Answer:
B) -4 - 12i
Step-by-step explanation:
(3-4i)+(-7-8i) = 3 -4i - 7 - 8i
= 3 - 7 - 4i -8i
= -4 - 12i
Hi,
The equation looks like this...

Hope this helps.
r3t40
Answer: A
Explanation: Area of a rectangle = length * width= 2 * 5n = 10n. So Jenny was correct and Alan was wrong (because the length of the rectangle is not 2n; it is just 2)
Answer:
1. 9/10
2. 15/16
4. 3/5
5. 3/5
Step-by-step explanation:
1. 7/10 + 2/10 = 9/10
2. 13/16 + 2/16 = 15/16
4. 7/15 + 2/15 = 9/15 = 3/5
5. 9/20 + 3/20 = 12/20 = 3/5
Answer:
2.- 100
Step-by-step explanation 1:

↑ As we can see, the only common multiple between 4 and 25 that is given to is 100.
Step-by-step explanation 2:

↑ Another way of knowing the answer is by using a fraction solving method. As we can see, the denominator is once again 100.
Hope it helped,
BiologiaMagister