Y + 2.3 = 0.45x
y = 0.45x - 2.3
-2y = 4.2x - 7.8
-2(0.45x - 2.3) = 4.2x - 7.8
-0.90x + 4.6 = 4.2x - 7.8
-0.90x - 4.2x = -7.8 - 4.6
-5.1x = - 12.4
x = -12.4 / -5.1
x = 2.4
y + 2.3 = 0.45x
y = 0.45(2.4) - 2.3
y = 1.08 - 2.3
y = -1.2
solution is : (2.4, - 1.2)
Answer:
P(x) =
+ 304x - 8510
x = 37 smallest B.E.P
Step-by-step explanation:
P = R - E
P = + 317 x
E = 13x + 8510
P = + 317 x - 13x - 8510
P(x) = + 304x - 8510
B.E.P.(X) where R=E
+ 304 x - 8510 = 0
2(x-37)(x-115)
Answer:
Step-by-step explanation:
2(x-1)=50, lets multiply
2x-2=50 add 2 in both sides
2x=48
x=24
your options are weird, unless you mean (x-1)^2 ?
<span>8i is:
z = 8(cos(90) + i sin(90)) ; now take the 1/3 power of it.
</span><span>When we take this to a normal integer power of 3 we get:
z^3 = 8^3(cos(90*3) + i sin(90*3)) right? its the same for rational exponents as well.
</span>
<span>z^(1/3) - 2(cos(90/3) + i sin(90/3))
</span>
<span>90/3 = 30; the cos(30)=sqrt(3)/2 and the sin(30) = 1/2
2(sqrt(3)/2 + i 1/2) = sqrt(3) + 1i should be one of the cube roots.
</span>
<span>(sqrt(3) + i)^2 = 2 +2sqrt(3) i
(sqrt(3)+i) (2 +2sqrt(3)i
2sqrt(3) + 6i +2i -2sqrt(3) = 8i</span>
