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How do you use the completing the square method to solve a quadratic equation?

First you need to get the quadratic equation in completed square form. This looks like: (x+p)^2 + q To put an expression in completed square form you can use this formula: x^2 + 2bx + c = (x+b)^2 - b^2 + c O...
CP
Answered by Caroline P. • Maths tutor
4382 Views

Solve 5x - 2 > 3x + 11

When solving inequalities the first step is to put the unknown, in this case x, on the same side of the inequality sign. Remember when you move values to the other side of a sign they change their charge as ...
SR
Answered by Sarina R. • Maths tutor
6490 Views

You poster saying: "Festa del paese sabato 27 marzo". On which day is the celebration taking place?

Saturday (Sabato)
MM
Answered by Marcella M. • Italian tutor
3114 Views

The time, T seconds, it takes a water heater to boil a constant mass of water is inversely proportional to the power, P watts, of the water heater. When P is 300, T is 20. What is T when P is 400?

This is a question regarding inverse proportion. This is when one value increases as the other decreases. For this question, the equation can be written as: T ∝ 1/P The directly proportional sign (∝) can be ...
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Answered by Scott A. • Maths tutor
12669 Views

How does vaccination provide immunity?

Pathogens are microorganisms that can cause disease. If they enter the body, they can start an immune response. On their surface, they have antigens, which are substances that start that immune response. Ant...
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Answered by Lana F. • Biology tutor
3346 Views