For this case we have the following expression:
y2 - xy - 56x2
Rewriting we have the factored expression, which is given by:
(7x + y) (y-8x)
Checking we have:
7xy - 56x ^ 2 + y ^ 2 - 8xy
y ^ 2 - xy - 56x ^ 2 (OK)
Answer:
The factored expression is given by:
y2 - xy - 56x2 = (7x + y) (y-8x)
Answer:
The median is the average of the bases.
So, it equals (15 + 32) / 2 = 47 / 2 =
23.5
Answer
x=63
y=18
explanation
x+y=81
2x=7y
solve for x
x=(7/2)y
sub into first equation
(7/2)y+y=81
(9/2)y=81
y=18
sub into x equation
x=(7/2)(18)
x=63
Answer:
I personally think it is b. because there are only two choices, true or false. The answers are for 4 questions so,
2/4 = 1/2
He has 30 cards remaining. Divide this by the original number to determine the fraction remaining. Convert the fraction to a percentage by multiplying by 100%. This looks like ...
... 30/45 × 100% = 66 2/3% of the number he had originally
