All Answers 355980 Answers

Let the width =W

The length =2W + 1

W x [2W + 1] = 42, solve for W

W =~4.34 meters - the width of the rectangle

L =2 x 4.34 + 1 =~9.68 meters - the length of the rectangle.

3*10^12/5*7^7*0

\(\frac{3\times 10^{12}}{5}\times 7^7\times 0\)

\(=6\times10^{11}\times823543 \times 0 =0\)

\(4.941258 \times10^{17}\times0\LARGE=0\)

  !

\(\)

u click the fraction button lol

Solve for x:
x^2 + x + 5 = 90

Subtract 5 from both sides:
x^2 + x = 85

Add 1/4 to both sides:
x^2 + x + 1/4 = 341/4

Write the left hand side as a square:
(x + 1/2)^2 = 341/4

Take the square root of both sides:
x + 1/2 = sqrt(341)/2 or x + 1/2 = -sqrt(341)/2

Subtract 1/2 from both sides:
x = sqrt(341)/2 - 1/2 or x + 1/2 = -sqrt(341)/2

Subtract 1/2 from both sides:
Answer: |x = sqrt(341)/2 - 1/2        or        x = -1/2 - sqrt(341)/2

3x-24=2x re-arrange

3x - 2x = 24

x = 24

Always give an example.

n (n +1)=n + n+ 1 + 29, solve for n

n=6, and 6+1 =7

6 x 7 =42

6 +7 =13 + 29 =42

0.008

Sorry Tony!. I only have ONE solution for you!.

Solve for x:
x/(x - 3) = (2 x)/(x + 6)

Cross multiply:
x (x + 6) = 2 x (x - 3)

Expand out terms of the left hand side:
x^2 + 6 x = 2 x (x - 3)

Expand out terms of the right hand side:
x^2 + 6 x = 2 x^2 - 6 x

Subtract 2 x^2 - 6 x from both sides:
12 x - x^2 = 0

Factor x and constant terms from the left hand side:
-(x (x - 12)) = 0

Multiply both sides by -1:
x (x - 12) = 0

Split into two equations:
x - 12 = 0 or x = 0

Add 12 to both sides:
Answer: |x = 12        or        x = 0

Coin: Chances of getting a head is: 1/2

Dice: Chances of getting a total of 2 is:1/6 x1/6 =1/36

         Chances of getting a total of 4 is:1/36 + 1/36 + 1/36 =3/36 =1/12

So:1/2 x [1/36 + 1/12] =1/18, or A.

Moderators: Please verify this. Thanks.

21 ooooohhhhhhhh

Yes 🙂

with a plus sign

Congrats. You got it.

Congrats. You got it!!.

0.3 is a decimal, as is 0,3. 

The thing you use to mark a decimal depends on your location in the world.

US uses the period to mark decimals (.)

Europe and other places use the comma to mark decimals (,)

both 0.3 and 0,3 equal 3/10

T=half-life

250 = 600.2^-(20/T), solve for T

T =~15.83488.......Years.

1/4 ⁵= 1/4 * 1/4 * 1/4 * 1/4 * 1/4= 1/16 * 1/16 * 1/4 = 1/256 * 1/4 = 1/1024

So 1/4 ⁵= 1/1024

(1/4)^5 = 1/4 x 1/4 x 1/4 x 1/4 x 1/4  =  1/(4x4x4x4x4) = 1/1024

Another way:

Remaining = Original ( e^(-kt) )        where 'k' is  a decay constant

250 = 600 e^(-k * 20)        yields k = .0437734

1/2 of 600 is 300 so substitue to find 't1/2'

300 = 600 e^(-.0437734 *t) 

ln (300/600) = -.0437734 * t

t= 15.835 years                           (t1/2)

12 + 1 = answer

23.34%

490 divided by 18.