the length of a rectangle is 7 m less than triple the width if w represents the width write an expression for the length l ?
2 answers:
Answer:
Step-by-step explanation:
Given that the length of a rectangle is 7 m less than triple the width if w represents the width.
we have to write an expression for the length l.
Width of rectangle=w m
As length is 7 m less than triple the width
Therefore length of rectangle can be written as
which is the required expression.
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Answer:
Step-by-step explanation:
<u>Vertex form of a quadratic equation</u>:
where:
- (h, k) is the vertex
- a is some constant
<u>Given vertex</u>: (2, -6)
⇒ h = 2 and k = -6
Substitute the values of h and k into the formula:
As we have not been given a value for the constant , assume this is 1.
Therefore, the <u>vertex form</u> of the <u>quadratic function</u> with vertex (2, -6) is:
Learn more about vertex form here:
Answer: Linear model and H'(t) = 9 units.
Step-by-step explanation:
Since we have given that
In 2000, amount spent = $100 billions
In 2010, amount spent = $190 billions.
So, rate of increase would be
So, linear model for H(t) would be
So, H'(t) would be 9.
Hence, linear model and H'(t) = 9 units.