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lizdeleon248
10.07.2019 •
Mathematics
Atree of height y meters has, on average, upper b branches, where upper b equals y minus 3. each branch has, on average, n leaves where n equals 2 upper b superscript 2 baseline minus upper b. find the average number of leaves on a tree as a function of height.
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Ответ:
we are given
number of branches is
number of leaves on each branch
the average number of leaves = (number of branches)*(number of leaves on each branch)
so, we can plug values
we get
now, we can plug values
now, we can simplify it
Ответ:
Area =
.
Step-by-step explanation:
Given : Vanessa uses the expressions (3x² + 5x + 10) and (x² – 3x – 1) to represent the length and width of her patio.
To find : Which expression represents the area (lw) of Vanessa’s patio?
Solution : We have given
Length = (3x² + 5x + 10)
Width = (x² – 3x – 1)
Area= length * width .
Area = (3x² + 5x + 10) * (x² – 3x – 1).
Area = 3x² (x² – 3x – 1) + 5x (x² – 3x – 1) + 10 (x² – 3x – 1).
Area =
.
Combine like terms
Area =
.
Area =
.
Area =
.
Therefore, Area =
.