Answer:
y=4
Step-by-step explanation:
x+2y=10
2y=10-x
y=(10-x)÷2
-x+4y=14
-x+4( (10-x)÷2)=14
x+20-2x=14
-3x=-6
x=2
2+2y=10
2y=8
y=4
Two matrices may be added or subtracted only if they have the same dimension; that is, they must have the same number of rows and columns. Addition or subtraction is accomplished by adding or subtracting corresponding elements. For example, consider matrix A and matrix B. A =
Try this solution:
rule: the volume of any cylinder can be calculated with formula: V=πr²h, where r - the radius of the base, h - height of the cylinder.
Using the formula written above:
5. V=π*25*6=150*3.1415≈471.2389≈471.2 cm³;
6. V=π*64*4=256*3.1415≈804.2477≈804.3 cm³
Answer:
0.231
Step-by-step explanation:
