Answer:
Yes, one of the properties of determinants is that they are real numbers (including zero) not matrix. This if the entries of the matrix are real. Determinants can be both positive or negative numbers.
Step-by-step explanation:
I think you got confused with the 50 and 90.
Read my NOTE there it will surely help you answering other questions like this
39 foot into 3 pieces
one is 13 feet
the other pieces add up to the
remaining wire
which is 39-13=26 so
the two remaining pieces are x and y
one must be 2 less than 3 times the
other
x must be 2 less than 3 times the y
x=-2+3y
x=3y-2
x+y=remaining=26
26=x+y
x=3y-2
subsitute
26=3y-3+y
add like terms
26=4y-2
add 2 to both sides
28=4y
divide by 4
7=y
subsitute
7+x=26
subtract 7
x=19
19>7
7 feet is the legnth of the shorter
piece
To find out how many liters of energy drink Coach Donavan bought you need to multiply how much liters are in one bottle by how many bottles he bought.
9/10 x 15
9/10 x 15 is 13.5 or 13 and 1/2
So Coach Donavan bought 13 and a half liters of energy drink.
