Which number line model represents the expression -4+7.25
1 answer:
You might be interested in
Answer: graph E.
A geometric sequence can be written as:
where:
a₁ = first term = 4
r = ratio = 0.5
Substituting the numbers, we have:
or else
This is an exponential function with base less than 1. Therefore, we can exclude graph C (which depicts a linear function), and graphs A and D (which depict an exponential function with base greater than 1).
In order to choose between graph B and E, let's evaluate the function in two different points:
Therefore, we need to look for the graph passing through the points (1, 4) and (2, 2). That is graph E.
The probabilities of knocking down zero, one, and two pins are 
and 
, respectively. The total probability of knocking down at most two is thus 
, or 
.