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I am Lyosha [343]
3 years ago
9

Simplify. x-2/(x^2+4x-12)

Mathematics
1 answer:
balandron [24]3 years ago
5 0
Simplifying the above expression we shall proceed as follows:
<span>x-2/(x^2+4x-12)
factoring out the denominator we get:
</span>x^2+4x-12
=x^2-2x+6x-12
=x(x-2)+6(x-2)
=(x+6)(x-2)
thus our expression will be:
(x-2)/[(x+6)(x-2)]
simplifying the above we get:
1/(x+6)

Answer: 1/(x+6)
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2:2x11(6+5)+1 HEELLLLLLLLPPPP
mariarad [96]

Answer:

2.2×11×11+1

2.2×121+1

266.2+1

267.2

5 0
3 years ago
Determine whether each number is rational or irrational.
kirill115 [55]

Answer:

where is the question.

So basically rational numbers are numbers with decimals that are not random

ex) 3.66666666,   4.040404040, 3.5645645645646

the decimals are at a fixed order

Irrational is random decimals that makes it look weird

ex)3.141592643,  5. 782759453,   8.825928342

hope that answers your question

Step-by-step explanation:

5 0
3 years ago
Fabio is designing a flashlight that uses a parabolic reflecting mirror and a light source. The shape of the mirror can be model
Tomtit [17]

Answer:

F(2, 11/2)

Step-by-step explanation:

The expression:

(x-2)² = 10(y - 3)

can be rewritten in the vertex form as follows:

(x-2)² = 10y - 30

(x-2)² + 30 = 10y

1/10(x-2)² + 3 = y

General vertex form is:

y = a(x-h)² + k

then, the vertex is locate at (h, k). In this case the vertes is (2, 3), and <em>a </em>= 1/10

The focus of a parabola is located ar F(h, k+p), where <em>p</em> = 1/(4a). Replacing into these equations:

p = 1/(4*1/10) = 5/2

F(2, 3+5/2) = F(2, 11/2)

6 0
3 years ago
Read 2 more answers
Compare contrast multiplication for 1 and 0 and the division for 1 and 0
mafiozo [28]
Rules for dividing by 0 

Rule 1.
0 divided by any number is 0. 

Rule 2. 
You cannot divide by 0. 

Rules for dividing by 1. 

Rule 1. 

any number (except 0) when divided by itself equals 1.

Rule 2. 

any number divided by 1 equals that number. 






8 0
3 years ago
Read 2 more answers
Help me with this please​
Mice21 [21]
Answer : 1.05 . Hope I helped have a good day :)
4 0
2 years ago
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