The expression that represents the number of days until only 10% remains is
T((d) 10%) = 100 • (1/2)^3.322
Answer:
b & d
Step-by-step explanation:
Answer:
Statements 3, 4 and 5 are true.
Step-by-step explanation:
x^2 - 8x + 4
Using the quadratic formula:
x = [ -(-8) +/- √((-8)^2 - 4*1*4)] / 2
= (8 +/- √(64 - 16)) / 2
= 4 +/- √48 / 2
= 4 +/- 4√3/2
= 4 +/- 2√3.
So the third statement is true.
Converting to vertex form:
x^2 - 8x + 4
= (x - 4)^2 - 16 + 4
= (x - 4)^2 -12
So the extreme value is at (4, -12)
So the fourth statement is true.
The coefficient of the term in x^2 is 1 (positive) so the graph has a minimum.
Answer:
With Two points is enough to describe this graph
![\left[\begin{array}{ccc}\frac{4}{6} &0\\0&-4\\\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D%5Cfrac%7B4%7D%7B6%7D%20%260%5C%5C0%26-4%5C%5C%5Cend%7Barray%7D%5Cright%5D)
Step-by-step explanation:
Interception with Y axis (y=0), thus we have the following equation:


The point for this is (4/6 , 0)
Interception with x axis (x=0), thus we have the following equation:


The point for this is (0, -4)