3 years ago

Perform the operation and get

Mathematics

1 answer:

Alexandra [31]3 years ago

8 0

Answer:

Step-by-step explanation:

(5-2i) ( 5+2i) = (5^2) - ((2i)^2) = 25 - 4i^2

= 25 - 4(-1) = 25 +4 = 29 + 0i

You might be interested in

I'd like some help, thanks!

Otrada [13]

It is likely D I am not positive

7 0

3 years ago

Read 2 more answers

What Is 1 - 1/3? <br> Fraction Skills

ANEK [815]

Answer:

2/3

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

If a cylinder has a height of 15cm and 6cm radius.And Jenny has a 15litre bag of compost.How many flowerpots can she fill comple

Veronika [31]

I hope this helps you

volume of cylinder =pi.r^2.h

volume =3,14×6^2×15

volume = 1695,6

1695,6÷15=113,04

3 0

3 years ago

What is the value of the expression?

Lady bird [3.3K]

Answer:

690

Step-by-step explanation:

(323+1715)-(1135+213)

(2038)-(1348)

=690

5 0

3 years ago

Blake and Ned work for home remodeling business they are putting the final touches on a home they renovated. working alone Blake

stiks02 [169]

Answer:

3.6 hours

Step-by-step explanation:

Blake can do work in hours = 9

Blake can do a part of work in 1 hour = $\frac{1}{9}$

Ned can paint the same room in six hours.

Ned can do a part of work in 1 hour = $\frac{1}{6}$

They can do a part of work together in 1 hour = $\frac{1}{9}+\frac{1}{6}$

= $\frac{5}{18}$

Now they can do $\frac{5}{18}$ part of work in hour = 1

So, they can do whole work in hours = $\frac{1}{\frac{5}{18}}$

= $3.6$

Hence it will take 3.6 hours to paint the room if they work together.

6 0

3 years ago