The correct answers are x≠2 and x≠(-2).
Domain restrictions are any points in the domain where the function will not have a value. This basically means that it's a point where x won't work in the function.
For the numerator, any value will work for x. We can have a value of 0 in the numerator, or a positive, negative, or decimal number.
However, the denominator cannot equal 0. This is because a fraction bar represents division, and we cannot divide by 0. The values that make the denominator 0 can be found by:
x²-4=0
Add 4 to both sides:
x²-4+4 = 0+4
x² = 4
Take the square root of both sides:
√x² = √4
x = 2 or x = -2.
Answer:
x = 1.71428571429 (1.7)
Step-by-step explanation:
4 - 7x= -8
-4 -4
-7x = -12
/-7 /-7
x = 1.71428571429
x = 1.7
Answer:
Approximately 62.83 inches.
Exactly 20π inches.
Step-by-step explanation:
It's simply the wheel's circumference.
<em>C</em> = 2π<em>r</em> = 2(10)(π) = 20π ≈ 62.83 inches
Answer:[7,2]
Step-by-step explanation:
