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3 years ago

L= 3x+5 and width is x-3 what is the area of it? in polynomial in standard form

Mathematics

1 answer:

Studentka2010 [4]3 years ago

7 0

Area of rectangle =wxl
A=(3x+5)(x-3)
A=3x^2+5x-15-9x
A=3x^2-4x-15

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$5000 at 6% for 9 months what is the balance

Kay [80]

I think it's suppose to go

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3 years ago

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3 years ago

Victoria and her friends are going to the skateboard shop to pickup some equipment. They buy two new skateboards for $87.98 each

nika2105 [10]

Answer:

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Step-by-step explanation:

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3 years ago

If a club charges dues of $200 a year, it will have 50 members. For each $5 it raises its dues, it loses a member. USE AN EQUATI

Vikentia [17]

Answer:

The value is $y = \$ 225$

Step-by-step explanation:

From the question we are told that

The amount charge per year is $k = \$ 200$

The number of members it will have at this amount is $n = 50$

The amount amount increase that will lead to the loss of a single member is $z = \$ 5$

Generally the total amount the club would obtain from its members is mathematically represented as

$I = Amount \ due\ paid * Number \ of members$

Now let x denote the number of member lost

Hence

$I = (k + zx) (n-x )$

=> $I = (200 + 5x) (50-x )$

=> $I = 10000+50x-5x^2$

Thus the number of members that be removed to give the maximum income from dues is obtained by differentiating the above equation and equating it to zero

$\frac{dI}{dx} = 50-10x$