Scratch

Ace-of-Spades · 2010-02-12 22:26:52

Question 1.
A) How many radians per minute does the minute hand in a clock turn?
B) How many radians per minute does the hand hand turn?
C) How many times as fast as the hour hand does the minute hand turn?

Question 2.
A wheelchair ramp rises 0.7m and is 4.2m long. What is the angle of inclination to 1 decimal place?

Question 3.
In the Great Pyramid of Giza, there is a 115m long passage that leads from the Northern Face to an interior chamber. If the chamber is 50m below the opening of the passage, find the angle of inclination of the passage to 1 decimal place.

Question 4.
Triangle ABC is a right angle scalene triangle. If CB is 18m long, and CA is 30m long, solve the triangle to 1 decimal place.

Question 5.
Solve [Delta]XYZ if AngleY = 90 degrees and XY = 24, XZ = 35

Question 6.
At a point 28m away, the angle of elevation of a building is 65 dregress. How tall is the building?

Question 7.
Two office towers are 31.7m apart. From the shorter one, the angle og elevation to the top of the other is 27.5 degrees, while the angle of depression to the base is 78.2 degrees. Find the height of each tower.

Question 8.
Find the Value to 3 decimal places of each trigonometric ratio:
A) csc 17 degrees
B) cot 29 degrees
C) sec 64 degrees

Question 9.
Find the value of the Angle to the nearest degree:
A) cscAngle = 1.624
B) cotAngle = 0.675
C) secAngle = 1.058

Question 10.
The Calgary Tower 190m high and casts a shadow 84m long. Find the angle to the nearest degree which the sun's rays make with the ground.

ScratchX · 2010-02-12 22:28:08

Ace-of-Spades wrote:
Question 1.
A) How many radians per minute does the minute hand in a clock turn?
B) How many radians per minute does the hand hand turn?
C) How many times as fast as the hour hand does the minute hand turn?

Question 2.
A wheelchair ramp rises 0.7m and is 4.2m long. What is the angle of inclination to 1 decimal place?

Question 3.
In the Great Pyramid of Giza, there is a 115m long passage that leads from the Northern Face to an interior chamber. If the chamber is 50m below the opening of the passage, find the angle of inclination of the passage to 1 decimal place.

Question 4.
Triangle ABC is a right angle scalene triangle. If CB is 18m long, and CA is 30m long, solve the triangle to 1 decimal place.

Question 5.
Solve [Delta]XYZ if AngleY = 90 degrees and XY = 24, XZ = 35

Question 6.
At a point 28m away, the angle of elevation of a building is 65 dregress. How tall is the building?

Question 7.
Two office towers are 31.7m apart. From the shorter one, the angle og elevation to the top of the other is 27.5 degrees, while the angle of depression to the base is 78.2 degrees. Find the height of each tower.

Question 8.
Find the Value to 3 decimal places of each trigonometric ratio:
A) csc 17 degrees
B) cot 29 degrees
C) sec 64 degrees

Question 9.
Find the value of the Angle to the nearest degree:
A) cscAngle = 1.624
B) cotAngle = 0.675
C) secAngle = 1.058

Question 10.
The Calgary Tower 190m high and casts a shadow 84m long. Find the angle to the nearest degree which the sun's rays make with the ground.

1-10 is...What ever the answer is. big_smile

Ace-of-Spades · 2010-02-12 22:34:09

*gasp* I'm absolutely shocked that you would suspect that I'm getting you to do my homework for me.

ScratchX · 2010-02-12 22:37:41

Ace-of-Spades wrote:
*gasp* I'm absolutely shocked that you would suspect that I'm getting you to do my homework for me.

I would be glad to help you on your homework. big_smile
However, i have a few questions.
Is number 9 connected to number 8? If it isn't then I am sure number 9 is missing a diagram.

Last edited by ScratchX (2010-02-12 22:37:49)

Ace-of-Spades · 2010-02-12 22:41:19

Well I can't exactly drag the diagrams into the computer without a working scanner. This is just the stuff I'm lazy to do. I tried ommitting all of the harder questions though, and all of the ones with diagrams needed. (and also the really long ones that I was too lazy to type out).

