The water level in a plastic pool changed by -8 gallons each hour due to small hole in the bottom. After 6 hours, the pool conta
2 answers:
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Question:
Solve for x: . Fill in both values for x below. Write the greater value for x in the first column.
Answer:
and
are the values for x.
Explanation:
The equation is
Subtracting both sides by 7,
Dividing both sides by 12,
Now, we shall write the equation by removing modulus by adding plus and minus on the other side of the equation.
or
Solving the equation , we get,
or
Thus, the solutions are and
Answer:
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Explanation:
The symbol is the greek letter theta. It's often used in trigonometry for angles.
In this case,
So,
You'll need to use a reference sheet or the unit circle to determine the value of cos(30). Or you could use a 30-60-90 triangle template.
When using the unit circle, look in the upper right quadrant (which is quadrant 1). The angle 30 degrees is in this quadrant. Locate the terminal point and note how is the x coordinate of the terminal point. This is due to
Side note: