Answer:
Sec (x) - 2 tan (x)
Step-by-step explanation:
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:
less than
Step-by-step explanation:
because
1 l= 1000 ml
so 4.2 l= 4.2x1000
= 4200 l
so 4200<4800
Answer:
r > 17
Step-by-step explanation:
r -7> 10
Add 7 to each side
r-7+7 > 10+7
r > 17
Answer:
Step-by-step explanation:
3/5 - 2/5 = (3-2)/5 = 1/5
7/10 - 3/10 = (7-3)/10 = 4/10 = 2/5