What are the answer choices??
Answer:
a=1
b=4
c=-1
Axis of cemetry and vertex:x=-2
Step-by-step explanation:
x=-b/2a
x=-4/2(1)
x=-2
Given both the distance from the tree and the height of the tree, the angle of elevation can be obtained using the tangent formula, tangent theta = opposite side / adjacent side. In this case, opposite side = the tree's height and the adjacent side is the distance of Cisco to the tree. Therefore, the angle of elevation equals 40.03 degrees.
We know he spent 5 sixths which is 50 minutes
Ten percent of 50 is 5
This means he spent 3 quarters of an hour in the office
Answer:
It is A.
Step-by-step explanation:
Complementary angles sum to 90 degrees.
If both angles are 45 degrees they are both equal and complementary.