Answer:
f(x) = 30 • 0.989x
Step-by-step explanation:
Given the data :
10 26.8
20 23.9
30 21.3
40 19
50 16.9
60 15.1
Using technology, the exponential model equation obtained by plotting the data is :
y = 30.068(0.989)^x
Based on the general exponential formula :
y = ab^x
y = predicted value
Initial value, a = 30.068
Rate = b = 0.989
The most appropriate model equation from the options given is :
f(x) = 30 • 0.989^x
Hi there!

We can begin by setting the two expressions equal to solve for t:
2t - 1 = 5t
Subtract 2t from both sides:
-1 = 3t
Divide both sides by 3:
t = -1/3
Plug in this value of t into x(t) and y(t):
x(-1/3) = 2(-1/3) - 1 = -2/3 - 1 = -5/3
y(-1/3) = 5(-1/3) = -5/3
Thus:
(-5/3, -5/3) are the corresponding coordinates.
Your answer is 14/5. hope that helps :)
Answer:
= 
Step-by-step explanation:
Sum means finding the total of something. We can do this by using addition.

In this problem, we will add the numerators and the denominators.


So, your answer is letter choice B.
Perpendicular means the slope has to be the negative reciprocal of the slope of the line it is perpendicular to. (0,1) is a y-intercept so you just have to take the slope. Make it a negative reciprocal and plug in the y-intercept in the equation.
y = -8x + 1