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2 years ago

Good at math & need points? help!!

Mathematics

1 answer:

Greeley [361]2 years ago

5 0

Answer:

Step-by-step explanation:

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The total source voltage in the circuit is 6-3i V. What is the voltage at the middle source

Bezzdna [24]

Answer:

<em>The voltage at the middle source is</em> $(2-4\mathbf{i})\ V$

Step-by-step explanation:

<u>Voltage Sources in Series</u>

When two or more voltage sources are connected in series, the total voltage is the sum of the individual voltages of each source.

The figure shown has three voltage sources of values:

$2 + 6\mathbf{i}$

$a + b\mathbf{i}$

$2 - 5\mathbf{i}$

The sum of these voltages is:

$V_t=4+a+(6+b-5)\mathbf{i}$

Operating:

$V_t=4+a+(1+b)\mathbf{i}$

We know the total voltage is $6-3\mathbf{i}$ , thus:

$4+a+(1+b)\mathbf{i}=6-3\mathbf{i}$

Equating the real parts and the imaginary parts independently:

4+a=6

1+b=-3

Solving each equation:

a = 2

b = -4

The voltage at the middle source is $(2-4\mathbf{i})\ V$

5 0

2 years ago

Phillip opened a savings account with an annual interest rate of 8% and an initial deposit of $3500. If his interest is compound

Levart [38]

The formula is A=p(1 + (r/n))^(nt)
A = 3500(1 + (.08/4))^(4*2)
A = 3500 ( 1.02)^8
A = $ 4100.81

3 0

2 years ago

Read 2 more answers

a book charges a member fee of $15.Each book costs $2 to buy .Write an expression that represents the amount a customer spends f

AleksandrR [38]

2b+15
2 dollars for each book so you multiply it by the number of books and add 15 because it is a one time fee.

4 0

3 years ago

6. Ed bought a coat that usually costs $150. He purchased the coat at a 20% DISCOUNT. How much did Ed

SVEN [57.7K]

Answer:

6. c. 120

7. $6.45

Step-by-step explanation:

1. 150 x 0.20 = 30

2. 150- 30= 120

1. 43 x 0.15= 6.45

5 0

2 years ago

What is the quotient?

ivann1987 [24]

Answer:

In arithmetic, a quotient is the quantity produced by the division of two numbers

4 0

3 years ago