3 years ago

Divide the following complex numbers: (4-i)/(3+4i) ??

Mathematics

1 answer:

frez [133]3 years ago

3 0

The answer is $\frac{8}{25} -i\frac{19}{25}$

Steps: (in the attachment)↓↓↓↓↓

Hope this helps!!

You might be interested in

the coordinates of the vertices of a rectangle are ( -2, 3) , (4, 3 ) , ( 4, -4), and ( -2, -4 ). what are the dimensions of the

Nookie1986 [14]

The answer would be 6 x 7

8 0

3 years ago

How do you factor 7b^2-63b+140?

LuckyWell [14K]

You can simplify the entire equation by dividing it all by 7, resulting in 7(b^2-6b+20).

Here, you can factor as you normally would. Your X values would have to be found using the quadratic formula.

8 0

3 years ago

Assign every student at Coggins Middle School a number then use a random number generator to select the numbers.

sattari [20]

This would be a simple random sample.

4 0

3 years ago

The amount of carbon-14 in an object is given by y = ae– 0.00012t where a is the initial amount of carbon and t is the age in ye

Reptile [31]

Answer:

The approximate age of the bone is approximately 11552 years.

Step-by-step explanation:

The current proportion of carbon-14 with respect to its original amount is defined by following formula:

$\frac{y}{a} = e^{-0.00012\cdot t}$ (1)

Where:

$y$ - Current amount of carbon-14, no unit.

$a$ - Initial amount of carbon-14, no unit.

$t$ - Time, in years.

If we know that $\frac{y}{a} = 0.25$ , then the approximate age of the bone is:

$t = -8333.333\cdot \ln \frac{y}{a}$

$t\approx 11552.453\,yr$

The approximate age of the bone is approximately 11552 years.

4 0

3 years ago

Brad is putting up a 10 foot diameter circular flower garden in his yard. He will put plastic edging along the flowerbed. How ma

klio [65]

Answer:

10π feet, or about 31.42 feet

Step-by-step explanation:

Diameter = 2 times radius, so the radius is 5 feet.

The question is asking us for the circumference - the distance around the circle. Plug our radius into the formula.

C = 2πr

C = 2π(5)

C = 10π feet = about 31.42 feet

6 0

3 years ago

Read 2 more answers