Answer:
3. 8 and 9
4. root 50 and root 144 for they are able to be multiplied to get a whole number/integer
5. 36 feet for the area is calculated be side x side all sides are equal so a number that has a whole root is the number so 36
6. 6 as would be one of the sides of the square rug
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Answer:
25 or more
Step-by-step explanation:
30/1.is 24 so it would be 25 or more times for it to be a better deal
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
Answer: 0.9
Step-by-step explanation:
