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Darina [25.2K]
3 years ago
6

Determine the value of y for y=5x

Mathematics
2 answers:
Ksivusya [100]3 years ago
7 0

Answer:

Step-by-step explanation:

Here the function is y = 5x.

If x = -2, y = 5(-2) = -10;

If x = 0, y = 5(0) = 0; and

If x = 9, y = 5(9) = 45

And so on

Ilia_Sergeevich [38]3 years ago
5 0
You just multiply the x value by 5
-2(5)=-10
-1(5)=-5
0(5)=0
3(5)=15
6(5)=30
9(5)=45
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<u>Trigonometric ratios</u>

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\sf \implies \cos(ABD)=\dfrac{BD}{19.9}

\sf \implies \angle ABD=\cos^{-1}\left(\dfrac{24.3\cos (38^{\circ})}{19.9}\right)

\sf \implies \angle ABD=15.79446612...^{\circ}

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\sf \implies \angle ABC=\angle ADB + 38^{\circ}

\sf \implies \angle ABC=15.79446612...^{\circ}+ 38^{\circ}

\sf \implies \angle ABC=54^{\circ}\:\:(nearest\:degree)

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Use the tan trig ratio to find angle CAD:

\implies \sf \tan(CAD)=\dfrac{4.9}{7.4}

\implies \sf \angle CAD=\tan^{-1} \left(\dfrac{4.9}{7.4}\right)

\implies \sf \angle CAD=33.5110188...^{\circ}

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\sf \implies \angle BAD=13^{\circ}+33.5110188...^{\circ}

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\sf \implies \angle ABC=43^{\circ}\:\:(nearest\:degree)

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