Homework#1

explanations

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+Feynman Writing Prompts - Write out explanations of the following concepts like you are explaining it to a 12 year old. Doing this will help you quickly discover any holes in your understanding. Ask your questions on Slack.
+	◦	Variables
+    		Variables are used to find values in a computer program. For example, I may have 2 bowls filled with cereal. If I wanted to find out how much cereal is in each bowl, I would write a variable describing each bowl. Then I would write the value (amount of cereal) of each bowl. Depending on what is necessary, simple math would give me a value. 
+
+	◦	Strings
+		Strings are values attached to a variable. Usually the string is comprised of both letters and numbers or only letters. An example: #Flex=67THU865 (not actual). When a command of print a variable is given the value of String is shown. 
+
+	◦	Functions (arguments, return)
+		A Function instructs the computer what needs to be done. Arguments are contained in Functions for added instructions. The Return feature of a Function tells the computer whether the value of a code can be reused. 
+
+	◦	if statements
+		Similar to how Variables can equal a value, a “if statement” tells the computer that if a value is true or false, to print a given statement. Example: 
+		if (5>4){ 
+			print “Power”
+			}
+
+	◦	Boolean values (true, false)
+		A Boolean examines conditional statements for values to determine if it is True or False. 
+		Example: “Coding is cool and fun.” value1=cool, value2=fun, Boolean=and Results=True

hw-exercises.js

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+//Do not change any of the function names
+
+function multiplyByTen(num) {
+  // return num after multiplying it by ten
+  // if (num * 10){
+   return;
+}
+}
+
+function subtractFive(num) {
+  // return num after subtracting five
+  // if (num - 5){
+  return;
+}
+}
+
+function areSameLength(str1, str2) {
+  // return true if the two strings have the same length
+  // otherwise return false
+  // if (str1=areSameLength, str2=areSameLength){
+      print "true";
+}
+else {
+  print "false";
+}
+}
+
+
+function areEqual(x, y) {
+  // return true if x and y are the same
+  // otherwise return false
+  // if (x=areEqual, y=areEqual){
+  print "true";
+}
+  else {
+    print "false";
+  }
+}
+
+function lessThanNinety(num) {
+  // return true if num is less than ninety
+  // otherwise return false
+  // if (num < 90){
+  return "true";
+}
+else { 
+  print "false";
+}
+}
+
+function greaterThanFifty(num) {
+  // return true if num is greater than fifty
+  // otherwise return false
+  // if (num > 50) {
+  return "true";
+}
+else {
+  print "false";
+}  
+}
+
+function add(x, y) {
+  // add x and y together and return the value
+  // if (x+y){
+  return;
+}
+}
+
+function subtract(x, y) {
+  // subtract y from x and return the value
+  // if (x-y) {
+  return;
+}
+}
+
+function divide(x, y) {
+  // divide x by y and return the value
+  // if (x/y){
+  return;
+}
+}
+
+function multiply(x, y) {
+  // multiply x by y and return the value
+  // if (x * y) {
+  return;
+}
+}
+
+function getRemainder(x, y) {
+  // return the remainder from dividing x by y
+  // if (x % y) {
+  return;
+}
+}
+
+function isEven(num) {
+  // return true if num is even
+  // otherwise return false
+  // if num=isEven {
+  print "true";
+}
+else {
+  print "false";
+}
+}
+
+function isOdd(num) {
+  // return true if num is false
+  // otherwise return false
+  // if num=isOdd{
+  print "true";
+}
+else {
+  print "false";
+}
+}
+
+function square(num) {
+  // square num and return the new value
+  // if math.sqrt(num){
+  return;
+}
+}
+
+function cube(num) {
+  // cube num and return the new value
+  // if math.cube(num){
+  return;
+}
+}
+
+function raiseToPower(num, exponent) {
+  // raise num to whatever power is passed in as exponent
+  // math.pow(num,exponent){
+  return;
+}
+}
+
+function roundNumber(num) {
+  // round num and return it
+  // math.round(num){
+  return;
+}
+}
+
+function roundUp(num) {
+  // round num up and return it
+  // math.roundUp(num){
+  return;
+}
+}
+
+function addExclamationPoint(str) {
+  // add an exclamation point to the end of str and return the new string
+  // 'hello world' -> 'hello world!'
+  //  ('str!'){
+  return;
+}
+}
+
+function combineNames(firstName, lastName) {
+  // return firstName and lastName combined as one string and separated by a space.
+  // 'Lambda', 'School' -> 'Lambda School'
+  // var firstName = 'firstName'
+  // var lastName = 'lastName'
+  // var fullName ='firstName + lastName'{
+  return;
+}
+}
+
+function getGreeting(name) {
+  // Take the name string and concatenate other strings onto it so it takes the following form:
+  // 'Sam' -> 'Hello Sam!'
+  // var That's my = 'That's my'
+  // var name = 'name'
+  // var getGreeting = 'That's my + name';
+
+// If you can't remember these area formulas then head over to Google or look at the test code.
+
+function getRectangleArea(length, width) {
+  // return the area of the rectangle by using length and width
+  // var l = 'length'
+  // var w = 'width'
+  // var (l * w) = 'area' {
+  return;
+}
+}
+
+function getTriangleArea(base, height) {
+  // return the area of the triangle by using base and height
+  // var b = 'base'
+  // var h = 'height'
+  // var ((b * h)/2) = 'area'{
+  return;
+}
+}
+
+function getCircleArea(radius) {
+  // return the rounded area of the circle given the radius
+  // var r = 'radius'
+  // var pi = 'math.pi'
+  // var (pi * r * r) = 'area'{
+  return;
+}
+}
+
+function getRectangularPrismVolume(length, width, height) {
+  // return the volume of the 3D rectangular prism given the length, width, and height
+  // var l = 'length'
+  // var w = 'width'
+  // var heigh = 'height'
+  // var (l * w * h) = 'volume'{
+  return;
+}
+}