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Rzqust [24]
3 years ago
13

Someone help me with this please

Mathematics
1 answer:
Anarel [89]3 years ago
4 0

Answer:

x(x-3)(x+5)=x(x^{2}+5x-3x-15)=x^{3}+2x^{2}-15x

If something is not clear

Just ask in the comment below

Greetings from Poland :)

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Write a polynomial expression, in simplified form, that represents the AREA of the blanket and use the expression to evaluate th
pochemuha

Answer:

Polynomial expression that represents the area of blanket:

A(x)=(6x^2+5x-21)cm^2

If x=2: A(2)=13cm^2  

Step-by-step explanation:

The area of the rectangle can be calculated with the formula:

A=lw

Being l the lenght of the rectangle and w the width of the rectangle.

In this case, the lenght and the width are represented with:

l=(3x+7)cm

w=(2x-3)cm

Substitute them into  A=lw:

 A(x)=(3x+7)(2x-3)

Then:

Use Distributive property (Remember the Product of powers property: b^a*b^c=b^{(a+c)} ):

A(x)=(3x+7)(2x-3)\\A(x)=6x^2-9x+14x-21

Add like terms:

A(x)=(6x^2+5x-21)cm^2 (Simplied form)

Evaluate x=2:

A(2)=(6(2)^2+5(2)-21)cm^2\\A(2)=(6(4)+10-21)cm^2\\A(2)=(24-11)cm^2\\A(2)=13cm^2

6 0
4 years ago
Ask if blurry. I really need help please
Whitepunk [10]

Answer:

A linear function is a polynomial function in which the variable x has degree at most one: {displaystyle f (x)=ax+b}. Such a function is called linear because its graph, the set of all points {displaystyle (x,f (x))} in the Cartesian plane, is a line.

Step-by-step explanation:

not sure if you wanted to know what it was.. ಠ_ಠ

4 0
3 years ago
fred has 10 coins in a book bag. He has 4 quarters, 1 penny, and 5 dimes. If Fred reaches into his book bag and draws a coin wit
Shtirlitz [24]
4/10  or 2/5
there is 4 possible items he needs to pull out of of 10 possible coins
8 0
3 years ago
Read 2 more answers
Help! What is the reciprocal of 5 3/5 ?
Ksivusya [100]

the recipocal is 0.17857142857

3 0
3 years ago
Read 2 more answers
3. The height in feet of a thrown football is modeled by the equation
KonstantinChe [14]

The expression 30t mean that the velocity of the football is 30, while the term 16t² makes the function to be quadratic.

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

Given the equation:

f(t) = 6 + 30t – 16t²

Where f(t) is the height of the football after t seconds.

The constant 6 means the football was thrown from a height of 6 feet above the ground.

The expression 30t mean that the velocity of the football is 30, while the term 16t² makes the function to be quadratic.

Find out more on equation at: brainly.com/question/2972832

6 0
2 years ago
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