Answer:
A is the correct set of coins
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.
Step-by-step explanation:
construct 90° then measure 4.6 cm and draw a line from F to D
Answer:
I think it would cost $13,400
Step-by-step explanation:
if you do 320 times 335 you get 107200 and then if you divide that by 107,200 you get $13,400
Answer: The greatest number of rows Li Na can plant is 9.
Step-by-step explanation:
Given: Li Na is going to plant 63 tomato plants and 81 rhubarb plants.
Li Na would like to plant the plants in rows where each row has the same number of tomato plants and each row has the same number of rhubarb plants.
To find the greatest number of rows Li Na can plant, we need to find the GCF of 63 and 81.
Since , 
Clearly, GCF(63,81)=9
Therefore, the greatest number of rows Li Na can plant is 9.