This is about 25% of my total math homework, not solvable-wise, but question-number-wise

Oh and neither 8 nor 9 have diagrams or are related.

Last edited by Ace-of-Spades (2010-02-12 22:42:48)

ScratchX · 2010-02-12 22:42:17

Ace-of-Spades wrote:
Well I can't exactly drag the diagrams into the computer without a working scanner. This is just the stuff I'm lazy to do. I tried ommitting all of the harder questions though, and all of the ones with diagrams needed. (and also the really long ones that I was too lazy to type out).

This is about 25% of my total math homework, not solvable-wise, but question-number-wise.

Well, its ok. I'm still glad to help. big_smile

Ace-of-Spades · 2010-02-12 22:43:30

Thanks.

juststickman · 2010-02-13 06:49:52

This is a quarter of your math homework? Lucky you.

TheSaint · 2010-02-13 07:03:32

Ace-of-Spades wrote:
Question 1.
A) How many radians per minute does the minute hand in a clock turn? 1/30
B) How many radians per minute does the hand hand turn? 2
C) How many times as fast as the hour hand does the minute hand turn? 30 Degrees : 1degree

Question 2.
A wheelchair ramp rises 0.7m and is 4.2m long. What is the angle of inclination to 1 decimal place? 9.5 Degrees

Question 3.
In the Great Pyramid of Giza, there is a 115m long passage that leads from the Northern Face to an interior chamber. If the chamber is 50m below the opening of the passage, find the angle of inclination of the passage to 1 decimal place. You are desending at 23.5 degrees

Question 4.
Triangle ABC is a right angle scalene triangle. If CB is 18m long, and CA is 30m long, solve the triangle to 1 decimal place.

BA=35.0
Angle A= 30.9
Angle B=59.1
Angle C= 90

Question 5.
Solve [Delta]XYZ if AngleY = 90 degrees and XY = 24, XZ = 35
YZ=25.5

Question 6.
At a point 28m away, the angle of elevation of a building is 65 dregress. How tall is the building?

Question 7.
Two office towers are 31.7m apart. From the shorter one, the angle og elevation to the top of the other is 27.5 degrees, while the angle of depression to the base is 78.2 degrees. Find the height of each tower.

Question 8.
Find the Value to 3 decimal places of each trigonometric ratio:
A) csc 17 degrees
B) cot 29 degrees
C) sec 64 degrees

Question 9.
Find the value of the Angle to the nearest degree:
A) cscAngle = 1.624 35.28
B) cotAngle = 0.675 84.9[/b[
C) secAngle = 1.058 [b]1

Question 10.
The Calgary Tower 190m high and casts a shadow 84m long. Find the angle to the nearest degree which the sun's rays make with the ground.
66 degrees

Sorry about not finishing the rest of your homework, I got bored. tongue

Really, this gave you difficulty? Most of it is sin/cos/tan, and the rest is proportions and a2+b2=c2.

TheSaint · 2010-02-13 07:04:44

ScratchX wrote:
Ace-of-Spades wrote:
*gasp* I'm absolutely shocked that you would suspect that I'm getting you to do my homework for me.
I would be glad to help you on your homework.
However, i have a few questions.
Is number 9 connected to number 8? If it isn't then I am sure number 9 is missing a diagram.

NO, it isn't missing anything. YOu just have to know what to plug in.

demosthenes · 2010-02-13 07:12:31

Ace-of-Spades wrote:
Question 1.
A) How many radians per minute does the minute hand in a clock turn?
B) How many radians per minute does the hour hand turn?
C) How many times as fast as the hour hand does the minute hand turn?

Question 2.
A wheelchair ramp rises 0.7m and is 4.2m long. What is the angle of inclination to 1 decimal place?

Question 3.
In the Great Pyramid of Giza, there is a 115m long passage that leads from the Northern Face to an interior chamber. If the chamber is 50m below the opening of the passage, find the angle of inclination of the passage to 1 decimal place.

Question 4.
Triangle ABC is a right angle scalene triangle. If CB is 18m long, and CA is 30m long, solve the triangle to 1 decimal place.

Question 5.
Solve [Delta]XYZ if AngleY = 90 degrees and XY = 24, XZ = 35

Question 6.
At a point 28m away, the angle of elevation of a building is 65 dregress. How tall is the building?

