Your first steps are correct. Mult. the given fraction by (1+sqrt(5)) / (1+sqrt(5)).

Result: 8(1 + sqrt(5) ) 8(1 + sqrt(5) )
------------------- = ----------------------
1 - 5 -4

Must keep that denominator (-4).

8 0

3 years ago

What is x^4+25 factored

OLga [1]

(x^2+5)(x^2-5)

I hope this helps :)

3 0

3 years ago

Read 2 more answers

A florist sold bouquets of red roses to 15 of the first 20 customers who came into his shop. What is the experimental probabilit

Oksanka [162]

In fraction that would be 3/4 because 15/20 simplified would be three quarters.
If thats not the answer, message me back and I will go out of my way to figure out the correct one. Thats my policy :)

7 0

3 years ago

The rate at which a quantity of a radioactive substance decays is proportional to the quantity of the substance. The constant of

Butoxors [25]

Answer:

$\frac{dN}{dt} =$ λN N(0) = 6

N(t) = N₀e^(λt)

Applying the inital value condition

N(t) = 6e^(λt)

Step-by-step explanation:

Summarizing the information briefly and stating the variables in the problem.

t = time elapsed during the decay

N(t) = the amount of the radioactive substance remaining after time t

λ= The constant of proportionality is called the decay constant or decay rate

Given the initial conditions

N(0) = N₀ = 6

The rate at which a quantity of a radioactive substance decays ( $\frac{dN}{dt}$ ) is proportional to the quantity of the substance (N) and λ is the constant of proportionality is called the decay constant or decay rate :

$\frac{dN}{dt} =$ λN

N(t) = N₀e^(λt) ......equ 1

substituting the value of N₀ = 6 into equation 1

N(t) = 6e^(λt)

3 0

3 years ago