Answer:
1) The solve by graphing will the preferred choice when the equation is complex to be easily solved by the other means
Example;
y = x⁵ + 4·x⁴ + 3·x³ + 2·x² + x + 3
2) Solving by substitution is suitable where we have two or more variables in two or more (equal number) of equations
2x + 6y = 16
x + y = 6
We can substitute the value of x = 6 - y, into the first equation and solve from there
3) Solving an equation be Elimination, is suitable when there are two or more equations with coefficients of the form, 2·x + 6·y = 23 and x + y = 16
Multiplying the second equation by 2 and subtracting it from the first equation as follows
2·x + 6·y - 2×(x + y) = 23 - 2 × 16
2·x - 2·x + 6·y - 2·y = 23 - 32
0 + 4·y = -9
4) An example of a linear system that can be solved by all three methods is given as follows;
2·x + 6·y = 23
x + y = 16
Step-by-step explanation:
Answer:
-11
Step-by-step explanation:
Answer:
If a son were to have a grandchild, Bob and Fran would then have two great-grandchildren.
Step-by-step explanation:
C = children
G = grand children
GG = great grand children
Bob and Fran have 3 children, 2 sons(C) and 1 daughter(C).
Their 2 sons have 5 children(G) between them. One son has 2 children(G). Their daughter has 3 children(G) and 1 grandchild(GG).
If the son with 2 children had a grandchild(GG).
Now we can see that, at present we have a single great grand child that is of their daughter's.
As given, if a son were to have a grandchild, Bob and Fran would then have two great-grandchildren.
Step-by-step explanation:
The first president of the United States was
