Answer:
(a) A comet revolves around a star
It's the only one that makes sense
Step-by-step explanation:
Hope this helps you!!!!! :D
Answer:
69
Step-by-step explanation:
69 squared is 4761
Answer:
its three good sir
Step-by-step explanation:
Answer: x = 75/2
Step-by-step explanation:
First, separate the 1/3d and 10 by subtracting 1/3d to the right side so the equation is now: 10 = 3/5d - 1/3d
Next, Make the two fractions have a common denominator: (3/5 = 9/15) and (-1/3 = -5/15) and solve to get 4/15x
Then, your equation should be 10= 4/15x
So now multiply the 10 by 4/15's reciprocal (15/4) to get the variable x by itself: 10 × 15/4 or
(10×15) / (4×1) to get x = 150/4 now simplify
4 can go into 150 twice so the simplified answer is 75/2 or 37.5 in decimal form
The answer is the last option, f(x) = 0.8 * (2^x)
The first strong indicator is that the fourth pair of data (0, 0.8) indicates that f(0) is 0.8
Given that a^0 = 1, means that the coefficient of the function has to be 0.8 and you discard the first and the third options, because for them two f(0) = 2.
AT the end what you have to do is to replace the values of x in equations and compare the results.
So, for the fourt opion you get:
x f(x) = 0.8 * (2^x)
-2 0.8 * (2^-2) = 0.8 / 4 = 0.2
-1 0.8 * (2^-1) = 0.8 / 2 = 0.4
0 0.8 * (2^0) = 0.8 * 1 = 0.8
1 0.8 * (2^1) = 0.8 * 2 = 1.6
2 0.8 * (2^2) = 0.8 * 4 = 3.2
As you can see this results are the same of the table of the question, so the function is f(x) = 0.8 (2^x).