Answer:
6.37%
Step-by-step explanation:
A deck of cards have 52 cards. There are 4 suits of 13 card each, those suits are Hearts, Clubs, Diamond and Spades.
The probability that the first card is a heart is:

Now, the probabily that the second card is a diamond is:

The Probability that the first card is a heart and the second one a diamond is given by:
×

%
Answer: This triangle is <u>not</u> a right triangle
Step-by-step explanation:
In a right triangle, the hypotenuse(c) is always the longest side and a and b are the shorter sides. Thus, 5^2+9^2=13^2. Simplify this to get 25+81=169, then 106=169. Because 106 does <u>not</u> equal 169, it is not a right triangle.
<em>Hope it helps <3</em>
The greatest common factor of 645 and 570 would be <u>35</u>.