Simplify each expression to a single complex number. 1. V-16
2. -25
3. V-84-18
4.-7-28
34-24
5
6.
6+7-45
3
3
Simplify each expression to a single complex number
7. (4+31)+(6-41
8. (-1-3i)+(2+71)
9. (-4+4i) – (7-2)
10. (1-4i) –(2+1)
11. (6+7i)(31)
12. (8-4i)(61)
13. (8-91)(7)
14. -4+7i)(10)
15. (12+9i)(5-31)
16. (+6+121)(–1+70)
17. (3-51)(3+57
18. (6+71)(6-7)

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)

]supplementary angles are two angles that add up to . • complementary angles are two angles that add up to degrees. • adjacent angles share a and a • congruent angles have the measure. • an triangle has one angle that is greater than 90 degrees. • a triangle with angles 45°, 45°, and 90° would be a triangle