Answer: The tree is 4 feet tall.
Step-by-step explanation: 5/2=x/10
2 x 10=20
20/5=4
They all have 4 sides
They are made of 4 right angles
The sides are perpendicular to each other
The sides are different lengths
Answer:
The option is: <em>all real values except x = 7 and the x for which f(x) = -3</em>
Step-by-step explanation:
As the domain of f(x) is the set of all real values except 7. So it can be written as follows:
Domain of f(x) = { x ∈ R | x ≠ 7}
As the domain of g(x) is the set of all real values except -3. So it can be written as follows:
Domain of g(x) = { x ∈ R | x ≠ -3}
It is a common rule that the domain of a composite function (gºf)(x) will be the set of those input x in the domain of f for which f(x) is in the domain of g.
So, the option is: <em>all real values except x = 7 and the x for which f(x) = -3</em>
Keywords: domain, composite function
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Answer:
y = 40 + 0.35x
y = 50 + 0.1x
Step-by-step explanation:
Talk A Lot Company
$40 for 600 mins
$0.35 for each extra min
Total cost = y
Number of extra minutes after 600 mins = x
y = 40 + 0.35x
Chat Away Company
$50 for 600 mins
$0.10 for each extra mins
Total cost = y
Number of extra minutes after 600 mins = x
y = 50 + 0.1x
Answer:
± 3
Step-by-step explanation:
let n be the number then the number squared is n² , so
6n² = 54 ( divide both sides by 6 )
n² = 9 ( take the square root of both sides )
n = ± = ± 3
That is the number is 3 or - 3