Answer:
E
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
most of the dots are along the line C
Answer: 7 minutes
Step-by-step explanation: You have to divide 69 hot dogs by 10 so you can get the unit rate once you get the unit rate you round it to the nearest tenth (6.9) to (7).
Answer:The graph of a proportional relationship is a straight line that passes through the origin. Proportional quantities can be described by the equation y = kx, where k is a constant ratio. You can tell that the relationship is directly proportional by looking at the graph.
Step-by-step explanation:
4n² - 16n - 84 = 0
Multiply both sides by 1/4 :
n² - 4n - 21 = 0
Add 21 to both sides:
n² - 4n = 21
Complete the square by adding 4 to both sides:
n² - 4n + 4 = 25
(n - 2)² = 25
Solve for n :
n - 2 = ± √25
n - 2 = ± 5
n = 2 ± 5
Then n = 2 + 5 = 7 or n = 2 - 5 = -3.
