Answer:
Step-by-step explanation:
a(1) = -7 (given)
a(2) = a(1) + 4 = -7 + 4 = -3
a(3) = a(2) + 4 = -3 + 4 = 1
a(4) = a(3) + 4 = 1 + 4 = 5
and so on.
To calculate the area of the black material on the flag, we need the shape and the dimensions of the black material itself.
<em>Since the question is incomplete, as the dimension of the flag and the dimension of the black material are not given, I will provide a general explanation</em>
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Assume the shape of the black material is a rectangle.
The area will be calculated as:

Take for instance;

The area is:


Assume the shape of the black material is a square.
The area will be calculated as:

Take for instance;

The area is:


Assume the shape of the black material is a triangle
The area will be calculated as:

Take for instance;

The area is:


So, in general.
You need to first get the shape of the black segment on the flag, then calculate the area using the appropriate formula.
Related link:
brainly.com/question/24251781
Total cost = 1.50 per bottle
y = 1.50x
If x = 1, y = $ 1.50 (1,1.5)
If x = 2, y = $ 3.00 (2,3)
If x = 3, y = $ 4.50 (3, 4.5)
If x = 4, y = $ 6.00 (4, 6)
There are your 4 sets of ordered pairs to graph.
You could continue with more x-values to get more ordered pairs.
1) The first one will be a (more than or equal to sign) since the line is solid, and it is referring to the area in front of the line rather than behind 3rd option
2)This will be just (more than) because it is dotted and is referring to the area above. 4th option
3)What you do is put the all the numbers into the equation (x,y) The one that will work is (-3,-4) cause -4<-(-3)-5 to -4<-2 and it stays true. 2nd Option
4) What you do for here is get the y on one side first by bringing the 5x over to the 15 and getting -3y<=-5x+15 then you divide the -3 out of both sides to have y<=5/3x-5 -5 will be your y-intercept. 3rd Option
Answer:
A is about 508.94 i hope this helps! :)
Step-by-step explanation:
A=πrl+πr2=π·6·21+π·62≈508.93801