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alisha [4.7K]
3 years ago
9

What is 23.7 minus 11.82

Mathematics
2 answers:
larisa86 [58]3 years ago
4 0

Answer:

11.88

Step-by-step explanation:

Fofino [41]3 years ago
4 0
11.88 is the correct answer
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If the current in a circuit is 2 +j2 amps and the resistance is 3-j2 ohms, what is the voltage
victus00 [196]

Answer:

The voltage is 10 + 2j volts.

Step-by-step explanation:

Ohm's first law:

By Ohm's first law, the voltage is the multiplication of the current by the resistance, that is:

V = R*i

The voltage is measured in Volts, the current in amps and the resistance in ohms.

In this question:

Both the current and the resistance have complex parts. We have to know that:

j^{2} = -1

We have that:

R = 3 - 2j, i = 2 + 2j

Then

V = R*i

V = (3 - 2j)*(2 + 2j)

V = 6 + 6j - 4j - 4j^{2}

V = 6 + 2j - 4(-1)

V = 10 + 2j

The voltage is 10 + 2j volts.

4 0
3 years ago
What does E mean in pre-algebra
xz_007 [3.2K]
Without context, I can only assume that<em> e</em> is a variable, which means that it is an unknown number. Any letter can be a variable, and you solve for that variable by isolating it on one side of the equation. Example: e = 12
6 0
3 years ago
Find the perimeter of a square of sides 10.5cm​
astraxan [27]

Answer:

42 cm

Step-by-step explanation:

A square has 4 equal sides. To find the perimeter, add all side lengths together.

1. Set up the equation and solve

10.5 + 10.5 + 10.5 + 10.5 = 42

6 0
3 years ago
Read 2 more answers
I tried, but can't get any further
san4es73 [151]

The next step would be to recognize your expression as a difference of squares:

64z^2-1=(8z)^2-1^2

We have a neat rule for factorization of a difference of squares:

a^2-b^2=(a-b)(a+b)

So you would have

64z^2-1=(8z-1)(8z+1)

8 0
3 years ago
2+3 plz what is the answer ​
Svetlanka [38]
Uhh 5... that is a easy question
7 0
2 years ago
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