9514 1404 393
Answer:
a(n) = 1/2(-8)^(n-1)
Step-by-step explanation:
The general term of a geometric sequence is ...
a(n) = a(1)×r^(n-1)
where a(1) is the first term, and r is the common ratio.
Here, the first term is a(1) = 1/2. The common ratio is the ratio of any two sequential terms: r = 32/-4 = -8. Then the explicit formula is ...
a(n) = 1/2(-8)^(n-1)
One because it becomes-5=u which is one answer
Answer:
The cost he will pay for 10 rides will be $70 and for r rides will be .
Step-by-step explanation:
The price of admission into the park is $20.The price for each ride is $5David takes 10 rides,So, the cost he will pay if he took 10 rides will be,If he had r rides,So, the cost he will pay if he took r rides will be,Therefore, the cost he will pay for 10 rides will be $70 and for r rides will be.
!!! hope this helps !!!!
Answer:
y = 2x + 3
Step-by-step explanation:
We can make 2 coordinate points and find equation of the line using the line formula.
We can say that at starting (0 months), there were 3 employees.
After 8 months, there were 19 employees.
<em>Let months be x points and number of employees be y points.</em>
Thus, 2 points would be:
(0,3) & (8,19)
Now, the equation of the line is given as:
Where m is the slope and b is the y-intercept
Let's find slope first with the formula:
Where
x_1 = 0
x_2 = 8
y_1 = 3
y_2 = 19
Thus, we have:
Slope =
Now we have:
y = 2x + b
To find b, we put (0,3) into the equation:
y = 2x + b
3 = 2(0) + b
3 = 0 + b
b = 3
So the equation of the line is:
y = 2x + 3
The first option is the answer you are looking for.