Answer:
The answer is 1920, right? Here is how-
The numbers must contain at least three digit and can go above that which means the answer has 3 4 5 and 6 digits all together.
For three digits , there will be 6*5*4 = 120
For 4 Digits, There will be 6*5*4*3=360 possible numbers
For 5 digits , there will be 6*5*4*3*2 = 6! = 720
For 6 digits, there will be 6*5*4*3*2*1 = 6! = 720
<Note- the digits are non repeating as the question said it to be “different digits” >
Now add them up = 120+360+2*720 = 1920
Step-by-step explanation:
Solve the equation:
3e^(2x + 1) = 12
e^(2x + 1) = 12/3
e^(2x + 1) = 4
2x + 1 = ln(4)
2x + 1 = ln(2^2)
2x + 1 = 2 ln(2)
2x = 2 ln(2) - 1
x = [ 2 ln(2) - 1 ] / 2 <----- this is the answer.
________
Checking:
2x + 1 = 2 ln(2)
2x + 1 = ln(4)
e^(2x + 1) = e^[ ln(4) ]
e^(2x + 1) = 4
3e^(2x + 1) = 3 * 4
3e^(2x + 1) = 12 (checked)
I hope this helps. :-)
Answer:
3.9 pints
Step-by-step explanation:
Given:
Caroline uses 6.5 pints of blue paint and white paint to paint her bedroom walls.
2/5 of this amount is blue paint, and the rest is white paint.
To find :
How many pints of white paint did she use to paint her bedroom walls?
Solution:
Caroline uses pints of blue paint and white paint = 6.5
Amount of blue paint out of 6.5 pint =
=
Amount of blue paint = 6.5 - 2.6 = 3.9 pints
Therefore, 3.9 pints of white paint she used to paint her bedroom walls.
7 goes into 6,300 900 times so your answer is 6,300