2x + 4 1/5 = 9
2x = 9 - 4 1/5
2x = 5 1/5
2x divided by 2 = x
5 1/5 divided by 2 = 13/5 (2 3/5, or 2.6)
x = 13/5 (2 3/5, or 2.6)
Let us assume then that the center is the origin. If the major axis is 18, then a = 9 and a^2=81. If the minor axis is 16, then b = 8 and b^2=64. Now you can write the equation. Remember that this ellipse is vertical and so a^2 goes under y^2
Answer:
Step-by-step explanation:
For this exercise you need to remember the following Trigonometric Identity:
You must observe the figure given in the exercise.
You can notice that the given triangle UVW is a Right triangle (because it has an angle that measures 90 degrees).
So, you can identify in the figure that:
Knowing these values, you can substitute them into :
Now you must evaluate:
Finally, rounding to the nearest hundreth, you get:
Answer:
x-intercepts: (-3.08, 0) and (1.08, 0)
Step-by-step explanation:
Given:
The function is given as:
In order to find the x-intercept, we need to equate the given function to 0 as x-intercept is the point where the 'y' value is 0. So,
Now, this is a quadratic equation of the form
We find the solution using the quadratic formula,
Here,
Now, the solutions are:
Therefore, the x-intercepts are (-3.08, 0) and (1.08, 0)
A. 23°
because 85°-62°=23°
*Hope this helped! :)