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neonofarm [45]
3 years ago
5

Someone please help me with this question I need it ASAP

Mathematics
1 answer:
ZanzabumX [31]3 years ago
6 0

Your question has been heard loud and clear.

First one (x+2i)(x-2i) = x^2+4

Second one (x-2+2i)(x-2-2i) = x^2-4x+8

Third one (x+1+i)(x+1-i) = x^2+2x+2

Thank you

Edit: Sorry for taking 15 minutes I was calculating lol

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T(1) = 9<br> t(n + 1) = 2 • t(n)
timurjin [86]

Answer:

t(1)3 = 914

t(s + 1) = 2 • t(s)

8 0
3 years ago
Prove that the figure is a parallelogram. If so, classify the parallelogram. Be specific and justify your answer.
sesenic [268]

Answer:

Step-by-step explanation:

If it is a parallelogram the opposite sides will a have the same slope.

Using the diagram  we see from the coordinates of A and B:

Slope of AB = (5 - -1)/(-1 - -5)

= 6/4

= 3/2.

In the same way

slope of CD = (2 - -4) / (1 - -3)

= 3/2.

So AB and  CD can be shown to be parallel.

Similarly the lines BC and AD are parallel.

So the figure is a parallelogram

Finding the perimeter (counting the units between the points):

Perimeter = 2AB + 2BC

By Pythagoras:

AB =   sqrt (6^2 + 4^2) = sqrt 52

BC = sqrt (3^2 + 2^2) = sqrt 13

So Perimeter = 2sqrt52 + 2sqrt13

= 4sqrt13 + 2 sqrt13

= 6sqrt13

or 21.63 unit^2 to 2 decimal places.

Area = sqrt52 * perpendicular distance between the lines AB and CD.

8 0
3 years ago
I have to estimate 9,105-4031 and im soo confused! Help me plss
balandron [24]

9105-4031= 5074

Step-by-step explanation:

please mark me as branliest

7 0
3 years ago
Read 2 more answers
Ivan and Tanya share £150 in the ratio 4: 1<br> Work out how much more Ivan gets compared to Tanya.
Dennis_Churaev [7]
Ivan gets £112.5(0) more than Tanya
7 0
2 years ago
Together, a house and the lot it is on costs $40,000. If the house costs seven times as much as the lot, how much does the lot c
padilas [110]

The lot costs 5000 dollars.

<u>Step-by-step explanation:</u>

The cost of a House and the lot = $40,000.

Let us assume the cost of lot as 'x'

Given that, The cost of the house is 7 times as much as the lot.

Therefore, The cost of the house= 7x

The cost of both the house and the lot= x + 7x

$40,000 = x + 7x

40,000 = 8x

x = 40,000/8

x = 5,000

The lot costs $5000.

4 0
3 years ago
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