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3 years ago

Let v = 3i + 2j and w = 2i + 3j. Sketch v, w, v + w, 2w, and v − w in the plane

Mathematics

1 answer:

Nimfa-mama [501]3 years ago

5 0

Answer:

Step-by-step explanation:

In the argand plane for plotting points of complex numbers we take i coefficient as x and j coefficient as y and plot as we plot regular points on the graph.

v=3i+2j

Point is (3,2) A

w =2i+3j , Point is (2,3) B

v+w = 5i +5j Point is (5,5) C

2w = 4i+6j , point is (4,6)

v-w = i-j Point (1,-1)

Please find enclosed the above points plotted on the graph.

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Graph -5x-8y=40

Triss [41]

Answer:

Please, see the attached file.

Thanks.

Step-by-step explanation:

-5x-8y=40

This is a linear equation, and its graph is a right line, we only need two points, because by two points only goes trough only a right line:

1) For x=0→ -5(0)-8y=40

0-8y=40

-8y=40

Dividing both sides of the equation by -8:

-8y/(-8)=40/(-8)

y=-5

Point=(x,y)→Point=(0,-5)

2) For y=0→ -5x-8(0)=40

-5x-0=40

-5x=40

Dividing both sides of the equation by -5:

-5x/(-5)=40/(-5)

x=-8

Point=(x,y)→Point=(-8,0)

With these two points (0,-5) and (-8,0) we can draw the right line.

8 0

4 years ago

IDENTIFY LIKE TERMS<br> 5y + 15 - 80 - 10y

dexar [7]

Answer:

5y and -10y

15 and -80

-5y -65

3 0

3 years ago

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a shopkeeper sold a pen at loss of 20%. if he had sold it for rs 10 more, he would have gain 5%.find the cost price of pen

AlexFokin [52]

Rs 200
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100%=200

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3 years ago

If f(x)= 4^-8 and g(x)= 5x+6, find (f-g)(x)

Sveta_85 [38]

$f(x)=4^x-8,\ g(x)=5x+6\\\\(f-g)(x)=f(x)-g(x)=(4^x-8)-(5x+6)=4^x-8-5x-6=4^x-5x-14$

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3 years ago

1. A car travels 40 miles west then goes 30 miles north. How far is the car from its starting point?

Setler [38]

10 miles in since they turned around, but if your adding then its 70 miles

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3 years ago

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