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Mandarinka [93]
3 years ago
6

Let f(x)=81+3e−0.7x . What is the value of f(−1) ? Round the answer to the nearest hundredth. Enter your answer in the box.

Mathematics
2 answers:
skad [1K]3 years ago
8 0

Answer:

 f(-1)=89.85      

Step-by-step explanation:

Given : Function - f(x)=81+3e-0.7x      

To find : f(-1) nearest to hundredth

Solution :

step 1- Write the function

f(x)=81+3e-0.7x  

Step 2- Put the value of x=-1

f(-1)=81+3e-0.7(-1)  

Step 3- Solve

f(-1)=81+3e+0.7  

f(-1)=81.7+3e  

Value of e is a Euler number e=2.718

f(-1)=81.7+3(2.718)  

f(-1)=81.7+8.154  

f(-1)= 89.854

Round to nearest hundredth f(-1)=89.85

horrorfan [7]3 years ago
6 0
F(-1)=81+3e-.7(-1)

enter into scientific/ graphing calculator
f(-1)=89.85
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