MATH QUIZ !!!

[yokam]

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sure ni nga 49,995? dli -49,995?

LOL. My bad.

Question:

Convert 360o into radians

Radians = Degrees x (pi / 180)

Radians = 360 x (3.14 / 180)

Answer:
360 degrees = 6.28 radians

Problem:

John ran 100 meters east, went back 150 meters west, and ran back 50 meters east. What is his total displacement?

[isaac95]

Problem:

John ran 100 meters east, went back 150 meters west, and ran back 50 meters east. What is his total displacement?

Ans:

Therefore I conclude that this problem is answerable by a LINEAR QUANTITY....

Ddisplacement = 0


Problem:

A man pulls a 80 N object across a horizontal surface using a 50 N force applied at a 25°
angle. What is the normal force? If the coefficient of friction is 0.3, what is the acceleration
of the object?

[yokam]

W = -80 N

FPerpendicular = W cos (angle)

FPerpendicular = 80 cos 25

FPerpendicular = 72.5 N (down)

FN = -FPerpendicular

FN = 72.5 N

FParallel = F sin (angle)

FParallel = 50 sin (25)

FParallel = 21.13 N (up)

FNormal = FPerpendicular = 72.5 N (down)

F = 72.5 N (0.3)

F = 21.75 N

FEff = (72.5 - 21.75) N

FEff = 50.75 N

A = F/M

1 kg = 9.8 N

80 N = 8.16 kg

A = 50.75 N / 8.16 kg

A = 6.12 m/s2

**Not really sure about the acceleration.

OT: I think this problem violates the rules for this thread. A calculator must be used to compute for this problem.

Problem:

40% of 50% of 500 is what number?

[isaac95]

Problem:

40% of 50% of 500 is what number?

Sol:

50% of 500 = 0.50 x 500
= 250

40 % of 250 = 0.40 x 250
= 100


question:

sin2 a + cos2 a =

[shaxyra]

1 man guro na?! haha

2x+1040+x=220

what is x?

[isaac95]

perfect

1 man guro na?! haha

2x+1040+x=220

what is x?

Sol:

2x + 1040 + x = 220

3x = 220 - 1040

3x = -820

x = -273.33


Question:

tan2 a + 1 =

[yokam]

Question:

tan2 a + 1 =

Ans: sec2 a

Problem:

What angle is 100% grade on a sine scale?

[the_guardian]

Ans.: 49,995

Problem:

Prove that:

1 + 1 = 10

only thru binary systems of number wherein 0 & 1 are the only numbers

unlike the decimal system wherein we count as 1 2 3 4 5 6 7 8 9 10 11

the binary goes like this

0 1 10 11 100 101 110 111 1000 1001 1010 1011 1100 1101 1110 1111

so if you add 1 + 1 = 10 since the only higher number after 1 is 10



Question:

3 cats can kill 3 mice in a minute, how minutes does it take for 9 cats to kill 9 mice?

[yokam]

Ans.

1 minute

Back to the previous question:

What angle is 100% grade on a sine scale?

[isaac95]

Ans:

Right Angle


Question:

A circular functions and also called as functions of an angle.