Step-by-step explanation:
15.50n +10=72
15.50×4+10=72
62+10=72
Answer:3
Step-by-step explanation: 60/6=10
66/6=11
60/3=20
66/3=22 you double the numbers of the quotient which halves the factor.
Answer:
It is +2 or since (+2)*(+2 ) gives. If you think that it would be (-2) also then you are wrong because root of a positive rational number is always positive number.
Step-by-step explanation:
Let the square root of four be ‘k’.
Then we have
(4)^1/2=k
(Squaring both sides)
4=(k)^2
=>(k)^2–4=0
=>(k)^2-(2)^2=0
=>[k+2][k-2]=0 {since (a)^2-(b)^2=(a+b)(a-b)}
if product of two numbers is 0 then either of one must be zero.
If k+2=0 then k=-2
If k-2=0 then k=2
From here we got two answers but -2 should be omitted because when we square an equation we add “root extra”which means that when we square an equation one root is added.
Answer:
5
Step-by-step explanation: The bigger triangle is 6 times bigger than the smaller one.
