Answer:
x=-5, y=-1
Step-by-step explanation:
Substitute x=-4+y into -2x-5y=15. So we have
-2(-4+y)-5y=15
8-2y-5y=15
-7y=7
y=-1
And x is -4+y so x= -4+(-1)= -5.
Carlos graphed two graphs: and
As you can see from the diagram, these two curves have three common points at x=-3, x=-2 and x=3.
These three points ae solutions of the equation
Answer: correct choice is A.
For this case we have that by definition:
If we want to solve then:
We know that:
Substituting:
Answer:
Answer:
Explanation:
The image attached shows the dimensions of the coffe cans considered for this question.
The figure is a cylinder with dimensions:
Thus, to find the lateral surface of a coffe can, you use the formula for the lateral area of a cylinder:
Where, LA is the lateral area, r is the radius, and h is the height.
Substituting the dimensions given in the figure, you get:
To multiply, first convert the mixed numbers into improper fractions:
Now, you can multiply:
Answer:
8.5
Step-by-step explanation: