Answer:
Step-by-step explanation:
C, (1,7)
In this triangle, we know base & perpendicular are 300 & 400 'cause 500 is the longest side which is hypotenuse
Now, Area of a triangle = ab/2 = (300)(400)/2 = 120000/2 = 60000
As cost for 1 ft² = $0.60
cost for 60000 ft² = 60000 * 0.60 = $36000
In short, Your Answer would be Option A
Hope this helps!
{ 3x-2y=2
{ y=2x+8
{ -2y=2-3x
{ y=2x+8
{ y= -1+3/2x
{ y= 2x+8
-1+3/2x = 2x+8
x=-18
y= 2(-18)+8
y= -28
(x,y) = ( -18,-28)
——
Solution check
{ 3(-18)-2(-28)=2
{ -28=2(-18)+8
{ 2=2
{ -28=-28
ANSWER

EXPLANATION
Let the first number be

Then the second number will be

and the third number is

The sum of these numbers is 26.
This implies that;

Group similar terms;

Simplify;

Divide both sides by 5

This gives us;

The numbers are:

Ok, first of all, it is important to understand that this function would depend on 2 variables; the number of dollars (x) and the number of pennies (y). Every dollar is equivalent to 100 pennies. So, if we are given x dollars, we have 100*x pennies. If we also have y pennies, we still get y pennies. We need to add these two to get the total amount of pennies. Thus, the correct function is:
f(x,y)=100*x+y