Answer:
The possible answers are
15
-8
2
Step-by-step explanation:
36 cm²s⁻¹ is the rate at which the area of the square is increasing.
Given each side of the square is increasing at a rate of 6cm/s
Area, A = s², s is the side length
=> 
{chain rule of differentiation}
= 6 cm/s
When A = 9 cm² => 9 = s²
=> s = √(9) => s = 3 cm
Hence, 
= 2 × 3 × 6 = 36 cm²s⁻¹
Hence, 36 cm²s⁻¹ is the rate at which the area of the square increases
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Answer:
will be the answer.
Step-by-step explanation:
The given expression is,
By solving this expression,
= 
= 
= 
=
Therefore, fraction given in option (2) will be the answer.
Answer:
3
Step-by-step explanation:
Given the data :
2, 3, 7, 8, 9, 13
2 5
3 4
7 0
8 1
9 2
13 6
The mean, = Σx / n ; n = sample size
Mean = 42 / 6 = 7
The mean absolute deviation = Σ|x - mean| / n
The mean absolute deviation is Hence,
(5 + 4 + 0 + 1 + 2 + 6) / 6
Mean absolute deviation = 18 / 6
Mean absolute deviation = 3
Answer:
h<36
Step-by-step explanation:
-24>⁶/7(h-8)
first of all we open the bracket on the right hand side, so we have
6/7(h-8)
=6/7*h-6/7*8
= 6h/7-48/7
=24 > 6h/7-48/7
so we multiply both sidea by 7 to eliminate the fractions,so we have..
24*7>7*(6h/7-48/7)
168>6h-48
we will then add 48 to both sides,
168+48>6h-48+48
216>6h
divide both sides by 6,
216/6>6h/6
36>h
h<36
