Using a trigonometric identity, the cosine of the angle is given as follows:
<h3>What is the trigonometric identity that relates the sine and the cosine of an angle?</h3>
It is given by:
In this problem, the sine is:
Then:
On quadrant I, the cosine is positive, hence:
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Answer:
Step-by-step explanation:
The parent function denotes the simplest function (free from any horizontal/vertical stretch/compression) that represents a family of functions. In this case the term 1/4 indicates a horizontal stretch and should be removed to find the parent function of . From here we're in simplest form, since or others represent a completely different family of functions and cannot be obtained from horizontal/vertical stretches/compressions.
8.1x - 4.5y = 5.4.....subtract 8.1x from both sides
-4.5y = -8.1x + 5.4...divide both sides by -4.5
y = (- 8.1/-4.5)x + 5.4 / -4.5...simplify
y = 1.8x - 1.2 <==
Answer:
27.9 dollars
Step-by-step explanation:
2.70= 15 percent
2.70x2=5.4=30 percent
5.4+2.70=8.1=45 percent
8.1x2=16.2=95 percent
95 percent + 15 percent=18.9
18.9=105 percent
in order to subtract 5 percent we need to find 5 percent by dividing 2.70 by 3
which = .9
18.9+9=27.9
100 percent is 27.9 dollars
Answer:
Step-by-step explanation:
Using the rules of exponents
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Given
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