Yes all whole numbers are also rational number because they can be represented as a ratio of itself and 1, or as ratio of two other whole numbers.
For example:
4 = 8 / 2
4 = 4 /1
-3 = -9 / 3
1 = 1 / 1
3 = 3 / 1
In a right triangle, the square of the largest side is equal to the sum of the squares of the smaller sides, so if you plug the sides in to that equation, you should get zero if those sides form a right triangle.
B is the only option where this is true, so I believe set B defines a right triangle.
I'll help.
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"How it can be 57 ?"
The number 19 is multiplied by the number 3 at the bottom left.
19 × 3 = 57.
Answer:
15%
Step-by-step explanation:
To find the percent increase, use the equation:
percent of increase=<u>amount of increase</u>
original amount
The amount of increase is 92-80 = 12. The original amount of 80; this gives us
12/80 = 0.15 = 15%
Answer:
126
Step-by-step explanation:
a = 22
d = 22- 20 = -2
n = 9
Sn = 0.5n(2a +d(n-1))
=0.5 * 9 (2 *22 +-2(9-1))
= 126
