The value of f(3) can be calculating by putting the variable x equal to 3 , x=3 which gives:
f(3)=81+3e-0.7*3=81+3e-2.1
But there is one more unknown in the equation e. e is a constant called Euler's number, after the Swiss mathematician Leonhard Euler.
e=2.7182818284590.....
Rounding to the nearest hundredth the thousandths place is used to determine whether the hundredths place rounds up or stays the same.
Rounding the Euler's constant to the nearest hundredths gives:
e=2.72
So, f(3)=81+3*2.72-2.1=81+8.16-2.1=87.06
Answer:
a) $0.97
b) $0.16
c) $24.30
Step-by-step explanation:
$0.09 per kilowatt hour = $0.09/kWh
6h/day 30 days = 180h
a) 60W*180h = 10800 Wh = 10.8kWh
10.8kWh * $0.09/kWh = $0.97
b) P = V*I
V = 120V
I = 80mA = 80/1000 = 0.08A
P = 120*0.08 = 9.6W
9.6W*180h = 1728 Wh = 1.728kWh
1.728kWh * $0.09/kWh = $0.16
c) 1500W*180h = 270000 Wh = 270kWh
270kWh * $0.09/kWh = $24.30
48:64
3+4 = 7
112/7 = 16
16 * 3 = 48
16 * 4 = 64
Answer:
Equation: y = -4x + 32
Slope: -4
Step-by-step explanation:
Given : (-10,-8) and (-8, -16)
Slope Formula: 
Solve For Slope, Input Given Points:
Solve for y-intercept:
Input the slope into the equation y = mx + b. Plugin x and y values for the x and y variables to find b.
- y = -4x + b
- -8 = -10(4) + b
- -8 = -40 + b
- b = 32
Equation of LIne: y = -4x + 32
-Chetan K