Question 7.
Two office towers are 31.7m apart. From the shorter one, the angle og elevation to the top of the other is 27.5 degrees, while the angle of depression to the base is 78.2 degrees. Find the height of each tower.

Question 8.
Find the Value to 3 decimal places of each trigonometric ratio:
A) csc 17 degrees
B) cot 29 degrees
C) sec 64 degrees

Question 9.
Find the value of the Angle to the nearest degree:
A) cscAngle = 1.624
B) cotAngle = 0.675
C) secAngle = 1.058

Question 10.
The Calgary Tower 190m high and casts a shadow 84m long. Find the angle to the nearest degree which the sun's rays make with the ground.

1.
A. Pi over 30 right?
B. Pi over 720 . . .?
C. 24 times faster
Meh, so far I'm doing this pretty fast and they're boring. I might come back to them later . . .

steppenwulf · 2010-02-13 08:47:35

Question 1.

A) 2pi radians
B) Pi over 30 (in fraction form) Also, I think you meant "second hand" not "hand hand".
C) 12 times faster

Sorry I couldn't help more. I haven't learned how to do those other ones yet, but those are coming up in a few lessons.

How I solved them:

A) The minute hand moves in a full 360 every hour and there are 60 minutes in an hour. Divide 60 into 360 to get the degrees it turns per minute (6 degrees). To convert degrees into radians, multiply the degrees by pi/180. 6 times pi/180 = 6pi/180 which simplifies into pi/30.

B) The second hand moves in a full 360 every minute. Multiply 360 times pi/180 and you get 360pi/180 which simplifies into 2pi.

C) To find the number of degrees the hour hand turns in an hour, divide 360 by 12 (the number of hours) and you get 30. A minute hand moves 360 degrees in an hour while the hour hand only moves 30 degrees in an hour. Divide 360 degrees by 30 degrees and you get 12.

Last edited by steppenwulf (2010-02-13 10:08:21)

BWOG · 2010-02-13 08:56:31

Ace-of-Spades wrote:
Question 1.
A) How many radians per minute does the minute hand in a clock turn? Dunno
B) How many radians per minute does the hand hand turn? Dunno
C) How many times as fast as the hour hand does the minute hand turn? 60

Question 2.
A wheelchair ramp rises 0.7m and is 4.2m long. What is the angle of inclination to 1 decimal place? Dunno

Question 3.
In the Great Pyramid of Giza, there is a 115m long passage that leads from the Northern Face to an interior chamber. If the chamber is 50m below the opening of the passage, find the angle of inclination of the passage to 1 decimal place. Dunno

Question 4.
Triangle ABC is a right angle scalene triangle. If CB is 18m long, and CA is 30m long, solve the triangle to 1 decimal place. Dunno

Question 5.
Solve [Delta]XYZ if AngleY = 90 degrees and XY = 24, XZ = 35 Dunno

Question 6.
At a point 28m away, the angle of elevation of a building is 65 dregress. How tall is the building? Dunno

Question 7.
Two office towers are 31.7m apart. From the shorter one, the angle og elevation to the top of the other is 27.5 degrees, while the angle of depression to the base is 78.2 degrees. Find the height of each tower. Dunno

Question 8.
Find the Value to 3 decimal places of each trigonometric ratio:
A) csc 17 degrees Dunno
B) cot 29 degrees Dunno
C) sec 64 degrees Dunno

Question 9.
Find the value of the Angle to the nearest degree:
A) cscAngle = 1.624 Dunno
B) cotAngle = 0.675 Dunno
C) secAngle = 1.058 Dunno

Question 10.
The Calgary Tower 190m high and casts a shadow 84m long. Find the angle to the nearest degree which the sun's rays make with the ground. Dunno

Ace-of-Spades · 2010-02-13 10:00:34

Nevermind, I finished them all yesterday like an hour after I posted this. A moderator can close this. Or you guys can try solving Grade 12 homework. I'll post the answers if you want as well.

steppenwulf · 2010-02-13 10:02:12

Ace-of-Spades wrote:
Nevermind, I finished them all yesterday like an hour after I posted this. A moderator can close this. Or you guys can try solving Grade 12 homework. I'll post the answers if you want as well.

