Answer:
41 + 11i
Step-by-step explanation:
Note that i² = - 1
Given
(3 - 5i)(2 + 7i) ← expand using FOIL
= 6 + 21i - 10i - 35i² ← collect like terms
= 6 + 11i + 35
= 41 + 11i
Answer:
2 7/12
Step-by-step explanation:
Make 4 1/4 and 1 2/3 have a common denominator.
4 1/4 - 1 2/3 = 31/12
31/12 simplified is 2 7/12
Answer:
I think its -2/5 but not sure
Step-by-step explanation:
Answer:
8.57 miles
Step-by-step explanation:
It is provided in the question that,
<em>Janice drove 360 miles in 6 hours.</em>
<em>Formula to calculate speed = distance / time</em>
Speed at which Janice drove = 360 / 6
= 60 miles/hours
<em>To find, </em>
<em>distance Janice will cover in 7 hours </em>
Distance = speed * time
Distance = 60miles/hour * 7 hours
Distance = 8.57 miles
So the distance Janice travel i 7 hours at 60miles/hr is 8.75miles
