Rule needed: i^2 = -1
Standard form a + bi
(3 + 2i)(7 - 5i) FOIL
3 * 7 = 21
3 * - 5i = - 15i
2i * 7 = 14i
2i * -5i = - 10i^2 = - 10 * -1 = 10
Putting it all back together.
31 - i
Answer:
Mean: 9
Median: 9
Mode: 9
Variance: 9
Standard deviation: 9
Step-by-step explanation:
X/-9 ≥3 multiply both side by -9 to get rid of fraction
-9/1•x/-9 ≥-9•3
Cross cancel -9 on left side
x ≥ -27
Step-by-step explanation:
wrong question or incomplete question
Answer:
<em>$2,025.78 </em>
Step-by-step explanation:
I = Prt ⇒ P =
2.25% = 0.0225
P = 45.58 ÷ ( 0.0225 × 1 ) ≈ <em>$2,025.78</em>