Answer:
The values of x are x= 2i and x= -2i
Step-by-step explanation:
We need to solve the equation:
2x^2 + 8 =0
Taking 2 common
2(x^2 +4) =0
Dividing both sides by 2
x^2+4 =0
Adding -4 on both sides
x^2 +4 -4 = 0-4
x^2 = -4
Taking square root on both sides we get
√x^2 = √-4
we know √4 = 2 and √-1 = i so answer is:
x = ± 2i
The values of x are x= 2i and x= -2i
The graph is shown in figure attached.
Answer:
JK = 18
Step-by-step explanation:
LK = x - 1
KJ = x + 11
LJ = LK + KJ = x - 1 + x + 11
-> LJ = 2x + 10
LM = 12
By tangent secant segment theorem:
Hope it helps you in your learning process.
Have a great day ahead.
Circumference of a circle
Answer:
(x+5)(x-3)
x = -5
x = 3
Step-by-step explanation:
find which 2 numbers when multiplied give -15 and when added give +2
they are +5 and -3
(x+5)(x-3)
x = -5
x = 3
The metric system<span> is a </span>decimal<span> measuring </span>system<span> that was made law in France during the French Revolution and is now used throughout the world. The </span>metric system<span> uses the metre (a unit of length) as its basic unit. Hope this helps. Have a nice day.</span>
