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4 years ago

For what values of x is rational expression below undefined x-7/x^2-7x-8

1 answer:

8 0

The values are x = 8 and x = -1.

To find the undefined values, we need to know when the denominator is zero.
To do this, we need to factor it and find the value that would make either factor equal to zero.

If factors to: (x - 8)(x + 1)

Therefore, the undefined values would be at 8 and -1.

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Matrix A = [6 -12 4 8]. What is matrix X if 1/2x=A?

Step2247 [10]

Answer:

$X = \left[\begin{array}{cccc}12&-24&8&16\end{array}\right]$

Step-by-step explanation:

A matrix is given by

$A = \left[\begin{array}{cccc}6&-12&4&8\end{array}\right]$

Now, we have to find the matrix X if $\frac{1}{2} X = A$

⇒ X = 2A

Now, multiplication of a constant with a matrix means multiplication with that constant with all the terms of the matrix.

So, $X = \left[\begin{array}{cccc}6 \times 2&-12 \times 2&4 \times 2&8 \times 2\end{array}\right]$

⇒ $X = \left[\begin{array}{cccc}12&-24&8&16\end{array}\right]$ (Answer)

4 0

4 years ago

Read 2 more answers

PLEASE can someone do A, B, D, And The Graph

Mama L [17]

answer 33

because i had abd and ur mum jk but yea

6 0

3 years ago

Brian is going camping and. is making a tent from fabric. How much fabric will he need? 6 ft. 12.5 ft. 8.5 ft.

Alona [7]

Answer and explanation:

Depending on the type and size of tent you wish to make, an average tent should consume more than 12.5ft of fabric. You would require more than 10 yards of fabric to make a small tent that an adult human being can fit in.

1 yard = 3 ft

And so you would require about 30 ft of fabric to make your tent. Therefore the options listed may not be enough fabric to make a tent

5 0

3 years ago

Triangle ABC is translated 2 units to the right

____ [38]

Answer:

Step-by-step explanation:

7 0

3 years ago

4a) The vertices of a triangle are P(-7, -4) Q(-7, -8) and R(3, -3). What are the

aniked [119]

Answer:

P' (-4 , -7)

Step-by-step explanation:

reflection over y=x, (x,y) -> (y,x)

6 0

3 years ago