Answer:
r >=21
Step-by-step explanation:
r/3-9>=-2
r/3>= -2+9
r/3 >= 7
r>=7*3
r>=21
Hello
5^(2x) = 27
if : a>0 and b>0 a = b <span>equivalent to log(a) = log (b)
</span> log (5^(2x)) = log(27) ... (1)
a>0 and b>0 log(a^n) = nlog(a)
(1) equivalent to :<span>2x log 5 = log 27</span>
Answer:
x ≤ 7/6
Step-by-step explanation:
12x - 5 ≤ 9 (add 5 to both sides)
12x ≤ 9 + 5
12x ≤ 14 (divide both sides by 12)
x ≤ 14/12
x ≤ 7/6
This is a kite due to the adjacent congruent sides (shown by the tickmarks). With any kite, the diagonals are perpendicular. So angle 3 is 90 degrees.
<h3>Answer: 90 degrees</h3>