Solve d2 + 17d + 72 = 0 by factoring.
2 answers:
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Answer:
The correct answer is "664".
Step-by-step explanation:
The given values are:
Margin of error,
E = 5%
i.e.,
= 0.05
Level of confidence,
C = 99%
i.e.,
= 0.99
Level of significance,
α = 0.01
From the z value table,
Critical z = 2.576
As we know,
The required sample size n will be:
=
On substituting the values, we get
=
=
=
=
i.e.,
=
Answer:
Step-by-step explanation:
Parent function of the square root function has been given as,
f(x) =
If the graph of the given function is stretched vertically by the scale factor = g(x) =
If the graph is shifted 3 units to the left,
h(x) =
Since, the graph of the function passes through a point (-2, 2),
2 = k
Therefore, the function is .
Given:
Monthly fees for the local pool are $8 per month and $2 per visit.
Hector pays $34 in pool fees total for the month.
To find:
The number of times he visit the pool.
Solution:
We have,
Monthly fee of pool = $8
Additional fee = $2 per visit
Let Hector visit x times.
Additional fee for x times = $2x
Total fee = Monthly fee + Additional fee
Divide both sides by 2.
Therefore, Hector visit the pool 13 times.