Answer:
First 12 natural numbers are: 1,2,3,4,5,6, 7,8,9,10,11 abs …. 12. Now, substitute 78 for the sum of observations and 12 for the total number of observations in the formula M=Sn to determine the arithmetic mean. Hence, 6.5 is the arithmetic mean of the first 12 natural numbers.
Answer:
<h2>x = 22 and y = 24</h2>
Step-by-step explanation:
Answer:
34.8 + 6.879 = 41.679
The ratio of boys to girls in the school’s choir is 3:4. If there
are 12 girls in the choir then there are 9 boys
45% of 175 is 78.75
8^2 - (5^2+ 1) = 38
Brainliest?
Answer: 40
Step-by-step explanation: 89 - 9 = 80. 80 ÷ 2 = 40. You know that Killian is 9 years older so you can subtract that from the 89. You have 80 left which would be divided between them meaning Thomas is 40.
(7^5 * 7^3)^4 * 7^-2 / 7^-7 * 7^20
= (7^8)^4 * 7^-2 / 7^(-7 + 20)
= 7^32 * 7^-2 / 7^13
= 7^(32 - 2) / 7^13
= 7^30 / 7^13
= 7^(30 - 13)
= 7^17
