Answer:
31
Step-by-step explanation:
/
Answer:
$13.90
Step-by-step explanation:
1.20 *1.20= $2.40 tax
30.20-2.40= $27.8 (both cds)
27.8/2 = $13.90 per CD
Alright, so we can start off by dividing
-4x^2+3xy-y^2 by <span>-(-7x^2-xy+6y^2)=7x^2+xy-6y^2 using long division, getting
-4/7
</span> _____________________
7x^2+xy-6y^2 -4x^2+3xy-y^2
- (-4x^2-4xy/7-24y^2/7)
__________________
25xy/7+31y^2/7
Since we can't do anything at this point, we do
-4/7+(25xy/7+31y^2/7)/(7x^2+xy-6y^2)
At this point, we can divide this by
(x^2+4xy-2y^2), resulting in
(-4/7+((25xy/7+31y^2/7)/(7x^2+xy-6y^2)))/((x^2+4xy-2y^2)). After that, we can't use long division since the numerator's top x exponent is 1.
(5 * 1/3) * 3 = 5 * (1/3 * 3)
the associative property of multiplication allows us to regroup the numbers without changing the answer
(5 * 1/3) * 3 = 5/3 * 3 = 15/3 = 5
but by regrouping, it is much easier
5 * (1/3 * 3) = 5 * 1 = 5
another example..
(6 * 2/3) * 3/2 =
12/3 * 3/2 =
12/2 =
6
but by regrouping...
6 * (2/3 * 3/2) =
6 * 1=
6
Answer:
Rational
Step-by-step explanation:
0.3pi is a rational number because its a terminating decimal