Answer:
81y^4 - 16x^2, difference of squares.
Step-by-step explanation:
So we need to expand the following product:
(9y2-4x)(9y2+4x) = 9y2*9y2 + 4x*9y2 - 4x*9y2 -4x*4x = 81y^4 - 16x^2
And this type of product is the difference of squares.
Answer:
15 min
Step-by-step explanation:
6 episodes in 1.5 hrs.
1 episode in 1.5/6 hr.
i.e. 1.5*60/6 min
=15 min
Answer:
Step-by-step explanation:
the value of the expression is equal to 1. because any number raised to 0 is 1. it doesn't matter whats inside the bracket. if it is raised to 0. then its value =1.
if you want to change the expression not to be equal to 1. just replace the 0 power to any other number like 1,2,3 any number as you like.
Answer:
Garden Table: $750
Bench: $250
Step-by-step explanation:
Use the system of equation. Let "garden table" = x, and "bench" = y.
x + y = 1000
x = 3y
Solve for each variable. Note that x = 3y. Plug in 3y for x in the first equation:
x + y = 1000
(3y) + y = 1000
Simplify. Combine like terms:
4y = 1000
Isolate the variable, y. Note the equal sign, what you do to one side, you do to the other. Divide 4 from both sides:
(4y)/4 = (1000)/4
y = 1000/4
y = 250
A bench = $250.
Plug in $250 for y in one of the equations:
x = 3(y)
x = 3(250)
x = 750
A garden table = $750
The cost of the bench is $250.
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