Answer:
The answer is A) -1 + 12i
Step-by-step explanation:
(7 + 3i) + (-8 + 9i)
(7 - 8) + (3 + 9)i
7 - 8 = - 1
3 + 9 = 12
- 1 + 12
see how it do it in the picture and hope it helps you..
Answer:
D. 84 square feet
Step-by-step explanation:
Hope this helps and have a nice day
Answer:
Two acute angles
Step-by-step explanation:
The right triangle has one 90 degree angle and two acute angles. Since the sum of the angles of a triangle is always 180 degrees... The two sides of the triangle that are by the right angle are called the legs... and the side opposite of the right angle is called the hypotenuse.
