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12) What are electromagnetic radiation visible light and invisible light?
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12what is a 12 letter word that contains ppp AA rr o e d t?
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2x-3y equals 12what is the slope of this line?
y = -4 - 2/3x, so the slope would be -2/3, and the y-intercept would be -4.
A Circle centered at the origin runs through the point 5 12what is the radius of the circle?
x2 + y2 = r2 describes a circle, radius r, centred on the origin. r is thus sqrt(25 + 144) ie 13 units.
What is 4y plus 4 equals 2y plus 12what does y equal?
4y + 4 = 2y + 12Subtract 4 from each side of the equation:4y = 2y + 8Subtract 2y from each side:2y = 8Divide each side by 2 :y = 4
What is the fifth number if there is a sum of four numbers that equal 40 when there is a fifth number added and the mean of the numbers become 12what is the fifth number?
The sum of four numbers equals 40: a+b+c+d=40 Those same four numbers, along with another number (e), give the set a mean of 12: (a+b+c+d+e)/5=12 Use these two facts to determine e as follows: (a+b+c+d+e)/5=12 a+b+c+d+e=60 (a+b+c+d)+e=60 40+e=60 e=20
If somebody rolls 2 standard six-sided dice what is the probability he obtains a sum of 7 or 11?
2 out of 12Ans:1 2 3 4 5 6 1 2 3 4 5 6total no N of sums of two numbers assuming dice are indistinguishable:N = 36ways to get 7:1 and 6 with a chance of (1/6)*(1/6) = 1/362 and 5 wih a chance of 1/364 and 3 with a chance of 1/36whats the chance of getting 7 with either of these combinations:1/36 + 1/36+ 1/36 = 1/12what about 11:6 and 5, which is the only way to get an 11:the prob of this is (1/6)*(1/6) = 1/36the prob of getting a 7 or an 11, with two dice:1/36 + 1/12 = 1/9!Hopefully someone will jump in if I've made a mistake.OK, I've been told the answer is 2/9. If you do the same working as above, but you'll have to assume there are two ways to get each sum:example, if you get a 7 from 2 and 5, then you can also get 7 from a 5 and 2. This means the dice are distinguishable!
X minus 3y equals -3 and 6x plus 2y equals -12What type of lines are these?
Both of these equations describe straight lines in the xy-plane. At the y-axis x=0 and at the x-axis y=0. So, by substituting in x=0, we can find where the two lines cross the y-axis and, by substituting in y=0, we can find where they cross the x-axis. For the first line:x - 3y = -3 (sub in x=0)0 - 3y= -3(divide both sides by -3)y=1 ----> so this line crosses the y-axis at y=1 only.By following a similar process we can find that this line crosses the x-axis at x=-3 and that the second line, 6x + 2y = -12, crosses the x and y axes at x=-2 and y=-6respectively.If the two lines cross each other then, at some point in the xy-plane, their x and y values will be equal, meaning we can rearrange one equation and substitute it into the second one:Rearrange x - 3y = -3 to give:x = 3y - 3So we can substitute 3y - 3 into the second equation, 6x + 2y = -12, giving:6(3y - 3) + 2y = -12(multiply out the bracket and collect terms)20y - 18 = -12(add 3 to both sides and then divide both sides by 20)y= 6/20 = 0.3(sub this back into x= 3y - 3 to find x)x=-2.1So, the two lines cross each other at the point (-2.1, 0.3)
What are the answers to the SmileCity 20 questions quiz?
You scored 14/14. Congratulations, you passed. You have just earned 20 Exp!Question 1Which of the following statements is true?You answerPlaying the Guessing Game is freeis correctQuestion 2When do you need to fill out a "claim form" to claim for your reward points from SmileCity?You answerAfter purchasing from an Online Shopping Reward Partneris correctQuestion 3Which of the following statements is NOT true?You answerThe interest rate is fixed for the entire term of an eBank depositis correctQuestion 4How long do you need to wait after clicking on a Web Clicks ad in order to earn 2 points?You answer10 secondsis correctQuestion 5How can you receive entries into the competition to win a share of $10,000?You answerAll of the aboveis correctQuestion 6Points for a completed online survey are normally credited to your account:You answerWithin 2 monthsis correctQuestion 7Which of the following is NOT a benefit of SmileCity Gold Membership?You answerUp to 5% bonus interest rate in the eBankis correctQuestion 8Is it possible to transfer your rewards to someone else's account?You answerNo, it is not possibleis correctQuestion 9What is the SmileCity Quick Survey?You answerA simple question in the Earn section that I can answer every day to earn pointsis correctQuestion 10When you refer a friend to SmileCity, you will earn 200 points:You answerOnce your referred friend earns 400 pointsis correctQuestion 11A member can be black-listed from future surveys if they are found to be giving dishonest or inconsistent answers to survey questions. True or false?You answerTrueis correctQuestion 12What is SmileCity Exp?You answerSmileCity Experience levelis correctQuestion 13How can you earn 5 points when you receive an Email Rewards advertising email?You answerYou must read the email and click on the correct link in the email, within 14 daysis correctQuestion 14To earn rewards from SmileCity Reward Partners, do you need to have a credit card?You answerNo, there are many SmileCity Reward Partners that accept cheques, PayPal, bank transfer, or money ordersis correct
