C. 20 / 4
20 represents how much time practicing in running has reduced her run time, and dividing by 4 weeks show the amount of seconds lowered per week (5 seconds).
Answer:
3/32
Step-by-step explanation:
Whatever you do to y always happens to x right? I'm REALLY new to this question so i'm not really sure so wait for more responses if needed.
Answer:
R:D, B:S, B:C, R:H
Step-by-step explanation:
Hope this helps
Answer:
<h2>y = 3x - 4</h2><h2 />
Step-by-step explanation:
3x - y = 4 ⇔ 3x - y - 4 = 0 ⇔ 3x - 4 = y ⇔ y = 3x - 4
Answer:
Option A and Option C
Step-by-step explanation:
The surface area of a cone can be calculated with this formula:
(This matches with the option A)
Where 
is the lateral area of the cone (Being "s" the slant height) and 
is the area of the base of the cone (which is a circle).
You know that BA the is the area of the base and LA the lateral area of the cone.
Then, substituting into the formula for calculate the surface area of a cone, you get:
This matches with the option C
