X^2+4+10=0
x=(-4(+/-)root16-40)/2, so we now know that the zeros are imaginary, because you can't square root a negative number and 16-40 is -24
so the two roots are…
-2+iroot6 and -2-iroot6
Answer:
Step-by-step explanation:
(3-(-6)) / (6-3) = 9/3 = 3
Answer: there are three feet in a yard, so first multiply 880 times 3 to get 2640 feet
Then multiply by the number of feet per mile. (5,280)
3 times 880 = 2,640
2,640 feet times 1 mile/5,280 feet.
Step-by-step explanation:
The answer is 172.8 g.
The volume of the cube (V) is:
V = a³ (a - the side of the cube)
The density (D) <span>is quotient of mass (m) and volume (V):
D = m/V = m/a</span>³
⇒ m = D · a³
<span>
It is given:
D = 2.7 g/cm</span>³
a = 4 cm
Therefore:
m = D · a³ = 2.7 · 4³ = 172.8 g