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Troyanec [42]
2 years ago
12

Given that sinθ=-3/4 in quadrant 4 find cosθ

Mathematics
1 answer:
Gekata [30.6K]2 years ago
4 0

Step-by-step explanation:

sin∅=-3/4 in 4 quadrant which sine is negative there

using soh cah toa

sin=opp/hyp

where our opp=-3 and our hyp=4

using pythagoras theorem

hyp²=opp²+adj²

(4)²=(-3)²+adj²

16=9+adj²

16-9=adj²

adj²=7

adj=√7

from soh cah toa

cos∅=adj/hyp

cos∅=√7/4

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If the demand function for a commodity is given by the equation
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q=26.92 p=31.13

Step-by-step explanation:

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sdas [7]

Answer:

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If we look at our first inequality, we can write it as:

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This is parabola, anything that is in the graph of the parabola or below will be a solution for this inequality.

Then the solutions of the system, are the ones that are in the region of solutions for both inequalities.

You can see the graph below, where both regions are graphed. The intersection of these regions is the region of the solutions for the system of inequalities:

by looking at the graph, we can see a lot of points that are solutions, like:

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8 0
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Alex Ar [27]

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