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It simlifies to this:

(2 b^12 c^14)/3

It should be worth now $220.50.

Also, you made a mistake in giving R=6.4 x 10^5. It should be 6.4 x 10^6.

(7*(-3+5)-2/(-8-(-6))+15       simplify everything in the parentheses within the parentheses, first.....

(7*(2) - 2/(-8 + 6) )  + 15 =

(7*(2) - 2/(-2) ) + 15  =        perform the multiplications/divisions from left to right before any additions/subtractions

14 - (-1)  + 15  =    simplify

14  + 1 + 15 =  

30

Use the cosine inverse......for instance, suppose we have....

cosx = (1/2)   to find x, use the cosine inverse.....

cos^-1(1/2)  = x =  60°

[The onsite calculator uses "acos"  for the cosine inverse......hit the "2nd" button to access it ]

I'm assuming this is :

(5/4)x=15/12        Note....15/12 =  5/4

So

(5/4)x = 5/4     and it's obvious that x = 1

I think you must mean  mg = GmM/R²   (as F = mg and F = GmM/R²), so:

M = gR²/G

But you need to be careful with units.  G = 6.67810^-11 m³/(kg.s²), g = 9.8 m/s², but R = 6.4*10⁶ m

M = 9.8*(6.4*10⁶)²/(6.67*10^-11) = 6.018*10²⁴ kg

Yep, Melody, I gotta' give you this one..I got the same answer when I thought about it......my original answer was garbage  !!!!

It equals 4

2x +3y=12      subtract 2x from both sides

3y =   12 - 2x       divide both sides by 3

[12 - 2x] / 3   = y

I don't see any equations........!!!!!

Remember that  .....   a^-n =  1/aⁿ

So, for example,  10^-3 =  1/10³  =  1/1000

Thx

Working this in one variable......let x be the number of goats and 23 - x  be the number of chickens

And the number of goats times the legs on each plus the number of chickens times the legs on each = 74.....so.....mathematically, we have.......

x(4)   + (23 - x) (2)   = 74    simplify

4x - 2x + 46   = 74

2x + 46 = 74    subtract 46 from both sides

2x =  28      divide by 2 on both sides

x = 14       this is the number of goats

(23 - x) = (23 - 14) =  9   =  the number of chickens

The solution is that they have:

9 chickens and 14 goats=23 animals, since,

(9 x 2) +(14 x 4)=74 legs

THX

2 + 1/2 =   5/2

6 + 2/3 = 20/3     ....so.....

(5/2) /  (20/3)   =    (5/2) x (3/20) =  (5/20) x (3/2)  =  (1/4) x (3/2) =  3/8

Your question is NOT clear to me. What's that 1X0 mean? Please clarify?

You are looking at an answer of 48 3/10.=48.3

Just divide Kilometers travelled by the hours, which will give you the average speed per hour!.

Simplify 4x-3, It's irreducible!

Here's one way......

Type in 280     ......hit the x^y  key     .........type in  .....   (1/5)       hit the " = "    key

Just subtract the smaller number from the big one!!!!!!!!!!!!!!!!!!!.

If you are using the online calculator on this site, then enter 280, then a key labled "x^y", then open a bracket ( 1/5) and then press = sign. You should get a number like=3.086253576....etc.

y=3x^3-192

To find the y intercept, set x = 0     and we have     y = 3(0)^3 - 192 =  -192 ........so the y intercept is:  (0, -192)

To find the x intercept(s), set y = 0

0 = 3x^3 - 192         divide both sides by 3

0 = x^3 - 64        add 64 to both sides

64   = x^3        take the cube root of both sides

(64)^(1/3) = x  =  4

Here's a graph :   https://www.desmos.com/calculator/gorvg2ckku