Answer:
2i and -2i
Step-by-step explanation:
I'll change u to x to be easier to understand.
x^2 = -4
sqrt(x^2) = sqrt(-4)
sqrt(-4) = 2i, or -2i
Test the choices !
Pick an even number, and see what each choice does to it.
Let's start with, say, 6 .
We'll try each choice, and see which one produces an odd number:
a). 6 to the 2nd power. . . . . . 6 x 6 = 36. That's not an odd number.
b). 6 + 3 = 9 This could be it. 9 is odd. We'll save this one.
c). 3·6 = 18. That's not an odd number.
d). 6/3 = 2. That's not an odd number.
The only one that gave us an odd number is (b).
Answer:2
Step-by-step explanation:
Combine like terms and divide
8x/4x
2
You need to find the answer in yards
1 yard=3 feet
Divide 18 and 12 by 3
18/3=6
12/3=4
A=bh
A=4*6
A=24 yards ^2
hope this helps:)
please mark thanks and brainliest:)
Answer:
Step-by-step explanation:
D
