4 years ago

The system of equations is coincident.What are the missing values?

1 answer:

7 0

Coincident lines are lines that are the same.

In the beginning of both equations we have '4x' and '8x'.

Note that 8 / 4 = 2.

Multiply the rest of the numbers in the first equation by 2.

5y * 2 = 10y

8 * 2 = 16

So our 2nd line will be:

8x + 10y = 16

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Find sin 0, sec 0, and tan 0, where is the angle shown in the figure.

matrenka [14]

Answer:

$Let \ base = x\\5^2 = x^2 + 4^2\\25-16 = x^2\\9 = x^2\\x = 3\\\\\\opposite = 4\\adjacent = 3\\hypotenuse = 5\\Sin \theta = \frac{opposite}{hypotenuse} = \frac{4}{5} \\\\Cos\theta = \frac{adjacent}{hypotenuse} =\frac{3}{5}\\\\Tan \theta = \frac{opposite}{adjacent} = \frac{4}{3}$