Answer:
5%
Step-by-step explanation:
A = P (1 + r)²
882 = 800 (1 + r)²
882 / 800 = (1 + r)²
√(882 / 800) = 1 + r
r = √(882 / 800) − 1
r = 0.05
The rate is 5%.
Answer:
<h2>(2 + 2i)(5 + 3i) = 4 + 16i</h2>
Step-by-step explanation:
Use FOIL: <em>(a + b)(c + d) = ac + ad + bc + bd</em>
and i² = -1
(2 + 2i)(5 + 3i) = (2)(5) + (2)(3i) + (2i)(5) + (2i)(3i)
= 10 + 6i + 10i + 6i² = 10 + 6i + 10i + 6(-1)
= 10 + 6i + 10i - 6 <em>combine like terms</em>
= (10 - 6) + (6i + 10i)
= 4 + 16i
Answer:
36
Step-by-step explanation:
11. Assuming distance is proportional to time,
.. (3 h)/(7 h) = d/(665 km)
.. d = (665 km)*(3/7) = 285 km . . . . . . selection B
12. (30 L)/(1.5 L/min) = 20 min . . . . . . selection C
The 2 is the hundredths value.
Hope it helps!