<h3>
Answer: Choice 2. 
</h3>
=====================================================
Explanation:
The rule is that if 
for some positive number k, then it can be written as the compound inequality 
. This is a shorthand way of writing the two inequalities 
combined together.
note: 
is the same as 
From here, we replace k with 3
Therefore, 
turns into 
which breaks down further to
The keyword "and" is important as we can't pick one or the other. We must pick both 
and also 
Answer:
10 gallons 12 seconds.
Step-by-step explanation: The arrow is at 10 and pointing where 12 is.
Slope = -7-3/4+1
= -10/5
= -2
so the answer is a. −2−2
The triangle given above is a scalene triangle as non of its given sides are equal. To determine the area of the triangle, we use the Heron's formula which is expressed as below,
A = sqrt ((s)(s - a)(s - b)(s - c))
where a, b, and c are the lengths of the sides and s is the semiperimeter ((a+b+c)/2)
The area of the triangle can also be computed through the equation, A = rs
where r is the radius of the inscribed circle. Equating both areas,
A = sqrt ((s)(s-a)(s-b)(s-c)) = rs
Divide the equation by s,
r = sqrt ((s)(s-a)(s-b)(s-c)) / s
Solving for s,
s = (12+14+16)/2 = 21
Substituting to the equation for r,
r = sqrt ((21)(21-12)(21-14)(21-16)) 21
r = sqrt 15
r = 3.87
<em>ANSWER: r = 3.87</em>
