2 years ago

What is the point of intersection when the system of equations below is graphed on a coordinate plane? X-y=1 y-x=1

1 answer:

6 0

Lets reorder the equations

y = x - 1 (1)
y = x +1 (2)

Since both lines have the same slope (m = 1), then this is an inconsistent system with NO solution

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Prove the theorem (AB )^T= B^T. A^T

Lisa [10]

Answer:

$(AB)^T = B^T.A^T (Proved)$

Step-by-step explanation:

Given (AB )^T= B^T. A^T;

To prove this expression, we need to apply multiplication law, power law and division law of indices respectively, as shown below.

$(AB)^T = B^T.A^T\\\\Start, from \ Right \ hand \ side\\\\B^T.A^T = \frac{B^T.A^T}{A^T}.\frac{B^T.A^T}{B^T} (multiply \ through) \\\\ = \frac{A^{2T}.B^{2T}}{A^T.B^T} \\\\=\frac{(AB)^{2T}}{(AB)^T} \ \ (factor \ out \ the power)\\\\= (AB)^{2T-T} \ (apply \ division \ law \ of \ indices; \ \frac{x^a}{x^b} = x^{a-b})\\\\= (AB)^T \ (Proved)$

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2 years ago

In the diagram, rectangle ABCD is spilt in half by AC. What is the value of tan x?

LenaWriter [7]

Answer:

Step-by-step explanation:

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1 year ago

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Write two decimals that are equivalent to 0.9

Maurinko [17]

0.90 and I think .9 is another I'm not sure but I tried

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2 years ago

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You found an old vase in the shape of a cylinder. It has a radius of 6.5 centimeters and a height of 16 centimeters. What is the

Strike441 [17]

Answer:

3.14*6.5^2*16=

42.25*16=2122.64 or 2122.6

Step-by-step explanation:

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Austin is on his way home in his car. His drive is 30 miles long. He has finished five-sixths of the drive so far. How far has h

drek231 [11]

30 miles is two-thirds of x (where x is the total distance)

30 = (2/3)*x 

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90 = 2x

90/2 = x

45 = x

x = 45

The total length of his drive is 45 miles

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2 years ago