Answer: b = - a
Step-by-step explanation:
Given that b is located the same distance from 0 as another number a, but in opposite direction.
If b varies directly as a
Then,
b = - ka
Hence the opposite variation or relationship between a and b means they both carry opposite signs
Hence,
b = - a
Answer:
9×17
Step-by-step explanation:
because 17 is greater than 10.
The answer is 112 Explanation: In order to divide
1
3
4
,
1st: you must find the reciprocal of the
denominator, which is
1
4
2nd: Then you multiply
1
3
by the reciprocal
So
1
3
4
will now be
1
3
x
1
4
=
1
12
According to above figure, we can conclude that :
- The given triangles are congruent by SSS criteria.
Answer:
Second option: 81y^4 - 16x^2, the difference of squares
Step-by-step explanation:
(9y^2-4x)(9y^2+4x) is a special product named difference of squares, then we can apply this formula:
(a-b)(a+b)=a^2-b^2, with a=9y^2 and b=4x, then:
(9y^2-4x)(9y^2+4x)=(9y^2)^2 - (4x)^2
(9y^2-4x)(9y^2+4x)=(9)^2 (y^2)^2 - (4)^2 (x)^2
(9y^2-4x)(9y^2+4x)=81y^(2*2) - 16x^2
(9y^2-4x)(9y^2+4x)=81y^4 - 16x^2
