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Bromine
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How many meters equals 1 hectare?
10,000 square metres = 1 hectare<br><br><br>
How do I create a web page that lets a user enter as many values as they wish until the entry of a 0. Then find the sum and the average of all the numbers and show sum and average on screen. In code?
You could do this using Javascript.1) create a textfield2) create a submit button3) define two Javascript variables: a running tally, and a click-counter4) give the button an onclick event that calls a function that works like this:read the value from the text fieldconvert it to a numeric valueif that value is 0 {if the counter != 0 {display the tally and the average (which equals tally over counter)}else{either display an error message, or 0 as both the tally and average - to your taste.}reset both the tally and the counter to 0}else{add the value to the tallyincrement the counter by 1}And here's a working example of how to do it:span.buttonClass{background-color: #C8C8C8;padding: 4px;border-width: 2px;border-style: outset;font-weight: bold;}The Summinator!var tally = 0, counter = 0;function addValue(){var textfield = document.getElementById("addVal");var avgfield = document.getElementById("avgfield");var sumfield = document.getElementById("sumfield");var num = parseFloat(textfield.value);var sum, avg;textfield.value = '';if(isNaN(num)){ // make sure they entered a numberalert("Please enter a numeric value.");}else{if(num != 0){tally += num;counter ++;sumfield.textContent = "";avgfield.textContent = "";}else{if(counter == 0){sum = avg = 0;}else{sum = tally;avg = tally / counter;}sumfield.innerHTML = "The sum is " + sum;avgfield.innerHTML = "The average is " + avg;tally = counter = 0;}}}Add ValueYou can even make it a little nicer by having it output the sum and average each time a number is entered, rather than waiting for the zero input (which would still reset things). That actually simplifies the code too, and would look like this:...if(isNaN(num)){ // make sure they entered a numberalert("Please enter a numeric value.");}else{if(num != 0){tally += num;counter ++;sum = tally;avg = tally / counter;}else{sum = avg = tally = counter = 0;}sumfield.innerHTML = "The sum is " + sum;avgfield.innerHTML = "The average is " + avg;}...
Why was the number zero invented and by whom was it invented?
the number zero is first used by Indians only not by any one else<br /><br /><br /><br /> The number zero was actually invented by the <i><b>Ancient Egyptians
What does BR FT mean on a metar?
Br means Mist... in spanish i guess Br comes from Bruma, a kind of Mist. Fg is Fog, Fu is Smoke (from "fumarola" in spanish as well)
Does dibromomethane have a plane of symmetry?
yes, across the Br-C-Br/H-C-H planes.
What is Br number of protons?
Br-80 has 35 protons.
What does Br mean on the periodic table?
Br is element # 35 on the non-metal side Br is element # 35 on the non-metal side
How many protons are in br-80?
Br-80 has 35 protons.
Identify the element in this group MgO Br LiF PbO?
Br is the symbol for bromine (element number 35).
Chemical symbol of bromine?
(Br) with atomic no 35
What is the atomic no of Br?
The atomic number of bromine is 35.
What element has a charge of plus 35 on its nucleus?
Bromine(Br) has a charge of +35 on its nucleus
What does the number 35 above Br represent in the periodic table?
The number 35 above Br represents its atomic number. It is also equal to number of protons in Bromine.
How many protons and electrons in ion Br?
35 protons, 36 electrons
How many electrons in Br?
To be neutral, Bromine (atomic symbol Br) has 35 electrons. Ions have more or less.
What is the element with the symbol BR?
Bromine is a non metal. atomic number of it is 35.
How many protons neutrons electrons does bromine 80 have?
Br-80 has 35 protons, the element has 35 electrons (bromide anion has one more), and 80-35=45 neutrons.
