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denpristay [2]
3 years ago
5

PLZ HELP!!! I'M BEGGING YOU!!! A hero is fighting with a dragon. At first, the dragon has three heads but each time the hero cho

ps off a head the dragon grows three in its place. How many heads does the dragon have after n chops?
Mathematics
2 answers:
Serga [27]3 years ago
8 0

Answer:

n = 3x

Step-by-step explanation:

Readme [11.4K]3 years ago
4 0

Answer:

  • h(n) = 3 + 2n

Step-by-step explanation:

  • Initial number of heads is 3
  • Each chopped head is replaced with 3 heads

Let the number of chops is n and h(n) is the number of heads.

<u>After the first chop and consecutive chops the number of heads are:</u>

  • h(1) = 3 - 1 + 3 = 3 + 2*1
  • h(2) = 3 + 2 - 1 + 3 = 3 + 2*2
  • h(3) = 3 + 2*2 -1 + 3 = 3 + 2*3
  • ...
  • h(n) = 3 + 2n
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What is the value of y?<br> 3/3 units<br> 53 units<br> 9 3 units<br> 12/3 units
Len [333]

Answer:

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Using the Pythagoras theorem for triangle MTU,

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8 0
4 years ago
Read 2 more answers
3^4x-5=(1/27) PLEASE HELP I AM IN TEARS
g100num [7]
 x = 136/2187 = 0.062

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : 

                     3^4*x-5-(1/27)=0 

<span>Step by step solution :
</span><span>Step  1  :</span> 1 Simplify —— 27 <span>Equation at the end of step  1  :</span><span> 1 (((34) • x) - 5) - —— = 0 27 </span><span>Step  2  :</span>

<span>Equation at the end of step  2  :</span><span> 1 ((34 • x) - 5) - —— = 0 27 </span><span>Step  3  :</span>Rewriting the whole as an Equivalent Fraction :

<span> 3.1 </span>  Subtracting a fraction from a whole 

Rewrite the whole as a fraction using <span> 27 </span> as the denominator :

81x - 5 (81x - 5) • 27 81x - 5 = ——————— = —————————————— 1 27

<span>Equivalent fraction : </span>The fraction thus generated looks different but has the same value as the whole 

<span>Common denominator : </span>The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

<span> 3.2 </span>      Adding up the two equivalent fractions 
Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

(81x-5) • 27 - (1) 2187x - 136 —————————————————— = ——————————— 27 27 <span>Equation at the end of step  3  :</span> 2187x - 136 ——————————— = 0 27 <span>Step  4  :</span>When a fraction equals zero :<span><span> 4.1 </span>   When a fraction equals zero ...</span>

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the <span>denominator, </span>Tiger multiplys both sides of the equation by the denominator.

Here's how:

2187x-136 ————————— • 27 = 0 • 27 27

Now, on the left hand side, the <span> 27 </span> cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :
   2187x-136  = 0

Solving a Single Variable Equation :

<span> 4.2 </span>     Solve  :    2187x-136 = 0<span> 

 </span>Add  136  to both sides of the equation :<span> 
 </span>                     2187x = 136 
Divide both sides of the equation by 2187:
                     x = 136/2187 = 0.062 

One solution was found :                  <span> x = 136/2187 = 0.062</span>
8 0
3 years ago
Read 2 more answers
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