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3 years ago

8

Find the product of (-4+11i)(-5-8i)

1 answer:

Ludmilka [50]3 years ago

7 0

20+32i-55i+88
108-23i

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Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre

Inessa05 [86]

Answer:

$3m^3-7m^2n+3mn^2-n^3$

Step-by-step explanation:

$(5m^3 + 3mn^2) + (-7m^2n + mn^2 - n^3) - (mn^2 + 2m^3)\\Solving:\\5m^3 + 3mn^2 -7m^2n + mn^2 - n^3 - mn^2 - 2m^3\\Adding\,\,like\,\,terms\,\,\\5m^3 -2m^3+ 3mn^2 -mn^2+mn^2-7m^2n-n^3\\3m^3 +3mn^2-7m^2n-n^3\\Arranging\,\,in\,\,desecnding\,\,order\,\,in\,\,power\,\,of\,\,m\\3m^3-7m^2n+3mn^2-n^3$

3 0

3 years ago

Help, i know the answer but i don’t know how to do the work

Diano4ka-milaya [45]

Answer:

C

Step-by-step explanation:

Using the rule of radicals

$\sqrt{a}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$

Simplifying each radical before combining them.

$\sqrt{45t}$

= $\sqrt{9(5t)}$

= $\sqrt{9}$ × $\sqrt{5t}$ = 3 $\sqrt{5t}$

-----------------------------------------------------------------------------

$\sqrt{125t}$

= $\sqrt{25(5t)}$

= $\sqrt{25}$ × $\sqrt{5t}$ = 5 $\sqrt{5t}$

---------------------------------------------------------------------------

Hence

2(3 $\sqrt{5t}$ ) - 3(5 $\sqrt{5t}$

= 6 $\sqrt{5t}$ - 15 $\sqrt{5t}$

= - 9 $\sqrt{5t}$ → C

7 0

4 years ago

Pls help im still exaushted

Mice21 [21]

I think it 72 if it is divison

4 0

4 years ago

A dog ran along a fence 10 times. The fence is 5 feet 3 inches long. How far did the dog travel? (12 inches = 1 foot

shusha [124]

5 feet and 3 inches, 1 foot=12 inches, 12×5=60+3=63×5=315. so your answer is 315

4 0

3 years ago

What is 2 plus 2. This is a test to see how the app works

anzhelika [568]

The answer to your question is 4! Welcome to the site :)

3 0

4 years ago

Read 2 more answers