Answer:
a. 28.26 square in.
Step-by-step explanation:
diameter= 6 inches
radius= 3 inches
Area of circle:
=πr²
=3.14×3²
=3.14×9
=28.26 inches
Hello,
as 4.5+8.75+9.5+9+4.25=36 and 36*9.78=352.08
King'Arthur must pay him $352.08
Answer:
1. 8.3%
Step-by-step explanation:
Relative error = absolute error/expected measurement
The expected measurement is given as 6 ft.
Now, the absolute error is usually equal to half of a unit of the measure.
This means the absolute error in this case is ½ × 1 = 0.5 ft
Thus, the exact measurement will be;
6 ± 0.5
Thus;
Relative error = 0.5/6
Relative error = 0.083
Expressing it in percentage gives 8.3%
The value of the voltage is 18 - j volts if the current in a circuit is 3 + j2 amps and the resistance is 4 - j3 ohms option (c) is correct.
<h3>What is a complex number?</h3>
It is defined as the number which can be written as x+iy where x is the real number or real part of the complex number and y is the imaginary part of the complex number and i is the iota which is nothing but a square root of -1.
We have:
The current in a circuit is 3 + j2 amps and the resistance is 4 - j3 ohms.
As we know,
V = IR
V = (3 + j2)(4 - j3)

j² = -1 (complex part)
After simplification:
V = 18 - j volts
Thus, the value of the voltage is 18 - j volts if the current in a circuit is 3 + j2 amps and the resistance is 4 - j3 ohms option (c) is correct.
Learn more about the complex number here:
brainly.com/question/10251853
#SPJ1
Answer:
9/10
Step-by-step explanation:
Very simple, Keep It, Change It, Flip it
Do 3/4 X 6/5 and you should get your answer