Hello from MrBill:
Answers:
a) True.
The set of natural numbers is the set of positive integers (1,2,3,4...) and
sometimes zero (0). 27 is a positive integer and thus a natural number.
b) True. 2.7 is not an integer (it is a decimal value and a rational number)
c) True. Zero (0) is an integer, but not a positive or negative number.
d) False. -8 is an integer, a negative integer
MrB.
Answer:
Honestly im not sure
Step-by-step explanation:
5.2°C = (273 + 5.2)k = 278.2k
Change in temperature = 368k -278.2= 89.8k
q (heat energy) = MCp∆T
When Cp of water =1046J
q = 7.59 g × 1046J × 89.8k
= 712, 934.772Jgk-1 = 713kJgk
When Cp of water =250cal
q = 7.59 g × 250 × 89.8k = 170kCalk
Answer: 1/3 or 33%
Step-by-step explanation:
There are 20 total marbles, 6 are green. 20 divided by 6 is 3.333e3
Answer: 113.04 sq ft
Step-by-step explanation: C=2(3.14)r
C=circumference
R=radius.
R=18. C=2(3.14)(18)
C=6.28(18) =113.04 sq ft