Answer:
the first one is a and the second one is 1750 revolutions per minute
Step-by-step explanation:
Answer:
x=4/14
Step-by-step explanation:
step one:
3x^2+8x-4=0 turns into -
6x+8x-4=0
Step two:
6x+8x-4=0 turns into -
14x-4=0 because you have to combine like terms
Step three:
14x-4= 0 turns into
14x=4 to get x by itself
Step four:
14x=4 turns into -
x=4/14
Answer:

Step-by-step explanation:

Answer:
An example would be the way that the shelves of a bookcase are positioned, they are parallel. Parallel lines are two or more lines that when drawn out infinitely long never intersect.
Step-by-step explanation:
Answer:
x = ±4i or x = ±√-16
Step-by-step explanation:
x² - 5x + 19 = 5x + 3
x² + 16 = 0
x² = -16
x = ±√-16 (a negative square root is an imaginary number)