The answer is the last choice
To solve an exponential equation, take the log of both sides, and solve for the variable. Example 1: Solve for x in the equation . Ln(80) is the exact answer and x=4.38202663467 is an approximate answer because we have rounded the value of Ln(80).. Check: Check your answer in the original equation.
Answer:
Step-by-step explanation:
y-8=3/5(x-5)
multiply 3/5 times x and -5
y-8=3/5x-3
then add 8
y=3/5x+5
Answer:
The correct option is (B)
.
Step-by-step explanation:
The exponential decay function is as follows:

Here,
<em>y = </em>final value
<em>a</em> = initial value
<em>r</em> = decay rate
<em>t</em> = time taken
It is provided that:
<em>a = </em>150 mg
<em>r</em> = 9% = 0.09
Then the next hour the amount of caffeine in the body will be:

Then after two hours the amount of caffeine in the body will be:

Similarly after 10 hours the amount of caffeine in the body will be:

Then the inequality representing the range of the exponential function that models this situation is:

Thus, the correct option is (B).