Answer:
x = 1
Step-by-step explanation:
5-7x = 8-4x-6
5-7x = -4x+2
5 = 3x+2
3 = 3x
x = 1
We only need to find the heights of the 2 points on the flagpole and then subtract them. We have that AC and DC are related by the following trigonometric number: tan60=AC/DC. This is because ADC is a right triangle and AC is the opposite leg of the angle we know, while DC is the adjacent leg.

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Thus, we have calculated AC. The same remarks apply to the triangle BCD; However, now we get that tan30=BC/DC.

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Hence, the height of point B is 5 feet, while the height of point A is 15 feet. Their distance is 10 feet.
Answer:
A domain is a function in the complete set of possible values of the independent variable
Step-by-step explanation:
<span>There are several examples that can help one remember the definition of expand. To begin with, a balloon can expand when air or water enters it, depending on the type. Cookies often expand when baking due to the leavening agent used in the recipe. When we stretch our bodies, our muscles often expand.</span>