9514 1404 393
Answer:
3
Step-by-step explanation:
The definition of an inverse function is ...
f^-1(f(x)) = x
Then ...
f^-1(f(3)) = 3
Answer:
Angle made by ramp with ground is ≈
Step-by-step explanation:
Diagram of given scenario is shown below.
Given that,
Horizontal Distance of Skateboard ramp is 
ft.
Height of Skateboard ramp is 
ft.
From figure,
It is forming a Right angle triangle 
.
In , 
and 
.
Clearly see that we need to find measure of angle 
.
Using Trigonometric ratio:
So, 
Then 
Therefore, Angle made by ramp with ground is ≈
Percent means per 100/ out of 100.
3/20= x/100
20*5=100
3*5=15
15=x
Final answer: 15%
Answer:
0 is part of the confidence interval, which means that there is not convincing evidence that the two population proportions are different.
Step-by-step explanation:
Based on a confidence interval for the difference of proportions, there will be significant evidence that the proportions are different if 0 is not part of the confidence interval for the difference of proportions.
In this question:
Confidence interval between -0.036 and 0.154
0 is part of the confidence interval, which means that there is not convincing evidence that the two population proportions are different.
Answer:
x=-1
Step-by-step explanation:
- subtract 8x and move it to the other side
- add one to the 7 you get 8
- divide the -8 by the 8 you got from adding 1 and 7
- your answer will be -1
