1 year ago

Need help for my math pretest it’s not making much sense

Mathematics

1 answer:

EleoNora [17]1 year ago

5 0

Answer:

Since there is no limit on the number of ounces you can send and every package has a weight greater than zero, then the domain is:

$x>0.$

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3 years ago

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Kong took 15\%, percent fewer seconds than Nolan took to complete his multiplication timed test. Kong took 85 seconds. How many

andreev551 [17]

Answer:

Nolan took 97.75 seconds. you may need to round it to 98.

Step-by-step explanation:

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3 years ago

A, b, c or d?????? Pls help quick

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Step-by-step explanation:

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3 years ago

The power generated by an electrical circuit (in watts) as a function of its current ccc (in amperes) is modeled by: P(c)=-20(c-

alekssr [168]

Answer:

The current that produces maximum power is 3A

Step-by-step explanation:

Given

$P(c) = 20(c - 3)^2$

Required [Missing from the question]

The current that produces maximum power

First, we represent the function in standard form

$P(c) = 20(c - 3)^2$

$P(c) = 20(c - 3)(c - 3)$

Open bracket

$P(c) = 20(c^2 -6c+ 9)$

$P(c) = 20c^2 -120c+ 180$

The maximum value of c is:

$Max(c) = \frac{-b}{2a}$

Where:

$f(x) = ax^2 + b^2 + c$

By comparison: $P(c) = 20c^2 -120c+ 180$

$a = 20$

$b = -120$

$c = 180$

So, we have:

$Max(c) = \frac{-b}{2a}$

$Max(c) = \frac{-(-120)}{2 * 20}$

$Max(c) = \frac{120}{40}$

$Max(c) = 3$

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3 years ago

Help fast it’s for a test

Verdich [7]

Answer:

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Step-by-step explanation:

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3 years ago