Which method is the most efficient method to use to solve x^2+4x+3=0
Answers
Answer:
Factoring
Step-by-step explanation:
To solve the equation , you must apply the factoring method.
You must find two real numbers b and c such that:
and
Then the expression:
You can prove that:
So
or
or
X will be -1 and -3!
Related Questions
For keeping business records every three months of a year Is called a quarter.How many months are equal to three quarters of a year? Explain your answer.
Plz help me quick!!!!!!!!!!!!!!!!!!!!!!!!!!!!
How many cube roots does 0.216 have explain
How do you write 4,305,012 un expanded notation?
Answers
No, any one of the 10 mayflies in the group live for 1 full day.
What is the absolute mean deviation?
The mean absolute deviation (MAD) is a measure of variability that indicates the average distance between observations and their mean.
The life spans of 10 adult mayflies have a mean of 4 hours and a MAD of 2 hours.
Fill in the table below with possible values for the life spans. You can use the same values more than once.
Mean = 4 hours.
Mean absolute deviation = 2 hours.
Assume that the life spans of each fish is 4 hours;
Then mean = 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4/10
= 40/10
= 4 hours.
No fish can live for a full day.
Hence, No, any one of the 10 mayflies in the group live for 1 full day.
Learn more about mean deviation here;
#SPJ2
Step-by-step answer:
Assuming MAD stands for mean absolute deviation (2 hours), then the total absolute deviation from the mean (4 hours) is 10*2=20 hours.
If one of the flies live for 1 full day, the absolute deviation is 24-4=20 hours. This automatically requires the other flies live exactly 4 hours to have the MAD equal to 20 hours.
However, the above arrangement does not give a mean of 4 hours, but a mean of (24+9*4)/10=6 hours. This means that it is not possible to have a fly living for a full day.
Answers
Rate of reduction : 85%
Remaining volume: 120 ml.
This means that 120 ml is equivalent to 15% of the original volume.
100% - 85% = 15%
120 ml ÷ 15% = 800 ml.
There was 800 ml of water before it was reduced.
800 ml * 85% = 680 ml ⇒ volume reduced
800 ml - 680 ml = 120 ml ⇒ volume left after reduction.
Answers
Answers
Answers
Number he called = 185 / 0.925
= 200
Answers
Answer:
Step-by-step explanation:
Let the Price of TV set be x.
The price of computer = x - 5200
x + x - 5200 = 105200
2x = 105200 + 5200
2x = 110400
x = 110400/2
x = Rs. 55200
Price of TV set = Rs. 55200
Price of computer set = 55200 - 5200 = Rs. 50000