Answer:
6. 1.84×
7. 1070
8. 54
9. 19
10. 9
Explanation:
6. With scientific notation, we always aim to make the number into one's place with however many decimals required. So, we want the number to be 1.84. Now, let's think of how much bigger 1840 is compared to 1.84. It's divided by 1000, which is
. So, our answer is 1.84×
7. same thing, but now we have to multiply
out. Because this is basically 1000, we can move 1.07's decimal points 3 spaces over to the left. This gives us 1070.
8. The easiest way for me to find the LCM is to multiply the bigger number until it's a multiple of 18 as well. In this case, 54 is 27 times 2 and 18 times 3, or the Least Common Multiple
9. A prime number doesn't have any factors escept itself and 1. Every number except 19 is divisible by a number other than itself or 1.
10. The GCF would be the greatest thing able to divide 27 and 36. Looking at their factors, we find that 9 is their greatest factor.