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3 years ago

The screen on Lawrence’s new phone is 3.15 centimeters long. What mixed number represents the length of the phone screen?

Mathematics

1 answer:

notsponge [240]3 years ago

7 0

Answer:

3 and 3/20

Step-by-step explanation:

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Select the correct answer from each drop-down menu. Consider the following polynomials equations.

Zolol [24]

Answer:

Yes to all 3 questions.

Step-by-step explanation:

3x^2(x-1) + -3x^3+ 4x^2-2x+1

= 3x^3 - 3x^2 - 3x^3 + 4x^2 - 2x + 1

= x^2 - 2x + 1,

So A + B is a polynomial.

3x^2(x-1) - (-3x^3+ 4x^2-2x+1)

= 3x^3 - 3x^2 + 3x^3 - 4x^2 + 2x - 1

= 6x^3 - 7x^2 + 2x - 1.

So A - B is also a polynomial.

3x^2(x-1)( -3x^3+ 4x^2-2x+1)

= (3x^3 - 3x^2) ( -3x^3 + 4x^2 - 2x + 1)

= -9x^6 + 12x^5 - 6x^4 + 3x^3 + 9x^5 - 12x^4 + 6x^3 - 3x^2

= -9x^6 + 21x^5 - 18x^4 + 9x^3 - 3x^2.

So A * B is a polynomial.

5 0

3 years ago

Read 2 more answers

I NEED HELP NOWWWW AND I MEAN RIGHT THIS SECOND PLEASE

arsen [322]

Answer: See below

Step-by-step explanation:

1 1/2 as mixed fraction = 3/2

3/4 + 3/4 = 3/2

2 2/3 as a mixed fraction = 8/3

7/3 + 1/3 = 8/3

3 0

2 years ago

How do you solve this can someone please explain -5*(1-5x)+5*(-8x-2)=-4x-8r

Arlecino [84]

-5(1 - 5x) + 5(-8x - 2) = -4x - 8
-5 + 25x - 40x - 10 = -4x - 8
25x - 40x + 4x = -8 + 10 + 5 = 7
-11x = 7
x = -7/11

7 0

3 years ago

Need help with this

sashaice [31]

Answer:

First off, who is Landon Long? Nevermind.

Step-by-step explanation:

So to create equal fractions, you must multiply both the denominator and numerator by the same number.

Example:

$\frac{1}{2} *\frac{3}{3} =\frac{3}{6} =\frac{1}{2}$

What I see is that maybe you need to use the pictures to multiply the fractions by another fraction with the same numerator and denominator to create an equivalent fraction!

Sorry, might be wrong... :(

Anyways, hope this helps!

P.S. Stay Safe

5 0

3 years ago

Simplify this expression 1x/18x

USPshnik [31]

Wouldn't it be 1/18x?????

7 0

3 years ago