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#176 Re: Help Me ! » [ASK] Probability of Getting the Main Doorprize » 2019-10-28 15:28:53
Ah, thank you. Guess I was overthinking this.
#177 Re: Help Me ! » Linear inequalities » 2019-10-27 18:38:44
When both sides is multiplied or divided by a negative number.
#178 Help Me ! » [ASK] Probability of Getting the Main Doorprize » 2019-10-27 18:20:12
- Monox D. I-Fly
- Replies: 2
There's an event which is joined by 240 members. The Event Organizer prepares 30 doorprize with one of them being the main ones. If Mr. Aziz's family has 15 tickets, the probability that Mr. Aziz gets the main doorprize is ....
A. 1/16
B. 1/8
C. 1/4
D. 1/2
I thought the answer was 15/240 (the probability of Mr. Aziz's family getting the doorprize) times 1/30 (the main one among the doorprize) and it results in 1/480, but it's not in the options. Is the book wrong or am I the one who miscalculated?
#179 Re: Jai Ganesh's Puzzles » Oral puzzles » 2019-10-23 18:48:55
#180 Re: Jai Ganesh's Puzzles » Oral puzzles » 2019-10-23 15:27:39
#181 Re: This is Cool » Miscellany » 2019-10-16 14:39:27
In certain parts of the world, grasshoppers are eaten as food. They are often dried, jellied, roasted and dipped in honey or ground into a meal.
Only ever eaten the fried one, and it was delicious.
#182 Re: Help Me ! » [ASK]Quadratic Inequation » 2019-10-07 14:25:21
Ah, so indeed there's no solution.
#183 Re: Jai Ganesh's Puzzles » Oral puzzles » 2019-10-06 15:39:49
#184 Re: Help Me ! » [ASK]Quadratic Inequation » 2019-10-06 14:02:34
I've plotter the graph and it's a U-shaped quadratic above the x axis. So no roots seems right. But as we want >0 we can say the inequality is true for all Y
That is
Bob
Well, my partner (who asked the question in the first place) did try an online calculator to solve it and got no result, but she thought that it's merely because no one has submitted a solution to the exact question yet.
#186 Re: Help Me ! » [ASK]Quadratic Inequation » 2019-10-04 14:24:14
So, there's indeed no real solution?
#187 Re: Help Me ! » [ASK]Quadratic Inequation » 2019-10-03 19:57:45
I'll look forward to what you'll come up with.
Also, thanks for removing the useless comment from another member.
#188 Help Me ! » [ASK]Quadratic Inequation » 2019-10-03 14:27:17
- Monox D. I-Fly
- Replies: 11
How to solve this?
This is what I've done so far:
How to solve the quadratic inequation formed? Factorization is an obvious no, and the quadratic formula will just make everything messier, is there any other way?
#189 Re: Jai Ganesh's Puzzles » Oral puzzles » 2019-10-02 14:27:03
#190 Re: Jai Ganesh's Puzzles » 10 second questions » 2019-09-23 14:30:28
#192 Re: Jai Ganesh's Puzzles » Oral puzzles » 2019-09-19 14:27:54
#193 Re: Jai Ganesh's Puzzles » 10 second questions » 2019-09-19 14:25:43
#194 Re: Jai Ganesh's Puzzles » 10 second questions » 2019-09-18 18:58:53
#195 Re: Help Me ! » [ASK] Equation of a Circle » 2019-09-18 18:07:22
Thank you.
#196 Re: Jai Ganesh's Puzzles » 10 second questions » 2019-09-17 21:03:27
#197 Help Me ! » [ASK] Equation of a Circle » 2019-09-17 20:45:18
- Monox D. I-Fly
- Replies: 2
find standard eqations of circles that have centers on 4x+3y=8 and are tangent to both the line x+y=-2 and 7x-y=-6
What I got is
and . Dunno how to continue from here.#198 Re: Jai Ganesh's Puzzles » 10 second questions » 2019-09-17 15:36:28
#199 Re: Jai Ganesh's Puzzles » 10 second questions » 2019-09-17 14:27:16
#200 Re: Help Me ! » addition between two number » 2019-09-15 19:02:01
Oh, Google interprets "5 + 10%" as 5 + "10% of 5", then.