MATHEMATICS MIDDLE SCHOOL

Simplify (x2 + 3x)(x2 - x +4)

Answers

Answer 1
Answer:

Answer:

x⁴ +2x³ + x² + 12x

Step-by-step explanation:

(x² + 3x)(x² - x +4)

=  x²(x²) - x(x²) + 4(x²)  + x²(3x) - x(3x) + 4(3x)

= x^4 - x³ + 4x² + 3x³-3x²+12x

= x⁴ +2x³ + x² + 12x

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Will the sum of two linear expressions each with an x-term , always,sometimes,or never have an x-term ? Explain your reasoning

Answers


The sum will have an x-term sumtimes ... whenever
the x-terms alone don't add up to zero.

Examples:

-- Two linear expressions:

         y +  x
and   
         y + 2x

The sum of the x-terms alone is (x + 2x) = 3x .
So the sum of the expressions has an x-term.

         (y + x) + (y + 2x)  =  2y + 3x .
_______________________________

Two different linear expressions:

       y + 3x
and
       y - 3x

The sum of the x-terms alone is (3x - 3x) = zero.
So the sum of the expressions doesn't have an x-term.

         (y + 3x) + (y - 3x)  =  2y .

Reflect the triangle in the mirror line.

Answers

The diagram attached below shows the schematic representation of reflection of a triangle that occurs in a plane mirror.

What is a reflection?

A reflection can be defined as a type of transformation which moves every point of the object by producing a flipped but mirror image of the geometric figure.

The top left point will stay the same in the axis, and will be on the axis

Finally, the top right point will stay true same on the x-axis, but will be on the axis in its image.

Since the mirror is a plane surface which can reflect light. The diagram attached below shows the schematic representation of reflection of a triangle that occurs in a plane mirror.

Read more on reflection here:

brainly.com/question/12092571

#SPJ2

danielle spent $35 on a magazine and some notepads. if the magazine cost $3 and each notepad cost $4 then how many notepads did she buy

Answers

WORK:
$35 - $3 = $32
$32 divided by $4 = 8
ANSWER:
Danielle bought 8 notepads.

Is 11/20 and 17/40 and 1/12 either a repeating decimal or a terminating?

Answers


Every decimal is either repeating or terminating. 
It has to be one or the other.

1/12 is repeating.
The others terminate.

================================

A fraction is a short way to write a division problem.

Whenever you see a fraction, it means

     (the top number)  divided by  (the bottom number).

When you pick up your pencil or your calculator and actually do
the division, the answer to the division is the decimal form of the
fraction.  There you can see whether it's terminating or repeating.

To find the decimal form of  11/20, divide  11  by  20 .  It's  0.55 .

To find the decimal form of  17/40, divide  17  by  40 .  It's  0.425 .

To find the decimal form of  1/12, divide  1  by  12 .  It's 0.08333... repeating.

23 7/5
simplest form

Answers

23 7/5 = 23 + 7/5

7/5 can also be written as 1 2/5

And so then:

23 + 1 2/5

= 24 2/5

And that is your answer (:

Can someone help me with this ? asap !

Answers

Answer:

the 3rd one

Step-by-step explanation:
The answer to the question is C
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