Grade 12? I'm doing this and I'm in grade 10. I just haven't gotten to the section with the angle of elevation yet. But could you tell me if my answers are right?

Last edited by steppenwulf (2010-02-13 10:02:56)

Ace-of-Spades · 2010-02-13 10:10:43

You learn this in grade 7, 8, 10, 12, etc. It's trigonometry.

steppenwulf · 2010-02-13 10:11:50

Ace-of-Spades wrote:
You learn this in grade 7, 8, 10, 12, etc. It's trigonometry.

So... are my answers right?

Lucario621 · 2010-02-13 10:13:25

TheSaint wrote:
Ace-of-Spades wrote:
Question 1.
A) How many radians per minute does the minute hand in a clock turn? 1/30
B) How many radians per minute does the hand hand turn? 2
C) How many times as fast as the hour hand does the minute hand turn? 30 Degrees : 1degree

Question 2.
A wheelchair ramp rises 0.7m and is 4.2m long. What is the angle of inclination to 1 decimal place? 9.5 Degrees

Question 3.
In the Great Pyramid of Giza, there is a 115m long passage that leads from the Northern Face to an interior chamber. If the chamber is 50m below the opening of the passage, find the angle of inclination of the passage to 1 decimal place. You are desending at 23.5 degrees

Question 4.
Triangle ABC is a right angle scalene triangle. If CB is 18m long, and CA is 30m long, solve the triangle to 1 decimal place.

BA=35.0
Angle A= 30.9
Angle B=59.1
Angle C= 90

Question 5.
Solve [Delta]XYZ if AngleY = 90 degrees and XY = 24, XZ = 35
YZ=25.5

Question 6.
At a point 28m away, the angle of elevation of a building is 65 dregress. How tall is the building?

Question 7.
Two office towers are 31.7m apart. From the shorter one, the angle og elevation to the top of the other is 27.5 degrees, while the angle of depression to the base is 78.2 degrees. Find the height of each tower.

Question 8.
Find the Value to 3 decimal places of each trigonometric ratio:
A) csc 17 degrees
B) cot 29 degrees
C) sec 64 degrees

Question 9.
Find the value of the Angle to the nearest degree:
A) cscAngle = 1.624 35.28
B) cotAngle = 0.675 84.9[/b[
C) secAngle = 1.058 [b]1

Question 10.
The Calgary Tower 190m high and casts a shadow 84m long. Find the angle to the nearest degree which the sun's rays make with the ground.
66 degrees
Sorry about not finishing the rest of your homework, I got bored.

Really, this gave you difficulty? Most of it is sin/cos/tan, and the rest is proportions and a2+b2=c2.

You're smaaarrtttt :3

Ace-of-Spades · 2010-02-13 10:22:53

Lucario621 wrote:
TheSaint wrote:
Ace-of-Spades wrote:
Question 1.
A) How many radians per minute does the minute hand in a clock turn? 1/30
B) How many radians per minute does the hand hand turn? 2
C) How many times as fast as the hour hand does the minute hand turn? 30 Degrees : 1degree

Question 2.
A wheelchair ramp rises 0.7m and is 4.2m long. What is the angle of inclination to 1 decimal place? 9.5 Degrees

Question 3.
In the Great Pyramid of Giza, there is a 115m long passage that leads from the Northern Face to an interior chamber. If the chamber is 50m below the opening of the passage, find the angle of inclination of the passage to 1 decimal place. You are desending at 23.5 degrees

Question 4.
Triangle ABC is a right angle scalene triangle. If CB is 18m long, and CA is 30m long, solve the triangle to 1 decimal place.

BA=35.0
Angle A= 30.9
Angle B=59.1
Angle C= 90

Question 5.
Solve [Delta]XYZ if AngleY = 90 degrees and XY = 24, XZ = 35
YZ=25.5

Question 6.
At a point 28m away, the angle of elevation of a building is 65 dregress. How tall is the building?

Question 7.
Two office towers are 31.7m apart. From the shorter one, the angle og elevation to the top of the other is 27.5 degrees, while the angle of depression to the base is 78.2 degrees. Find the height of each tower.

