Answer - D
Explanation - In 2009 the value is 66.74 whilst in 2010 the value is 70.54. Because the line appreciates (increases) from 2009, the final answer will be a positive so you can knock off the first two answers. Now you just minus the value in 2010 from the value in 2009 which will give you 3.80 Dollars/Year
Answer:
The correct option is;
[2.5, ∞)
Step-by-step explanation:
The given exponential equation can be expressed as follows;
10,000 × 4ˣ ≥ 320,000
Therefore we have;
4ˣ ≥ 320,000/10,000
4ˣ ≥ 32
㏒(4ˣ) ≥ ㏒(32)
x·㏒4 ≥ ㏒(32)
x ≥ ㏒(32)/㏒4
∴ x ≥ 2.5
Therefore, the interval the colony will have at least 320,000 bacteria is where x ≥ 2.5 or 2.5 ≤ x < ∞ which gives, the interval [2.5, ∞)
X= -9.375. 0.06x-0.14x=13.48-12.73. -0.08x=0.75
Answer:
The first step is to find a number that when subtracted from 2 gives you 2.
Step-by-step explanation:
The algebraic part of this problem would be to add the -2 (adding 2 to both sides) to both sides, so
first x-2=2, then x-2(+2)=2(+2) which would give us,
x=4
*note: the parenthesis are just to show that we are adding the 2, to make it more understandable.
Answer:
8
Step-by-step explanation:
Make x the answer the the equation by swapping the answer with x
6+2=x
Then solve and plug in the variables
8=x
8-6=2
