Answer:
-16
Step-by-step explanation:
im just taking a guess.
x+4>-12
-4 -4
---------------
4's cancel out and -12+-4=-16
Again this is just a guess.
Answer:
What is a reasonable domain for the two functions?
x > 0
Answer: For lines to be parallel, the slope has to be the same.
For lines to be perpendicular, the slope has to be the negative reciprocal. 4
x
+
2
y
=
7
2
y
=
−
4
x
+
7
y
=
−
2
x
+
7
/2
Compared to
: y
=
2
x
−
3
Step-by-step explanation: Just a good guess.
Answer:
Option C is correct
Step-by-step explanation:
Given: A plane is descending onto the runway with an angle of depression of 55°. Also, it has 2.8 miles to go before landing.
To find: current altitude of the plane
Solution:
Consider the attached image.
In ΔABC,
(Alternate interior angles)
For any angle
,
= side opposite to angle/side adjacent to angle

Put 

So, the current altitude of the plane is 4 miles.