Write the phrase as an algebraic expression: 3 less than 4 times a number
2 answers:
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Answer:
225 students scored 65 or better and 75 students scored 88 or better.
Step-by-step explanation:
We are given that The five-number summary for the scores of 300 nursing students are given :
Minimum = 40
Median = 82
Maximum = 100
is the first quartile and is the median of the lower half of the data set. 25% of the numbers in the data set lie below
and about 75% lie above
.
is the third quartile and is the median of the upper half of the data set. 75% of the numbers in the data set lie below
and about 25% lie above
i) .About how many students scored 65 or better?
Since we know that 75% lie above .
So, Number of students scored 65 or better =
ii)About how many students scored 88 or better?
Since we know that 25% lie above
So, Number of students scored 88 or better =
Hence 225 students scored 65 or better and 75 students scored 88 or better.
Answer:
A
Step-by-step explanation:
Note that
x² + 12x + 36 is a perfect square → (x + 6)², hence
=
= (x + 6)
Hence
f(x) × g(x)
= (x + 6)(x³ - 11)
= - 11x + 6x³ - 66
= + 6x³ - 11x - 66 → A