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SVETLANKA909090 [29]
3 years ago
9

Factorise x squared + x - 12

Mathematics
2 answers:
Anon25 [30]3 years ago
6 0

Answer:

(x + 4)(x - 3)

Step-by-step explanation:

Given

x² + x - 12

Consider the factors of the constant term (- 12) which sum to give the coefficient of the x- term (+ 1)

The factors are + 4 and - 3 , since

4 × - 3 = - 12 and 4 - 3 = + 1 , then

x² + x - 12 = (x + 4)(x - 3) ← in factored form

Marrrta [24]3 years ago
4 0

Answer:

(x+4)(x-3)

Step-by-step explanation:

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Solve for x. Show the equation you used and your work.
nasty-shy [4]
Here, You need to apply "Proportionality Theorem"
According to this theorem, the ratio of components of a leg would be equal to the ratio of corresponding components of another leg.

In mathematical form, 
AB/BD = AC/CD

Substitute their values, 
36/24 = x/18
2/3 = x/18
x = 18*3 / 2
x = 54 / 2
x = 27

In short, Your Answer would be 27

Hope this helps!
5 0
4 years ago
WILL GIVE BRAINLIST SO PLZ HELP
DochEvi [55]

Hello!

D Would be your answer! Because At Midnight, the temperature was -8*f. At noon, 23*F, so

|-8-23| |-3||= 31  There you go! May I have Brainliest?

4 0
4 years ago
Could someone help me please.
8_murik_8 [283]

Answer:

D

Step-by-step explanation:

The expression is equal to 1/300

D is the only other one equal to 1/300

7 0
2 years ago
If the area of a square is 169, what is the length of its side
Svet_ta [14]
--------------------
If the area of a square is 169, what is the length of its side?

13 = sqrt169
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4 0
3 years ago
#23-6: The pool concession stand made $5,800 in June and $6,300 in July. What is the percent of increase in sales? Round the ans
katrin [286]

Answer:

8.6%

Step-by-step explanation:

To find the percent change, you will need to compute the positive difference and then divide the difference by the original (the older amount).

So the positive difference will be obtain by doing larger minus smaller:

 6300

- 5800

-----------

   500

The older amount was 5800.

So 500/5800 is the answer as a un-reduced fraction.

I'm going to reduce it by dividing top and bottom by 100:

500/5800  = 5/58

5/58 is the answer as a reduced fraction.

5 divided by 58 gives=0.086206897  in the calculator .

Approximately 0.0862 is the answer as a decimal.

To convert this to a percentage, multiply it by a 100:

8.62%

Rounded to the nearest tenths is 8.6%

-------------

So 5800+5800(.0862) should be pretty close to 6300 (not exactly though since we rounded).

5800+5800(.0862)=6299.96 using the calculator.

8 0
3 years ago
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