Tentukan himpunan penyelesaian dari persamaan berikut: 3y+15=5y-1

1 answer:

3 0

3y+15=5y-1
1. Subtract 5y from each side, so you are left with -2y+15=-1
2.Subtract 15 from each side, so you are left with -2y=-16
3. Divide both sides by -2. so you have y=8

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Serhud [2]

Answer:

i believe the answer would be y= -x-4

Step-by-step explanation:

a line that is perpendicular, will have and opposite reciprocal slope, so:

the slope of the line y=x-4 is 1, and the reciprocal of 1 is also 1.

now take the opposite of it, which is -1.

so the perpendicular line equation would be y=-x-4

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The angle of elevation of the sun is 24°. What is the length of the shadow cast by a person 1.82 m tall?

amm1812

Answer:

4.09 m

Step-by-step explanation:

Let the length of the shadow cast by a person be x m.

$\tan \: 24 \degree = \frac{height \: of \: person}{length \: of \: the \: shadow} \\ \\ 0.4452286853 = \frac{1.82}{x} \\ \\ x = \frac{1.82}{0.4452286853} \\ \\ x = 4.08778693 \: m \\ x = 4.09 \: m$