the first day, 80 people have heard,
On the Second day, 160 persons would have heard.
This is an example of an exponential sequence whose growth ratio is 2.
The nth term of an exponential sequence is derived using the formula:
Where:
a=first term
r=growth ratio.
In this case, a=80, r=2
Therefore:
At any time t, the number who would have heard the rumor is:
(b)In 10 days,
=40960
In 20 days, 40960 persons would have heard the rumor.
Answer:
Option B is correct.
Step-by-step explanation:
Point slope form:
The equation of straight line is given by:
......[1] where m is the slope and a point lies on the coordinate plane
From the given graph:
Consider two points i.e,
(-2, 4) and (2, -2)
Calculate slope:
Slope(m) is given by;
Substitute the given points we have;
Now, substitute the value of m and (-2, 4) in [1] we have;
or
Therefore, the equation is graphed here is
A^2 + b^2 = c^2
5^2 + 7^2 = c^2
25 + 49 = c^2
74 = c^2
sqrt 74 = c
8.6 = c
so grant's to Isabelle's is 8.6 blocks, then from there to hannah's house, which is 7 blocks....so he walks a total of 8.6 + 7 = 15.6 blocks