In each reaction box, place the best reagent and conditions from the list below.
1 answer:
You might be interested in
Answer:
16
Step-by-step explanation:
The mean of a group of values is calculated as
mean =
Given 5 numbers with a mean of 12, then
= 12 ( multiply both sides by 5 )
sum = 60
let the number removed be x , then
= 11 ( multiply both sides by 4 )
60 - x = 44 ( subtract 60 from both sides )
- x = - 16 ( multiply both sides by - 1 )
x = 16
The number removed was 16
Answer:
<h3>Step-by-step explanation:
3, 9, 15, 21, ...
9-3 = 6; 15-9 = 6; 21-15 = 6 ⇒ d = 6
first term: a = 3
difference: d = 6
so the formula:
and:
<u>Answer:</u>
○
<u>Step-by-step explanation:</u>
Given the equation:
,
to solve for , we have to rearrange the equation to make
its subject.
⇒ [expand brackets]
⇒
⇒ [add
to both sides]
⇒
⇒ [subtract 96 from both sides]
⇒
⇒ [divide both sides by 20]
⇒