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Can you give some examples of problems that require solving quadratic equations and not just finding solutions?
Quora
Here are some questions: 1) Sketch the graph of x² − 3x − 18 = 0 2) There is a right-angled triangle with hypotenuse 2x - 1, adjacent side x - 2. i) Find...
8 months ago
How to open a 3-digit lock with numbers 0 to 36
Quora
I suppose you mean a 3-number lock? If so, since you have 37 possible numbers (0 to 36) for each number position (1st, 2nd, 3rd), there are 37^3 = 50653...
8 months ago
What is the exact value of cos theta if tan theta = 3/5?
Quora
5√34 5 34. Draw the right triangle. If tanθ=35 t a n θ = 3 5 , the side opposite θ θ must have a length of 3 and the side adjacent to it must have a length...
8 months ago
What is the diagram of a power circuit using a 2-phase supply, 2 thyristors, and 3 diodes to run a motor with different ...
Quora
The circuit shown below will work for a brushed DC motor, with a separately excited shunt field. Figure 1: Symmetrical half-controlled bridge with...
3 months ago
Suggest X|x^2-3x+2|=k. What is the range of k so that the equation has a maximum number of real and distinct roots?
Quora
OP has commented that he is looking for an analytical solution. Let us try to use calculus Given equation [math]x|x^2–3x+2|= k[/math] There are two cases...
6 months ago
A rectangular garden is 30 meters long and 20 meters wide. If a 3-meter wide path is built around the garden, what is ...
Quora
Length of garden(l) = 30m Breadth of garden (b) = 20 m Hence Area of rectangular garden = l × b = 30 × 20 m² = 600 m² Now width of path = 3m Hence new...
10 months ago
What is the solution of |3x+2| <1?
Quora
To solve the inequality |3x + 2| < 1, we need to consider two cases: when the expression inside the absolute value is positive and when it is negative.
10 months ago
How to solve a simultaneous equation using the substitution method (3x+y=8 and 5x-3y=4)
Quora
How? You solve the system by using the method they specify. In particular, you pick one of the equations (it doesn't matter which), solve it for one of the...
1 month ago
A straight line has a gradient of -3 and passes through the point (1,2). Given that the line passes through a point (-1,k ...
Quora
To find the value of k when a straight line with a gradient of -3 passes through the point (1,2) and another point (-1,k), you can use the point-slope form...
8 months ago
How to determine the center and the radius of the circle (×-2) ² + (y-4) ²=25 and draw its graph
Quora
The general equation of a circle on an x-y graph {two axes at right angles to each other and intersecting at the point (0,0)}, with the center of the circle...
5 months ago