Well because if she had a calculator, that wouldn't be her answer. If you put that into a decimal point, 0.875 times 1.5, 72 would make no sense.
The linear function that can be used to represent the temperature in x hours after 6 pm is given by:
f(x) = 37 - 0.65x.
<h3>What is a linear function?</h3>
A linear function is modeled by:
y = mx + b
In which:
- m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
- b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.
In this problem:
- The y-intercept is the initial temperature of 37ºC.
- The slope is the rate of change of -0.65ºC/h.
Hence the function is:
f(x) = 37 - 0.65x.
More can be learned about linear functions at brainly.com/question/24808124
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51-9= 42
42/3= 14
your answer would be 14 friends
CHECK:
3*14= 42
Answer:
5
Step-by-step explanation:
The maximum or minimum of a quadratic function occurs at x= −b/2a. If a is negative, the maximum value of the function is f(−b/2a). If a is positive, the minimum value of the function is f(−b/2a)
fmax
c=ac²+bc+c occurs at c=−b/2a
Find the value of c
equal to −b/2a
c=−b/2a
Substitute in the values of a
and b
c=−120/2(−12)
Remove parentheses.
c=−120/2(−12)
c=−60/−12
c= 5