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21 21 21!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

-30a^5b^4c3/20a^3b

Simplify the following:
(-30 a^5 b^4 c^3 a^3 b)/20

The gcd of -30 and 20 is 10, so (-30 a^5 b^4 c^3 a^3 b)/20 = ((10 (-3)) a^5 b^4 c^3 a^3 b)/(10×2) = 10/10×(-3 a^5 b^4 c^3 a^3 b)/2 = (-3 a^5 b^4 c^3 a^3 b)/2:
(-3 a^5 b^4 c^3 a^3 b)/2

Combine powers. (-3 a^5 b^4 c^3 a^3 b)/2 = (3 a^(5+3) b^(4+1) c^3 (-1))/2:
-(3 a^5+3 b^4+1 c^3)/2

5+3 = 8:
-(3 a^8 b^(4+1) c^3)/2

4+1 = 5:
Answer: | 
| -(3 a^8 b^5 c^3)/2

19, if this is a joke (cause of the 9 + 10 not equaling 19) it's 21 -_-

Assuming 500 is the  first term, this is equivalent to  :

500  + (50)*3  - (15)*2   =

500 +  [ 150 ] - [30]  =

650  - 30  =

620

Haha Chris.

I answered first. 

log₃ 81 ^(-.2)  =

-.2 * log₃ 81  =

-1/5 * 4   =

-4 / 5

Log_3(81^-.2)

=-0.2log_3(81)

=-0.2log_3(3^4)

=-0.2×4log_3(3)

=-0.8×1

=-0.8

=-4/5

4^h = 1/64       note that 4³ = 64   and  1/ 4³  =  4^-3

So

4^h = 4^-3

And   h = -3

Remember that   sqrt( -1)   = i   ....so we have

sqrt(-28)  =

sqrt (-1 * 4 * 7)  =

sqrt (-1) * sqrt(4) * sqrt(7)  =

i * 2 * sqrt(7)   or    just     

2*sqrt(7) i

How do you find the square root of negative 28

Simplify the following:
sqrt(-28)

sqrt(-28) = sqrt(-1) sqrt(28) = i sqrt(28):
i sqrt(28)

sqrt(28)  =  sqrt(4×7)  =  sqrt(2^2×7):
i sqrt(2^2 7)

sqrt(2^2 7)  =  sqrt(2^2) sqrt(7)  =  2^(2/2) sqrt(7)  =  2 sqrt(7):
Answer: | 
| i×2 sqrt(7)

=2i sqrt(7)

a bicycle helmet prices at $25. if it is on sale for 15 percent off and there is a sales tax of 6 percent added to it, whats the final cost?

$25 X (1-.15)=$21.25 new sales price after 15% discount.

$21.25 X 1.06=$22.53 this is the final cost of the helmet.

Subtract the two populations then divide by 5years X 365 days. You should get between 15-16 people per day.

RESULTS: 

Partially incorrect! 

I don't know how to answer your +MATH+ question. 

Your attitude seems +ANGRY+, so please use this cat to calm yourself.

IMAGES:

or

-111 + 51p  =  -35(12p + 57)

Using the distributive property:

-111 + 51p  =  -420p - 1995

Adding 420p to both sides:

-111 + 471p  =  -1995

Adding 111 to both sides:

471p  =  -1884

Dividing both sides by 471

p  =  -4

GRAPH:

First, subtract the wrapping fee (because tax wasn't paid on the wrapping):  122.36 - 35.00  =  87.36

The equation now is:  (Price) + (7% of the Price)  =  87.36

                                       P + 0.07P =  87.36

                                             1.07P  =  87.36

--->  P  =  81.64

(Actually a total of 87.36 is impossible; if the original amount is 81.64, the tax will be 5.71, for a total of 87.35.

If the original amount is 81.65, the tax will be 5.72, for a total of 87.37.)

Assuming 30 grams....   

What is the problem?

One way of looking at this problem;

If you can mow 3/8ths of an acre in 45 minutes, she can mow 1/3rd of that amount in 15 minutes.

1/3 of 3/8  =  1/3 x 3/8  =  1/8th of an acre in 15 minutes.

Since 15 minutes is 1/4th of an hour, multiply what can be done in 15 minutes by 4:  1/8 x 4  =  4/8  or  1/2 of an acre.

2+2=6

This is an impossible situation:  -x + -x + x + x  =  0  and 0 doesn't equal 53!

The 7th term is 6 steps away from the first term. Going 6 steps from the original number, you will need to subtract 6 8's from 200:  200 - 6(8)  =  200 - 48  =  152