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2.5 yards

i need halp

KAIDON is definetly taking AOPS classes like Mellie.

The calculator should have a key labled "e", or "exp". Both stand for "exponent". The answer should look like this: 1.234e15, or 1.234e-15 =1.234 x 10^15 or 1.234 x 10^-15.

A fraction is a number we need for measuring. For counting, we have the natural and whole numbers: 1, 2, 3, 100 But when we measure something, such as a length (parts of one whole is what fractions are), it will not always be a whole number. Therefore we need numbers that are less than 1 - numbers that are the parts of 1: half of 1 (1/2), a third(1/3), a fourth(1/4), a fifth(1/5) and so on...

Thank you!

log_b( x · y / z )  =  log_b( x )  +  log_b( y )  -  log_b( z )

s<=>D

To find the HCF (highest common factor) for two numbers, factor the two numbers and use the factors that are found in both numbers (the number of times that they are found in each number):

27  =  3 x 3 x 3

45  =  3 x 3 x 5         So the HCF  =  3 x 3  =  9

18  =  2 x 3 x 3

66  =  2 x 3 x 11       So the HCF  =  2 x 3  =  6

96  =  2 x 2 x 2 x 2 x 2 x 3

44  =  2 x 2 x 11       So the HCF  =  2 x 2  =  4

sqrt( 9 / 16 )  =  sqrt( 9 ) / sqrt( 16 )  =  3/4.

33 1/3 %  is  33.33333333...  [with the threes never stopping]

                                               and  33 1/3  isn't exactly  33.33  [33.33 is only an approximation]

So:  33 1/3  +  33 1/3  +  33 1/3   is  100  [exactly].

And:  33 1/3  +  33 1/3  +  33 1/3  =  33.333...  +  33.333...  +  33.333...

                                                     =  99.999...     [with the nines never stopping]

So, why does  99.999...  equal  100?

Two different arguments (both correct);

First.  If you have two different numbers, there must be another number between them (actually many numbers between them).  So, if  99.999...  and  100  are different number,  what is a number between 99.999...   [remember that the nines never stop]?  No one can find another number between them, so they must be the same number.

Second:  an algebra proof.

  Call the number  n  to equal  99.999...  and also  find 100n  which is  9999.999...  and subtract them:

                              100n  =  9999.999999999999999...

                                    n  =      99.999999999999999...

Subtracting:             99n  =  9900.000000000000000...

Dividing by 99:             n  =  100.0000000000000000...  or, more simply,  100

Therefore,       99.999...  =  100

The answer is # 4

Her 12 mph is the same as :

No.1 and No. 4

a worker can assemble 5 motors in 2 hours. how long would it take to make 50. what is the expression

50 / (5/2) =50 x 2/5 =100/5=20 hours to assemble 50 motors.

what is 1/125 in percent

1/125=0.008 x 100 =0.8%

-2/2/3

-2/2 x 3

-1 x 3

= -3

-2/2/3

-2/2 x 3

-1 x 3

= -3

12-|2v|=-3

-|2v|=-15

|2v|=15

2v=+-15

v=+7.5 or -7.5

Isn't the geometrical shape of the gold leaf important? Is it pressed into a circle, a square, a rectangle....etc.

Density=Mass/ Volume

Volume=Mass/Density

V=4.895 / 19.32

V=0.253364 cubic cm

Volume of a cylinder.

V=Pi. r^2. L. I'm assuming that the radius is 2,000 micrometers =0.2 cm

0.253364=3.141592 . 0.2^2 . L

0.253364=3.141592 x 0.04 x L

L=~2 cm

The first question's answer is 3. because you're multiplying the perimiter by the width times 3.

For the second question you must replace the letters in the equation by the values stated in the question.

3r(t+4)

=3(2)(7+4)

=6(11)

=66

Therefore the answer is 1.

I'm assuming it's a y=mx+b function. 

You put the numbers so that the y is alone

4y=54-15x

then you divide the equation by 4 so that the y has a coefficient of 1.

y=-13.5x+3.75