Answer:
3.5 cm
Step-by-step explanation:
Perimeter of rectangle = 2 × (w + h)
w = width
h = height
We have: 2 x (w + 6) = 19
w + 6 = 19 : 2 = 9.5
w = 9.5 - 6 = 3.5 (cm)
Listing out a few elements of the set of perfect squares, we get the following values
{1, 4, 9, 16, 25, 36, 49, 64, 81, 100, ...}
we can stop there because 82 is between 81 and 100
So if x^2 = 82, then x^2 is between 81 and 100 meaning
81 < x^2 < 100
apply the square root to all sides of the compound inequality and we get
9 < x < 10
So the square root of 81 is between 9 and 10
Answer: the value falls between 9 and 10
48
Here are all the possible 5 digit answers:
30567 30657 30765 30657 30576 30675
35067 36057 37065 36057 35076 36075
35607 36507 37605 36507 35706 36705
35670 36570 37650 36570 35760 36750
50367 50376 50637 50736 50763 50673
53067 53076 56037 57036 57063 56073
53607 53706 56307 57306 57603 56703
53670 53760 56370 57360 57630 56730
Answer:
d
Step-by-step explanation:
let the number be n then one third of the number is
n and 2 more than this is
2 + n = 8 ( is 8 means = 8 ) → d
So, 5 x (-3) + 7 = -15 + 7 = - 8 , but not 4;
Then, -3 is not a solution to 5x + 7 = 4;
