Multiply numerator and denominator by the conjugate of the denominator
Denominator: -10 + 8i
Conjugate of the denominator: -10 - 8i
Operation:
[9 +7i] / [-10 + 8i] * [-10 -8i] / [-10 - 8i] = [-90 - 72i - 70i +56] / [100 + 64] =
[-34 -142i] / 164 = [-17 -71i] / 82
Answer:
2 is b 3 is a 4 is b
Step-by-step explanation:
Answer:
circumference = 2πr = 2 × 3.14 × 15 = 94.2cm
Option C
If a = 2, b = -1 and c = 3
-3a^2 - b^3 + 3c^2 - 2b^3 = -3(2)^2 - (-1)^3 + 3(3)^2 - 2(-1)^3 = -3(4) - (-1) + 3(9) - 2(-1) = -12 + 1 + 27 + 2 = 18
Answer:
y= one-fourth x+5
Step-by-step explanation:
