Answer:
Positive
Step-by-step explanation:
Since there are two x-intercepts, -2 and 2, there is a positive discriminant. If the parabola was below the x axis and opened downwards, the discriminant would be negative.
The standard notation would be 5,380.67. Hope this helps!<span />
Answer and Step-by-step explanation:
This problem requires the use of trigonometric functions, specifically the tangent trig function.

Plug in the values.

Multiply by x to both sides, then divide by tan(40) to both sides.

Now, plug this into a calculator and rounded to the nearest whole number (foot).
x = 9534.0287
x = 9534 ft.
The answer is 9534 ft., the last option.
#teamtrees #WAP (Water And Plant)
Hey, expressing 59.2475 would look like:
Word form: Fifty-nine and two thousand, four hundred seventy-five ten-thousandths.
Expanded Notation Form:
50 + 9 + 0.2 + 0.04 + 0.007 + 0.0005.