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  atan is the same thing.  :)

19. If you have 9 ones and 10 ones, 10 + 9 = 19. Correct me if I'm wrong, but I think the answer is 19.

if you are trying to graph $$\mathrm{-15}\textit{y}\mathrm{<3}$$, then use a graphing calculator!

5 apples and a dead body

1/4=25/100

4.49=449/100

449/100-25/100=424/100

424/100=4.24

I hope this helps

Yes, it is.

The formula for a frustum of a cone is V = (Π·h/3)( R²+ Rr + r² )

where h is the height of the frustum and R and r are the two radii of the ends.

The formula for a frustum of a pyramid is V = (h/3)( A+ a + √(Aa) )

where h is th height of the grustum and A and a are the areas of the two ends.

(This formula was used by the ancient Egyptians, who didn't even have any algebra! or a number system as easy to use as ours!)

It appears that the vertex is at  (7.5, 4)....and since a parabola is symmetric about its vertex, the y value at x = 15 will have the same value as at x = 0, i.e., -3,  since x =0  and x = 15 are both 7.5 units from x = 7.5 ...so we have ...... q(15) = -3

It appears that this is a parabola with vertex at (7.5, 4) and passing through the point (0, -3).

An equation for a parabola is  y - k = a(x - h)²   The vertex is (h, k)

So, we have:  y - 4 = a(x - 7.5)² 

To find the value for a, let's use the point (0, -3):  -3 - 4 = a(0 - 7.5)² 

--->   -7 = a(-7.5)²     --->   -7 = 56.25a   --->   a = -28/225

--->   y - 4 = (-28/225)(x - 7.5)² 

Substituting 15 for x:  y - 4 = (-28/225)(15 - 7.5)²   -->  y =  -3

Distance / time = Rate    ...  so we have...

120 miles / 2.5 hrs. = 48 mph

Assuming that the Sun is completely spherical and its exact center lies at (0,0)    ....and......

Depending upon the orientation of Venus's orbit ( I'll choose to have the apogee on the x axis)....we have

"a"  = .728 + .0043  = .7323

"b" =  .719 + .0043 =  .7233     so we have

x² / (a)² +  y² / (b)² = 1

x² / (.7323)² +  y² / (.7233)² = 1

x² / .53626329 +  y² / .52316289 = 1

21 or 19. 21 was proven by a MIT student. and 19 is what people regularly get

Since both 1 134 218 and 1 135 620 are both even, 2 divides into both

1 134 218 ÷ 2 = 567 109

1 134 620 ÷ 2 = 567 810

After going online and finding a list of prime numbers, trying them one by one, you can get to 701:

567 109 ÷ 701 = 809

567 810 ÷ 701 = 810

Since 809 and 810 are relatively prime (no whole number divides into both of them), we can stop.

The greatest common factor is 2 x 701 = 1402.

Actually, I didn't do that. I have a calculator that, if you divide 1134218 by 1135620, you get .9987654321...

Then, by using a button that changes decimal fractions to common fractions, it gives the answer 809/810.

Dividing 1134218 by 809, the result is 1402, which is 701 x 2. Then, I went to an online list of prime numbers and finding 701, I knew that I was finished.

Please use graphs in your explanation. and explain thoroughly. Thank you so much!

Twenty one.

Matt would have two apples and a law suit for Tris

fate will decide ur life

√-1

there

Using the Ratio Test ( where abs = absolute value), we have

L = lim n →∞   abs [((n + 1)³ x²⁽ⁿ⁺¹⁾ ) / 5ⁿ⁺¹] * [ 5ⁿ / (n³ * x²ⁿ) ]   

L = lim n →∞   abs [[ (n+1)³ x² ] / [5 n³]]

L =(1/5) (x² ) *  lim n →∞  [ (n+1)³] /  n³ ] 

Note that  lim n →∞   [ (n+1)³] /  n³ ]  = 1      ......so we have

L = (1/5) (x² )

So if 

(1/5)(x²) < 1     the series converges  ....  and if (1/5)(x²) > 1 the series diverges

Put another way ..... if

(x²) < 5     the series converges  ....  and if (x²) > 5 the series diverges

However....the radius of convergence requires an exponent of 1 on the"x".....so we have

√(x²) < √5   →  abs (x) < √5     and   √(x²) > √5   →  abs (x) > √5 

So the radius of convergence is  R = √5

I believe this is correct......but it has been awhile since I've done this.........if anyone sees any mistakes.....feel free to provide corrections  !!!

Just enter it straight into an calc.

on the site calc 8C5 is entered as    nCr(8,5)

uhh 1? 

2-1=1