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:
32?
Step-by-step explanation:
16×2=32
not sure what the numbers after that means but
x8=128
x16=256
x4=64
Answer:
Her speed is 9 miles per hour
Step-by-step explanation:
18 divided by 2= 9
so she can drive 9 miles in an hour
Answer questions (a – d) for the following three data sets. A = {3, 5, 7, 9, 11, 12, 12} B = {1, 2, 2, 5, 5, 9, 13} C = {2, 5, 8
jekas [21]
Answer:#carry on learning
mark me as brainliest
a.8.4
b.5.4
c.9.4
