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3 years ago

Can you solve d-3/5=6 before multiplying by 5 reasoning yes or no and why?

Mathematics

1 answer:

Luda [366]3 years ago

5 0

Answer:

yes you can

apart from getting rid of the denominator you can collect like terms

Step-by-step explanation:

d=6-3/5

6=30/5

30/5-3/5

27/5

d=27/5

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Find the proportion. <br> Test is worth 50 points; test score of 84%

AveGali [126]

Answer is answerehdhd

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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:

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

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

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

$Max(c) = 3$

5 0

3 years ago

What is answer plz help

sp2606 [1]

Answer:

y=1

Step-by-step explanation:

When x= -4, y=1, i don't know how else to explain it. Find the y value of the graph at that point.

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2 years ago

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Write an equation of the circle with center (4,5) and radius 9.

mixer [17]

Answer:

I'm going to write both of these because maybe you have a fill in the blank question. I don't know.

$(x-4)^2+(y-5)^2=9^2$

Simplify:

$(x-4)^2+(y-5)^2=81$

Step-by-step explanation:

$(x-h)^2+(y-k)^2=r^2$ is the equation of a circle with center (h,k) and radius r.

You are given (h,k)=(4,5) because that is the center.

You are given r=9 because it says radius 9.

Let's plug this in.

$(x-4)^2+(y-5)^2=9^2$

Simplify:

$(x-4)^2+(y-5)^2=81$

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3 years ago

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Sati [7]

18 - 4.25 = 13.75.
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3 years ago

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