3 years ago

Please help the image provides the question.

1 answer:

8 0

Part A:
at the time x=4, the elevation = 3
at the time x=8, the elevation = 6
and 6-3=3in.
PART A ANSWER= 3in.

Part B:
the time period will be when the slope (y=mx+b) is the steepest. this would be from t=14 to t=18.
so, y=7.5-3= 4.5
ANS=4.5

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The legs of a right triangle are lengths x and x square root 3. The cosine of the smallest angle of the triangle is _____.

ICE Princess25 [194]

AC=x, BC=x√3, AB is a hypotenuse (look at the pic below)
x√3>x, consequently ∠B<∠A and we have to find cosB, which is (x√3)/AB.
Let's find AB:
AB=√(x²+(x√3)²)=√(x²+3x²)=√(4x²)=2x
Thus, cosB is:
cosB=(x√3)/(2x)=√3/2