Use your calculator to evaluate e^-3. round to three decimal places.

0.050

Step-by-step explanation:

The "e" function in mathematics is the exponent of a number. As such e^-3 can best be interpreted as the exponent of -3.

Using a calculator,

e^-3 = 0.0497870684

To 3 decimal places, first round off to 4 decimal places

= 0.0497

To round to 3 decimal places, consider the number in the 4th decimal place. If more than 5, add 1 to the number in the 3rd decimal place other wise added 0

= 0.050

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-13

step-by-step explanation:

f(x)=2x-5 for f(-4)

f(-4)   means let x=-4

f(-4) = 2(-4) -5

f(-4) =-8-5

      = -13