I only know how to do # 7.
7. 4.5^2 + 6^2 = 7.5^2
20.25 + 36 = 56.25
56.25 = 56.25
yes, the card is a right triangle because A and B added together equals the same as C
Answer:
6.9
Step-by-step explanation:
An octagon has 8 sides so:
55.2=8*x
x=55.2/8=6.9
Answer:
96 units^2
Step-by-step explanation:
A of parallelogram =base×height
12×8= 96 units^2
5/9 to chose odd card, 3/6 to roll even number