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quester [9]
3 years ago
5

What’s the non-permissible value for x^2-x-2

Mathematics
1 answer:
Agata [3.3K]3 years ago
5 0

Answer:

x = -1 and x = 2 are non-permissible

Step-by-step explanation:

for rational equations, the denominator can't equal zero, so find the zeroes of the equation, those will be the non-permissible numbers...

take the denominator and set it equal to zero, then solve...

x² - x - 2 = 0

(x - 2)(x + 1) = 0

so

x - 2 = 0

    x = 2

and

x + 1 = 0

   x = -1

Either of these values make the denominator equal zero, so they are not part of the domain of the function (non-permissible numbers)

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I have 5 digits. My 4s are worth 4 (10000) and 4 ×10. My 3 is worth 3. The other is worth one tenth as much. My other digit is a
likoan [24]
The number is 40243 :)
hope this helps
4 0
3 years ago
PLEASE HELP ASAP!!! I NEED CORRECT ANSWERS ONLY PLEASE!!!
aleksley [76]

The length of PR is 4.4 units.

Explanation:

It is given that the length of the hypotenuse is 10 units.

Also, the angle of R is 64°

To find the length of PR, we shall use the cosine formula,

\cos \theta=\frac{a d j}{h y p}

Here,  \theta=64, adj = PR and hyp = 10

Substituting these values in the formula, we get,

\cos 64=\frac{P R}{10}

Multiplying both sides by 10, we get,

10*\cos 64={P R}

Substituting the value for cos 64, we get,

10*0.438={P R}

Multiplying, we have,

4.38=PR

Rounding off, we get,

PR=4.4

Thus, the length of PR is 4.4 units.

8 0
4 years ago
How do I answer this?
Agata [3.3K]

Answer:

2k³ is the GCF.

Step-by-step explanation:

GCF of 10k^{3} ,6k^{3}

Finding the factors:

=10k³[Factoring 10k³]

=2×5×k×k×k

=6k³[Factoring 6k³]

=2×3×k×k×k

Common factors in 10k³ and 6k³.

=2×k³

=2k³

8 0
2 years ago
Read 2 more answers
What is -12 divided by 2/3? A. –36 B. –24 C. –18 D. –8
vazorg [7]

What is -12 divided by 2/3?


your answer is -18

5 0
3 years ago
A roller coaster’s height is given by the equation h = –.025t2 + 4t + 50, where t represents the time in seconds. How long will
larisa [96]

The time it will take the roller coaster to reach the ground is 171.65 seconds

<h3>Function and values</h3>

Given the roller coaster’s height given by the following parameters

h = –0.025t² + 4t + 50

On the ground level, the height will be zero. Substitute h = 0 and determine the value of t

–0.025t² + 4t + 50 = 0

0.025t² - 4t - 50 = 0

Factorize

On factorizing the time it will take the roller coaster to reach the ground is 171.65 seconds

Learn more on functions here: brainly.com/question/10439235

#SPJ1

8 0
2 years ago
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