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.
Hey there!
Whenever we see the keyword "of", we know that it's multiplication.
Therefore, we're <em>multiplying</em> 1/3 and 7/1.
That gives us 7/3 by multiplying the numerators and denominators.
Hope this helps!
Answer:
8
Step-by-step explanation:
hypotenuse = c = 17 feet
Height = a = 9 feet + 6 feet = 15 feet
Children's space = b
a^2 + b^2 = c^2
15^2 + b^2 = 17^2
225 + b^2 = 289 Subtract 225 from both sides
225-225+b^2=289-225
b^2 = 64 Take the square root of both sides.
sqrt(b^2) = sqrt(64)
b = 8
Since each child takes up 1 foot, 8 children can sit on side b.
Hey!
------------------------------------------------
Steps To Solve:
0.61m - 1.51m = 9
~Combine Like Terms
-0.9m = 9
~Divide -0.9 To Both Sides
-0.9m/-0.9 = 9/-0.9
~Simplify
m = -10
------------------------------------------------
Hence, m equals -10!
------------------------------------------------
Hope This Helped! Good Luck!