0
How would you solve -b plus sq root b squared -4ac divided by 2a if a equals 2.14 b equals -5.2 and c equals 1.781?
Wiki User
∙ 14y ago
Use Windows Calculator!
5.2 +/- sqrt(27.04 - 15.24536) all over 4.28
= 5.2 +/-3.434 all over 4.28
= 8.634/4.28 or 1.766/4.28
= 2.017 or 0.41
I've checked 2.14x2 - 5.2x + 1.781 = 0 with x = 2.017, I'll leave you to confirm 0.41!
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
How would you solve 'x squared equals 25x'?
X (x - 25) So X = 0 Or X = +25
How would you solve y squared equals 11y?
y*y = 11y Divide both sides by y: y = 11
What property of equality would you use to solve y divided by 7 equals 28?
Multiply both sides by 7.
What are units squared divided by units?
Imagine 4squared (16) divided by 4 (4). Therefore units squared divided by units would be units.
What does speed equals divided by time?
Speed is measured in units of (Distance) over (Time). So Speed divided by Time would be equivalent to (Distance) over (Time squared), which is the unit of measurement for Acceleration.
What number equals 3 squared?
do u mean solve 3 squared? if so it = 3x3x3 that's how u work it out so the answer would be 27. hope this helps :)
How would you solve 'x squared equals 25x'?
X (x - 25) So X = 0 Or X = +25
How would you solve y squared equals 11y?
y*y = 11y Divide both sides by y: y = 11
How do you solve X squared minus four for x equals 3?
Your Problem: X - 4 = ?Current Problem: 3 [squared] - 4 = ?How: When a numbered is squared, it means you multiply it against itself. So, 3 squared equals 3x3.3x3 = 9So, you would then take 9 and minus it by 4, which would than equal 5.Answer:3 [squared] - 4 = 5or9 - 4 = 5
What property of equality would you use to solve y divided by 7 equals 28?
Multiply both sides by 7.
Solve the equaton 7 x equals 42?
if the equation was 7x = 42. The answer would be x = 6
How would you solve x squared minus two x minus three equals zero?
That factors to (x + 1)(x - 3) x = -1, 3
What are units squared divided by units?
Imagine 4squared (16) divided by 4 (4). Therefore units squared divided by units would be units.
How would you solve this equation 2 plus 2 divided by x divided by 2 plus 2 divided by x squared?
2+2/x/2+2/x^2=2+1/x+2/x^2
What does speed equals divided by time?
Speed is measured in units of (Distance) over (Time). So Speed divided by Time would be equivalent to (Distance) over (Time squared), which is the unit of measurement for Acceleration.
If X divided by y equals 420 what is x and y?
You would need one more equation relation x and y to solve for both of them.
How do you find the unknown radius of a circle?
What you do is, diameter divided by two, then multiply the diamter already divided in half multiplying by itself, then you would times the squared radius by pie(3.14) Example; diameter is 6 divided in half equals 2 because 6 divided by 3 equals two then spuare it which will be 4, then times it by pie or 3.14 :):):):):):):):):):):):):):):):)
