Answer:
D
Step-by-step explanation:
The formula we need to solve this is:
Where
is the distance from one focus to the vertex
is the second distance from another focus to same vertex
<u>Note:</u> Here, vertex point is the point on top. The common point from which the RED and BLUE line meets the 2 foci
is half the length of the major axis (which is 9 here since total major axis is given as 18)
<em>Now we can plug into the equation and solve:</em>
<em>
</em>
<em />
<em>D is the correct answer.</em>
Answer:
1
Step-by-step explanation:
5x=5
1x=1
x=1
Given the function
The inverse of the function is calculated by changing f(x) to y and making x the subject of the formula as follows:
We now change back the variables to get the function in the form of inverse function as follows:
Comparing this with Talib's work, we can see that he is correct except for the last line where he did not change the variable y back to x.
Therefore, the last line of his work made his inverse not to be correct.
Perpendicular lines in equations are negative reciprocals of each other. If you multiply two slopes together and they equal -1, they are perpendicular.
3 * -1/3 = -1 so the slope is -1/3.
Equations that have the same slope are parallel. If another line had a slope = to 3, then the line would be parallel to y=3x-1
Answer:
68 degrees
Step-by-step explanation:
If they tell you it's a right triangle, you automatically know one angle is 90 degrees. Since they've told you another angle is 22 degrees, the total number of degrees you have out of 180 is 112. Meaning, whatever's left is your third angle.
180 - 90 - 22
= 180 - 112
= 68 degrees
I hope this helps!
