$\sqrt{x} 3$ is a irrational number; whatever you do to a irrational number except subtract itself or divide by itself or a multiple of itself will always result in another irrational number.

6 0

3 years ago

At the moment a hot cake is put in a cooler, the difference between the cake's and the cooler's temperatures is 50\degree50°50,

Len [333]

Answer:

$D(t)=50\cdot (0.8)^{t}$

Step-by-step explanation:

The equation for exponential decay function is given as:

$D(t)=a(1-r)^{t}$

where:

D(t)= difference in temperature t=time

r=rate of change

a =initial value of the temperature

From the given problem:

Initial Temperature,a=50°C

Rate of Decay,r= $\frac{1}{5}$

Therefore the function for the difference in temperature is given as:

$D(t)=50(1-\frac{1}{5})^{t}$

$D(t)=50\cdot (\frac{4}{5})^{t}$

We can convert $\frac{4}{5}$ to decimal and write the function as:

$D(t)=50\cdot (0.8)^{t}$

7 0

3 years ago

Read 2 more answers

What is the value of x in the equation 2(6x+4) - 6+ 2x - 3(4x+3)+1?

gizmo_the_mogwai [7]

Answer:

The question is incorrect. if you are going to solve an equation for x you need to set it equal to something.

8 0

3 years ago