The square root of 82<span> is 9.0553851381374. Or, </span>
√82<span> = 9.0553851381374
I think?</span>
Answer:
The correct answer is "$159 and $175".
Step-by-step explanation:
The give values are:
Mean,
= $167
Standard deviation,
= $40
Number of commuters,
n = 100
Now,
⇒
On putting the given values, we get
⇒
⇒
⇒
By using the 2 SE rule of thumb, we get
=
=
= ($)
Or,
=
=
= ($)
i.e,
$159 and $175
Answer:
(1 - 2/5) shirts are left
x ≥ 200
Solution means that before 2/5 shirts were sold, there were 200 shirts.
Step-by-step explanation:
Given in the question the inequality
3/5x + 30 ≥ 150
Suppose number of shirts that were on display = x
A)
Explain what 3/5 means in the in equality
As stated in the question2/5 of the shirts are sold means
(1 - 2/5) shirts are left
3/5 = (1 - 2/5)
B)
3/5x + 30 ≥ 150
3/5x ≥ 150 - 30
3/5x ≥ 120
x ≥ 120 * (5/3)
x ≥ 200
C)
Solution means that before 2/5 shirts were sold, there were 200 shirts.
= 9n + 63
generate the first few terms using the recursive equation
f(1) = 72
f(2) = 72 + 9 = 81
f(3) = 81 + 9 = 90
f(4) = 90 + 9 = 99
the sequence is 72, 81, 90, 99, .....
This is an arithmetic sequence whose n th term formula is
= + (n - 1 )d
where is the first term and d the common difference
d = 99 - 90 = 90 - 81 = 81 - 72 = 9 and = 72
= 72 + 9(n - 1) = 72 + 9n - 9 = 9n + 63 ← explicit formula