Answer:
3.6
Step-by-step explanation:
-7a+1.6a=-19.44
-5.4a=-19.44
5.4a=19.44
a=19.44/5.4
a=3.6
Answer:


Step-by-step explanation:
i is an imaginary unit, this means

Rewrite -5 as 
then

Rewrite -25 as 
then

Answer:
Step-by-step explanation:
Remark
The angle formed by the intersection of a tangent to a circle and an intersecting secant is 1/2 (Arc PS - arc PR)
PS = 208
PR = 74
Solution
x = 1/2 (208 - 74)
x = 1/2 (134)
x = 67
2(2)-3=5-2(2)
4-3=5-4
1=1
The correct answer is A