Answer:
I cant see the reference image so I dont have enough info to help. Srry :(
Step-by-step explanation:
Answer:
a) 
b) 
c) 
d) 
Step-by-step explanation:
We know that the circle is increasing its radio from an initial state of r=0 cm, at a rate of 5 cm/s.
This can be expressed as:

a) Radius of the circle, r (in cm), in terms of the number of seconds, t since the circle started growing:

b) Area of the circle, A (in square cm), in terms of the circle's radius, r (in cm):

c) Circle's area, A (in square cm), in terms of the number of seconds, t, since the circle started growing:

d) Expanded form for the area A:

<h2>
Answer:</h2>
The graph is shown in the Figure below
<h2>
Step-by-step explanation:</h2>
In this exercise, we have an equation. On the left side we have a straight line with slope
and there is no any y-intercept. On the right side, on the other had, we also have a straight line, but the slope here is
. Therefore, by plotting these two straight lines, we have that the solution is the origin, that is, the point
.
If a company makes two discounts with one being made first and then another, the equivalent discount is 37%.
<h3>What was the equivalent discount?</h3>
Assume that the price of a good in the company was $10.
The initial discount of 30% takes the price to:
= 10 x ( 1 - 30%)
= $7
Then there is a 10% discount:
= 7 x (1 - 10%)
= $6.30
The equivalent discount is:
= (10 - 6.3) / 10
= 37%
Find out more on equivalent discount at brainly.com/question/843074.
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It’s the first answer. The function is y = x*2