All categories

4 years ago

What is the difference of (5 + 3i) and (2 + 9i)?

Mathematics

1 answer:

ehidna [41]4 years ago

7 0

Answer:

3+12i

Step-by-step explanation:

The difference of 5+3i and 2 + 1999 can be calculated as follows

= 5+3i - 2+9i

Collect the like terms

= 5-2+3i+9i

= 3+12i

Hence the difference of 5+3i and 2+9i is 3+12i

You might be interested in

This symbol > means that one number is _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ or equal to another number.

stellarik [79]

Answer:

gratr

Step-by-step explanation:

4 0

3 years ago

Can someone please help me answer this?

Setler79 [48]

Answer:

Step-by-step explanation:

If you don't understand some steps, comment it for me please.

1. Find diagonal.

d = 2r

d = 2(9)

d = 18

2. Find length of square.

each length of square = x

$x : 18 = 1 : \sqrt{2}$

$\frac{x}{18} = \frac{1}{\sqrt{2} }$

$\sqrt{2}x = 18$

$x = \frac{18}{\sqrt{2} } = 9\sqrt{2}$

3. Find area of circle and square.

Area for circle

$A = \pi r^2$

$A = \pi (9)^2$

$A = 81\pi = 254.4690...$

Area for square

$A = (length)^2$

$A = (9\sqrt{2})^2$

$A = 162$

4. Subtract area of circle to area of square.

254.4690... - 162 = 92.4690...

5. Find the shaded region.

92.4690... / 4 = 23.1172...

Rounded to the nearest hundredth = 23.12

7 0

3 years ago

Complete the square so that the left side of x2 + 8x − 3 = 0 becomes a binomial squared.

Anon25 [30]

Answer:

Hope this helps...

Step-by-step explanation:

3 0

3 years ago

What is the correct equation for the line graphed below?

dusya [7]

The First one

y = x + 1

4 0

4 years ago

Which of the following graphs represents a function?

timurjin [86]

Answer:

1st Graph

Step-by-step explanation:

A simple way to test if a relation may be taken as a function is by applying the Vertical Line Test. If a Vertical Line crosses the graph only once, then it is a function. In this question, only the first one can be considered to be a function.

Because in other words, only the first graph shows one value for x corresponding to another for y value. Not the case for the second and the third graph displaying two values for x for each y value.

4 0

3 years ago

Read 2 more answers