Answer:
hello :
Step-by-step explanation:
x(x+3)(x+3)=0 means : x=0 or x+3=0 or x+3=0
x=0 or x=-3 or x=3
Answer:
0.1
Step-by-step explanation:
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:
volume of cuboid=l×w×h
volume of cuboid=4×5×3=60cm³
We are given " The country recreation department cleared a 3/4 mile long walking trail in Washington Park."
Therefore total distance = 3/4 miles.
"There will be a small sign every 1/12 mile along the trail, including at the beginning and end of the trail. "
Distance of small sign = 1/12 mile.
We need to find the number of signs in 3/4 miles each of 1/12 miles.
<em>In order to find the number of signs, we need to divide total distance by distance of a small sign.</em>
3/4 ÷ 1/12
= 3/4 × 12/1 = 3 × 3
= 9 signs.
<h3>Therefore, 9 signs are needed.</h3>