Answer:
3x+2y
Step-by-step explanation:
Find the rectangles attached
Area of a rectangle = Length * Width
A = A1+A2
given
A = 30cm²
A1 = 3 * x
A1 = 3x
A2 = 2*y
A2 = 2y
Substitute
30 = 3x+2y
Hence the required equation is 3x+2y = 30
1)
The distance between points A and B is;

,
and if you wanted to you could measure out the legs of that hypotenuse using the slope between A and B, but I'm going to show you the easier way;
Δx = 4
Δy = -20
So from the midpoint, add 4 to the x-value and subract 20 from the y-value.
{(5+4),(-8-20)}
(9,-28) is the endpoint.
2)
Do the same thing as I did above;

So

is the distance.
Sorry for the delay, life delayed me a ton ,:D
"Determine if the polynomial is the difference of two squares" is the one among the following strategies that <span>is appropriate for factoring polynomials with 2 terms. The correct option among all the options that are given in the question is the second option or option "B". I hope that it has helped you.</span>
Answer:
60
Step-by-step explanation:
Given the following :
Half of baseball card got wet and was ruined
Number of baseball cards bought has replacement for the ruined cards = 20
Total number of baseball cards now = 50
The initial number of baseball cards =?
Let the initial number = y
Number that hit ruined = half of initial = y/2
Hence,
y - y/2 + 20 = 50
y/2 + 20 = 50
y/2 = 50 - 20
y/ 2 = 30
y = 30 * 2
y = 60
Hence, he started with 60 baseball cards.