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This is the equation of a line in the form of  y= mx + b   where m is the slope of the line

Slope of  y = - 3x + 4     is m=  - 3

X can be anything and you get y when you plug in any number for x

g(4) = 7 (4) - 2 = 26

f(26) = 8(26) + 4 = 212     so  f( g(4) ) = 212

Maybe YOU just gave it a name !!!

The symbol separating the dividend from the divisor in a long division that is drawn as a right parenthesis (or sometimes a straight vertical bar) with an attached vinculum extending to the right seems to have no established name of its own.

Long Division Symbol -- from Wolfram MathWorld

mathworld.wolfram.com/LongDivisionSymbol.html

Not sure exactly what you are trying to calculate.....

Perhaps this will help?

http://www.coolmath.com/reference/polygons-05-pentagons

On my system, I just click on the fullscrreen icon (the little square box in the upper right screen) ....

Maybe you will have to click/drag the borders outward in your itune app?

its 104.607 :))))))))))))))))))))))))))))))))))))))))))))))))))))

C-5

Yes, I thought about 20 km/h but then the answer 28,3 km/h was given.

Well done!!!!!!!!!

Even though this is clearly a troll:

250000000000000000000000000

Thanks- that helped a lot:)

Oh- I get it

3a - 3 - 3a =  (3a - 3a) - 3  = - 3

I think all that energy blew the exponent in to subatomic particles.

56=1/2(b)(7)

The equation is not defined unambiguously.
Use math brackets.

56=(1/2)(b)(7)    \(\large 56=\frac{1}{2}\times b\times 7\)     \(b=\frac{56\times 2}{7}=16\)

or

56=1/(2*b*7)       \(\large 56=\frac{1}{2\times b\times 7}\)     \(b=\frac{1}{56\times 2\times 7}=1.27551\times 10^{-3}\)

!

1/3 r > 3 1/2   Multiply both sides by 3 to get your answer:

r > 10 1/2

56=1/2 b  7        Multiply both sides by 2

112 = b7          divide by 7

b = 16

The titration steps in question are : (believe me...I had to look this one up)

- the iodate ions are reduced to form iodine

IO3- + 6 H+ + 5 e- --> ½ I2 + 3 H2O

- while the iodide ions are oxidised to form iodine.

2 I- --> I2 + 2 e-

Combining these half-equations demonstrates the reaction between iodate and iodide

IO3- + 5 I- + 6 H+ --> 3 I2 + 3 H2O

It is the iodine formed by this reaction that oxidises the ascorbic acid to dehydroascorbic acid as the iodine is reduced to iodide ions.

ascorbic acid + I2 --> 2 I- + dehydroascorbic acid

SO each mole of IO3-  used results in  3   I2 's       Each I2 reacts with one molecule of ascorbic acid (vit C).....so you will use   THREE times the vit C as moles of IO3-

7.5 x 10^-4 mole x 3=  = 22.5 x 10^-4 moles of vit C

(I think !)

eh 

A)When the ball hits the ground, the height will be zero so:

0 = -16x^2 +72 x 

72= 16x     x =  72/16 = 4.5 seconds

B)  The ball spends HALF of the time in the air going UP and half of the time coming back DOWN...so it reaches its MAXIMUM at  1/2  x  4.5  = 2.25 Seconds

Hmax = -16(2.25)^2 + 72(2.25) = 81 feet

C) The ball will be at 32 feet TWICE (going UP and coming DOWN)

    32 = -16x^2+72x       -16x^2 +72x - 32 = 0     Use quadratic formula to find x = 0.5 sec and 4 sec

I think you meant  e = mc^2 , Mr Einstein.....

this shows the amount of energy (e) in a given mass (m) is equal to that mass times the speed of light (c) SQUARED.

The speed of light is a really big number (3 x 10^ m/s) , so you can see how only a small mass can make such a HUGE nuclear explosion......or power a city for a very long time.....etc.

Via dimensional analysis:

8 people x 32 minutes   /  8 walls =  32   people - minutes / wall

12 walls / 12 people    x   32 people-minutes/wall =  32 minutes

Agree,   mostly......    the principal value for inverse COS is between  0 and pi/2  (inclusive)  for POSITIVE values of COS.

FWIW.