First, note that
is always positive (except for x=0), so
must be always negative.
Thus, the only plausible graphs are 1 and 3 since they are below the x-axis.
Now,
and
are only defined for x≥0, because only for these x'es we can take the square root.
Note that the third graph has domain (-infinity, 0], so it is not the right one, while 1 is ok.
Answer: first graph
Answer:
2sinθ + cosθ = 2
Step-by-step explanation:
12 cos θ - 16 sinθ = 0
=> 3 cos θ -4 sin θ = 0
=> tanθ = 3/4
let P = 3x
B = 4x
=> H= 5x
=> sinθ = P/H = 3/5
cosθ = B/H = 4/5
2sinθ + cosθ
= 2× 3/5 + 4/5
= 6/5+4/5
= 10/5
= 2
=> 2sinθ + cosθ = 2
The price of third MP3 player is $58.40
Step-by-step explanation:
Given,
Cost of one MP3 palyer = $56
Cost of another MP3 player = $62
Average price of MP3 player = $58.80
Let,
Cost of third MP3 player = x
Average = 
Multiplying both sides by 3
The price of third MP3 player is $58.40
Keywords: average, division
Learn more about division at:
#LearnwithBrainly
Answer:
Step-by-step explanation:
Given the polynomials:
On Inspection
By the Spanning Theorem
If one vector in S is a linear combination of the others, we can delete it and get a subset (one vector smaller) 
that has the same span.
Therefore, since 
are linearly independent because 
cannot be written in terms of 
.
Therefore, 
