The answer should be the directrix because k represents the y-value of the vertex, and for this questions the parabola is probably facing upward, so the directrix is under the vertex.
Trapezium I hope you get it right
Answer:
1 student
Step-by-step explanation:
We know that groups of 3 cannot equaly fit into 25. So we have to think about what number less than 25 can have three equally divided in it. The number is 24. Now we know that 8 groups of 3 people can greet the parents. One student cannot be on the team becuase there are 25 students and 24 of them are already in groups. 25-24=1.
<em>You could also use division and get 1 as the remainder: </em>25 ÷ 3 = 8 with 1 as a remainder
I hope I helped! Let me know if you need help :)
Answer:
Step-by-step explanation:
x = number of windows being washed
3x + 15 > = 50 (thats greater then or equal to)
3x > = 50 - 15
3x > = 35
x > = 35/3
x > = 11 2/3
so he would have to wash 12 windows to get the minimum amount.....any more window money would go to the additional accessories.
Answer:
prob 27
Step-by-step explanation: