Ask your Mom!!!!?

21!

whats a histograph:

The process of describing or creating a picture of biological tissues and cells

Wrong.  

The numbers you insert also have to be considered as being part of the sentence.

So your answer is not right... Sorry. It was worth a try though...

is it all one:

1

1

1

1

1

1

1

1

etc

=4.999×10^18 km  (kilometers)

If you mean the eighth root of 27 you can just enter 27^(1/8) in the calculator, to get 1.509803648477105

.

If X is position at time t and V is velocity, then V = 1 (independent of time).

V = (X_t+deltat - X_t)/deltat 

V = (t + deltat + 2 - [t + 2])/deltat

V = deltat/deltat

V = 1

Assuming the density and specific heat capacity stay essentially constant over the temperature range of interest you can just do

T = (1.4*22 + 0.2*50)/1.6 = 25.5°C

.

I believe that Guest's answer should be 1/3  rather rhan 0.3

This could also be :

20 - 5x = 5    subtract 20 from both sides

-5x  = -15   divide both sides by -5

x = 3

3/4(x+2)=2x+9     multiply both sides by 4

3(x + 2) = 8x + 36  simplify

3x + 6 =  8x + 36      subtract 36, 3x from both sides

-30  = 5x     divide both sides by 5

-6  = x

(20-5)x=5

15x=5

x=0.3 

Step-By-Step, we have

2(x+4) = 2(x+2)+x+5+2x      simplify and combine like terms

2x + 8  = 2x + 4 + 3x + 5

2x + 8  = 3x + 9       subtract 2x, 9 from both sides

-1  = x

Thanks, EinsteinJr.    .....that brownie looks pretty good   !!!!

V_cube =  s³

130  = s³        take the cube root of both sides

(130)^1/3 = s ≈  5.065  in ≈ 5.07 in  [ rounded]

I checked the answer in my book, and you're right. You deserved 20/20 and a brownie :

Congratulations

x = -1

Hallo

Here's the last one:

Evaluate h(9^-1)

9^-1 =  1/9

So h(1/9)  =  3 - ( 1/9 + 4) / (1/9 - 7)  =   3  - (37/9) / (-62/9)   =  3 + (37/62)  =   223/62

Here's the second one:

Evaluate [h(9)]^-1

h(9)  = 3 - (9 + 4)/(9 - 7)  =   3 - 5/2   =  1/2

So .... [h(9)]^-1  =   (1/2)^-1  = 2

This is a good one  !!!!

Let the student's age be x.......let the years that have elapsed since the teacher was the student's current age = y....so....

40 - y  = x     →   x + y = 40   (1)

  and

4(x - y)  = 40  →  x - y = 10   (2)

Add equations 1 and 2

2x = 50      divide both sides by 2

x = 25   and that's the student's age now

And x + y  = 40    so    25 + y = 40     so y = 15  years have elapsed since the teacher was the same age as the student is now

Proof

15 years ago, the student was 10......and the teacher was 25, the same age as the student is now

And the teacher is now 4 times as old as the student was then

Add up all the expenses:

72,000 + 47,500 + 65,000 +(3 X 10,000)=214,500 Total costs and expenses of the stadium

482,000 - 214,500=$267,500 Stadium profit margin for the month.

Hallo

Density=mass/volume

19.3=564/volume

volume=564/19.3

volume=29.22 ml

Oh Tr , your ways are getting so old, you only capture the bases , when will you capture us, always fighting, always fighting, learn something from me, such a peaceful quiet girl ;)