80
2 answers:
Answer:
The cricket make approximately 3 chirps in 15 seconds if the temperature is 80°F.
Step-by-step explanation:
We are given the following in the question:
The above equation is used approximate the temperature y in degrees Fahrenheit based on the number of chirps x a cricket makes in 15 seconds.
The attached image shows the graph for the given equation.
Now, we have to find the number of chirps a cricket will make in 15 seconds if the temperature is 80°F.
Putting y = 80 in the given equation, we get:
Thus, the cricket make approximately 3 chirps in 15 seconds if the temperature is 80°F.
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The graph of function f(x) and g(x) is parallel lines separated by 1 unit.
In this question we have been given two functions f(x) = - 3x + 4 and g(x) = f(x) + 1
We need to graph these functions and then describe the graph.
The graph of given functions is as shown below.
The graph of function f(x) is a straight line with slope -3 and y-intercept 4.
The function g(x) is nothing but but function f(x) translated upward by 1 unit.
The graph of function g(x) is also a straight line with slope -3 and y-intercept 5.
Therefore, the graph of function f(x) and g(x) is parallel lines separated by 1 unit.
Learn more about graph of function here:
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Answer:
Step-by-step explanation:
Given that the number of children in a household has a binomial distribution with parameters n-8 and p-50%
As per binomial definition we have
=
a) P(x=3 or 7) = P(3)+P(7) = 0.2188+0.0313=0.2501
b) P(X≤5)=0.8555
c) P(X≥3)=0.8555
d) P(x<7) =0.9648