Answer:
x=6
Step-by-step explanation:
Given the x-intercepts of a parabola:
The equation of symmetry at the parabola's vertex is x=h
Where
In this case,
Therefore, the line of symmetry of the parabola is x=6 and is also the x-coordinate of the parabola's vertex.
Answer:
5.3333333
Step-by-step explanation:
She is correct because you can round 4.8 to 5 and .9 to 1 and take 5 ÷ 1 = 5
<h3>
Answer: 5t+15</h3>
This is equivalent to 5t+5*3
To get the answer, you multiply the outer term 5 by each term inside
5 times t = 5*t = 5t
5 times 3 = 5*3 = 15
Then you add up those products to get 5t+15.
This is using the distributive property.
Step-by-step explanation:
sec² x − 2 = 0
sec² x = 2
cos² x = ½
cos x = ±√½
x = π/4, 3π/4, 5π/4, 7π/4