Answer:
x=9/2
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
x=60
60
60+30=90
60-30=30
60+90+30=180
7) Certainly there is a typo in the statement, just see that the expression of item (ii) is different from that of item (i). Probably the correct expression is:

. With this consideration, we can continue.
(i) Let E the expression that we are analyzing:

Since (x-1)² is a perfect square, it is a positive number. So, E is a result of a sum of two positive numbers, 2(x-1)² and 3. Hence, E is a positive number, too.
(ii) Manipulating the expression:

So, it's the case when E=0. However, E is always a positive number. Then, there is no real number x that satisfies the expression.
8) Let E the expression that we want to calculate:

Multiplying by (2-1) in the both sides:

Repeating the process, we obtain:
Answer:
0.0049382716
PS: you could just look it up ;)
Step-by-step explanation:
Answer:
Option C is correct...hope this helps:)