Question 8.
Find the Value to 3 decimal places of each trigonometric ratio:
A) csc 17 degrees
B) cot 29 degrees
C) sec 64 degrees

Question 9.
Find the value of the Angle to the nearest degree:
A) cscAngle = 1.624 35.28
B) cotAngle = 0.675 84.9[/b[
C) secAngle = 1.058 [b]1

Question 10.
The Calgary Tower 190m high and casts a shadow 84m long. Find the angle to the nearest degree which the sun's rays make with the ground.
66 degrees
Sorry about not finishing the rest of your homework, I got bored.

Really, this gave you difficulty? Most of it is sin/cos/tan, and the rest is proportions and a2+b2=c2.
You're smaaarrtttt :3

If you know how to use a calculator.
These aren't the ones that gave me trouble, these are the easy ones that didn't need diagrams that I was too lazy to try to work on, so I asked here.

@steppenwulf: I don't know, I'm not psychic.

Lucario621 · 2010-02-13 10:24:14

@Ace-of-Spades: I know this is off-topic, but what's with your signature? I mean it shows a bucn of people in wierd positions.... and then has a wierd phrase every time you refresh or go to a different page...

steppenwulf · 2010-02-13 10:27:05

@Ace: How can you not know if my answers are right if I posted them?...

Ace-of-Spades · 2010-02-13 10:39:29

Oh, you posted them?

@Lucario: It's the same picture over and over with a different quote each time you refresh (from Artemis Fowl, a book)

steppenwulf · 2010-02-13 10:42:37

Ace-of-Spades wrote:
Oh, you posted them?

@Lucario: It's the same picture over and over with a different quote each time you refresh (from Artemis Fowl, a book)

Yea I posted them, I could only do the first question since I haven't done angles of elevation and stuff. tongue

I also posted the scratch work.

Last edited by steppenwulf (2010-02-13 10:43:21)

Ace-of-Spades · 2010-02-13 10:43:07

Yes they're right, but part B meant for hour hand, not second hand. I copied and pasted the first question after I typed it, and then erased some stuff and rewrote it, but I guess when I was writing Hour, I wasn't paying attention and wrote another 4 letter word that beings with H and was in the question as well.

steppenwulf · 2010-02-13 10:44:47

Boo yah! All that workin' paid off. tongue

Scratch

archived forums

#1 2010-02-12 22:26:52

Super Math Challenge (IMPOSSIBLE QUESTIONS)

#2 2010-02-12 22:28:08

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

Ace-of-Spades wrote:

#3 2010-02-12 22:34:09

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

#4 2010-02-12 22:37:41

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

Ace-of-Spades wrote:

#5 2010-02-12 22:41:19

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

#6 2010-02-12 22:42:17

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

Ace-of-Spades wrote:

#7 2010-02-12 22:43:30

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

#8 2010-02-13 06:49:52

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

#9 2010-02-13 07:03:32

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

Ace-of-Spades wrote:

#10 2010-02-13 07:04:44

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

ScratchX wrote:

Ace-of-Spades wrote:

#11 2010-02-13 07:12:31

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

Ace-of-Spades wrote:

#12 2010-02-13 08:47:35

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

#13 2010-02-13 08:56:31

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

Ace-of-Spades wrote:

#14 2010-02-13 10:00:34

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

#15 2010-02-13 10:02:12

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

Ace-of-Spades wrote:

#16 2010-02-13 10:10:43

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

#17 2010-02-13 10:11:50

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

Ace-of-Spades wrote:

#18 2010-02-13 10:13:25

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

TheSaint wrote:

Ace-of-Spades wrote:

#19 2010-02-13 10:22:53

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

Lucario621 wrote:

TheSaint wrote:

Ace-of-Spades wrote:

#20 2010-02-13 10:24:14

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

#21 2010-02-13 10:27:05

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

#22 2010-02-13 10:39:29

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

#23 2010-02-13 10:42:37

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

Ace-of-Spades wrote:

#24 2010-02-13 10:43:07

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

#25 2010-02-13 10:44:47

Re: Super Math Challenge (IMPOSSIBLE QUESTIONS)

Board footer