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Which elements of music were represented by notes on 5-line staff mensuration and time signature?
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How do you correctly answer schedule m on 1040 tax return?
Making Work Pay Credit and Government Retiree CreditsUse Schedule M to figure the following credits.* Making work pay credit.* Government retiree credit.The credits may give you a refund even if you do not owe tax.Go to the IRS gov website and use the search box for 2009 Instructions for Schedule M (Form 1040A or 1040) (2009)Table of ContentsMaking Work Pay and Government Retiree Credits IntroductionGeneral Instructions Who Can Take the CreditsEffect of Credits on Welfare BenefitsSpecific Instructions Line 1aLine 1bLine 5Line 10
What is the length of the tangent line from the point 8 2 to a point where it touches the circle of x2 plus y2 -4x -8y -5 equals 0?
The tangent of a circle is perpendicular to the radius to the point of contact (Xc, Yc).The point (Xg, Yg), the centre of the circle (Xo, Yo) and the point of contact of the tangent (Xc, Yc) form a right angle triangle.The leg from the point (Xg, Yg) to the point of contact (Xc, Yc) is the required lengthThe leg from the centre of the circle (Xo, Yo) to the point of contact (Xc, Yc) has length equal to the radius (r) of the circleThe hypotenuse is the length between the point (0, 0) and the centre of the circle (Xo, Yo).To solve this:Find the centre (Xo, Yo) of the circle, and its radius r;Use Pythagoras to find the length between the point (Xg, Yg) and the centre of the circle (Xo, Yo);Use Pythagoras to find the length between the point (Xg, Yg) and the point of contact (Xc, Yc) of the tangent - the required length.Hint: a circle with centre (Xo, Yo) and radius r has an equation of the form:(x - Xo)² + (y - Yo)² = r²Have a go at solving it now you know how, before reading the solution below:------------------------------------------------------------------------------Circle:x² + y² - 4x - 8y - 5 = 0→ x² - 4x + y² - 8y - 5 = 0→ (x - (4/2))² - (4/2)² + (y - (8/2))² - (8/2)² - 5= 0→ (x - 2)² - 4 + (y - 4)² - 16 - 5 = 0→ (x - 2)² + (y - 4)² = 25 = radius²→ Circle has centre (2, 4) and radius √25 = 5Line from centre of circle (2, 4) to the given point (8, 2):Using Pythagoras to find length of a line between two points (x1, y1) and (x2, y2):length = √((x2 - x1)² + (y2 - y1)²)To find length between given point (8, 2) and centre of circle (2, 4)→ length = √((2 - 8)² + (4 - 2)²)= √((-6)² + 2²)= √40Tangent line segment:Using Pythagoras to find length of tangent between point (8, 2) and its point of contact with the circle:centre_to_point² = tangent² + radius²→ tangent = √(centre_to_point² - radius²)= √((√40)² + 25)= √65≈ 8.06
What are the 21 laws of piru bloodz?
The Pirus aren't called the ''Piru Bloods'', they're just called the Pirus. Pirus and Bloods are two different gangs, however the Pirus are under the Blood Alliance...and this ain't the Folk and People Nation there ain't all these laws and codes...or ''21 laws'' or whatever....
Where to use the anonymous class in java?
Anonymous Inner Classes - Type OneCheck out the following code:class Ferrari {public void drive() {System.out.println("Ferrari");}}class Car {Ferrari p = new Ferrari() {public void drive() {System.out.println("anonymous Ferrari");}};}Let's look at what's in the preceding code:• We define two classes, Ferrari and Car.• Ferrari has one method, drive().• Car has one instance variable, declared as type Ferrari. That's it for Car. Car has no methods.And here's the big thing to getThe Ferrari reference variable refers not to an instance of Ferrari, but to an instance of an anonymous (unnamed) subclass of Ferrari.Let's look at just the anonymous class code:2. Ferrari p = new Ferrari() {3. public void drive() {4. System.out.println("anonymous Ferrari");5. }6. };Line 2Line 2 starts out as an instance variable declaration of type Ferrari. But instead of looking like this:Ferrari p = new Ferrari(); // notice the semicolon at the endthere's a curly brace at the end of line 2, where a semicolon would normally be.Ferrari p = new Ferrari() { // a curly brace, not a semicolonYou can read line 2 as saying,Declare a reference variable, p, of type Ferrari. Then declare a new class that has no name, but that is a subclass of Ferrari. And here's the curly brace that opens the class definition...Line 3Line 3, then, is actually the first statement within the new class definition. And what is it doing? Overriding the drive() method of the superclass Ferrari. This is the whole point of making an anonymous inner class-to override one or more methods of the superclass!Line 4Line 4 is the first statement within the overriding drive() method. Nothing special here.Line 5Line 5 is the closing curly brace of the drive() method. Nothing special here either.Line 6Here's where you have to pay attention: line 6 includes a curly brace closing off the anonymous class definition (it's the companion brace to the one on line 2), but there's more! Line 6 also has the semicolon that ends the statement started on line 2-the statement where it all began-the statement declaring and initializing the Ferrari reference variable. And what you're left with is a Ferrari reference to a brand-new instance of a brand-new, anonymous (no name) subclass of Ferrari.Anonymous Inner Classes Type TwoThe only difference between type one and type two is that type one creates an anonymous subclass of the specified class type, whereas type two creates an anonymous implementer of the specified interface type. In the previous examples, we defined a new anonymous subclass of type Ferrari as follows:Ferrari p = new Ferrari() {But if Ferrari were an interface type instead of a class type, then the new anonymous class would be an implementer of the interface rather than a subclass of the class. Look at the following example:interface Drivable {public void drive();}class Car {Drivable c = new Drivable() {public void drive() {System.out.println("anonymous Drivable implementer");}};}The preceding code, like the Ferrari example, still creates an instance of an anonymous inner class, but this time the new class is an implementer of the Drivable interface. And note that this is the only time you will ever see the syntaxnew Drivable()where Drivable is an interface rather than a non-abstract class type. Because think about it, you can't instantiate an interface, yet that's what the code looks like it's doing. But of course it's not instantiating a Drivable object, it's creating an instance of a new, anonymous, implementer of Drivable. You can read this line:Drivable c = new Drivable() {as, "Declare a reference variable of type Drivable that, obviously, will refer to an object from a class that implements the Drivable interface. But, oh yes, we don't yet have a class that implements Drivable, so we're going to make one right here, right now. We don't need a name for the class, but it will be a class that implements Drivable, and this curly brace starts the definition of the new implementing class."
