Answer:
The value of f(-4) = -80
Step-by-step explanation:
It is given that, f(x) = -5x²
<u>To find the value f(-4)</u>
Let f(x) = -5x²
To find the value of f(-4), substitute -4 instead of x
f(-4) = -5 * (-4)²
= -5 * 16 [ since (-4)² = -4 * -4 = 16 ]
= -80
Therefore the value of f(-4) = -80
Answer:
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Step-by-step explanation:
why everyone is asking about maths........
I am a ...........
107.1 is the answer and it’s not rounded I use a calculator
Answer:
a and b are positive
Step-by-step explanation:
We are given that


We have to find that a and b are positive or negative.
We have

It means b is positive and greater than 4.

Adding 3 on both sides



Hence, a is positive and greater than 4.
Therefore, a and b are positive
Answer: The total cost will be $156.85.
Step-by-step explanation:
Since we have given that
Time taken by labor to assemble the each skateboard is given by

Time taken by labor to finish and stain each skateboard is given by

Cost of labour to the company per hour = $36.00
According to question,
We will use "Distributive Property":


Hence, the total cost will be $156.85.