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bulgar [2K]
2 years ago
12

Factorise x^2-4 in maths

Mathematics
2 answers:
insens350 [35]2 years ago
6 0
The person above me is correct.
Nataliya [291]2 years ago
5 0

Answer:

(x-2)(x+2)

Step-by-step explanation:

use the difference of squares

x²-4 = x²-2² = (x-2)(x+2)

You might be interested in
Justin recently drove to visit his parents who live 300 miles away. On his way there his average speed was 11 miles per hour fas
Lynna [10]

Answer:

x=1

Step-by-step explanation:

5 0
2 years ago
Given that an adult likes soccer, what is the probability the adult is aged 18–30? 8.1% 18.1% 24.5% 44.4%
dsp73

The probability that an adult likes soccer is aged between  18–30 will be 44.4%.

We have an adult who likes soccer.

We have to determine the probability the adult is aged 18–30.

<h3>What is Probability?</h3>

The formula to calculate the probability of occurrence of an event 'A' can be written as -  

P(A)  =  \frac{n(A)}{n(S)}

where -

n(A) = Number of outcomes favorable to event A.

n(S) = Total number of outcomes.

According to question, we have an adult likes soccer.

The answer to this question is based on the hypothesis that the adults between 18 - 30 are highly energetic. To be more precisely - the adults in the range 18 - 24 and 24 - 30 are highly energetic and full of stamina. Above the age 30, the number of adults who like soccer will start to decrease and will hit nearly zero between the age range of 55 - 65 as the adults in this age group found it very difficult to even walk.

Mathematically -

The probability of an event A = an adult likes soccer is aged between  18–30 will be the highest value among the ones mentioned in options.

Hence, the probability that an adult likes soccer is aged between  18–30 will be 44.4%.

To solve more questions on Probability, visit the link below -

brainly.com/question/24028840

#SPJ1

4 0
1 year ago
today ryan burned 1002.9 calories while exercising, yesterday, he burned 399 calories. how many more calories did ryan today tha
iVinArrow [24]
He burned 603.9 more calores today than yesterday
8 0
2 years ago
What is the answer in fraction form?<br><br>-4/3÷9/5=?
Katarina [22]

Answer:

-20/27

Step-by-step explanation:

-4/3 ÷ 9/5

= -4/3 * 5/9

= -20/27

Hope it helps :)

7 0
2 years ago
Read 2 more answers
How to move variable from denominator to numerator?
abruzzese [7]
By changing their exponent to negative.

Ex.
\frac{1}{ {x}^{2} }  =  {x}^{ - 2}  \\  \frac{2}{y}  = 2 {y}^{ - 1}
5 0
2 years ago
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