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2 years ago

14

10. Jessica had dance class for 3 hours last night, Tiffany had dance class for of time that Jessica had dance class. How long d

id Tiffany have dance class?

2 answers:

Stolb23 [73]2 years ago

5 0

Answer:

i think theres a typo somewhere

Step-by-step explanation:

Firlakuza [10]2 years ago

5 0

6 hours cause 2 * 3 is 6

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3 3/5 divided by 4 3/8

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Answer:

34.2 or 34/2

Step-by-step explanation:

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2 years ago

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Select the correct answer

Paladinen [302]

Answer:

a) We get $\mathbf{A+B=x^2-2x+1}$

So, Is the result of A+B is a polynomial:Yes

b) We get $\mathbf{A-B=6x^3-7x^2+2x-1}$

So, Is the result of A-B is a polynomial:Yes

c) We get $\mathbf{A.B=9x^6+21x^5-18x^4+9x^3-3x^2}$

So, Is the result of A.B is a polynomial:Yes

Step-by-step explanation:

We are giving the polynomial equations:

$A= 3x^2(x-1)\\B=-3x^3+4x^2-2x+1$

We need to find

a) A+B

$A+B=3x^2(x-1)+(-3x^3+4x^2-2x+1)\\A+B=3x^3-3x^2-3x^3+4x^2-2x+1\\A+B=3x^3-3x^3-3x^2+4x^2-2x+1\\A+B=x^2-2x+1\\$

So, we get $\mathbf{A+B=x^2-2x+1}$

So, Is the result of A+B is a polynomial:Yes

b) A-B

$A-B=3x^2(x-1)-(-3x^3+4x^2-2x+1)\\A-B=3x^3-3x^2+3x^3-4x^2+2x-1\\A-B=3x^3+3x^3-3x^2-4x^2+2x-1\\A-B=6x^3-7x^2+2x-1\\$

So, we get $\mathbf{A-B=6x^3-7x^2+2x-1}$

So, Is the result of A-B is a polynomial:Yes

c) A . B

$A.B=3x^3(-3x^3+4x^2-2x+1)-3x^2(-3x^3+4x^2-2x+1)\\A.B=9x^6+12x^5-6x^4+3x^3+9x^5-12x^4+6x^3-3x^2\\A.B=9x^6+12x^5+9x^5-6x^4-12x^4+3x^3+6x^3-3x^2\\A.B=9x^6+21x^5-18x^4+9x^3-3x^2$

So, we get $\mathbf{A.B=9x^6+21x^5-18x^4+9x^3-3x^2}$

So, Is the result of A.B is a polynomial:Yes

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2 years ago

Brainliest reward math question

Paladinen [302]

Dude you are puuting up so many questions today.
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3 years ago

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Lena is converting StartFraction 2 Over 25 EndFraction to a percent. What should she multiply the numerator and denominator of t

Sphinxa [80]

Answer:

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Step-by-step explanation:

Here, we want to help Lena convert the fraction to percent

To convert to percent, we have to multiply the whole fraction by 100

But in this case, it is same as 100/1

Thus, we are multiplying the numerator by 100 and the denominator by 1 to find the percentage

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2 years ago

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Check all of the ordered pairs that satisfy the equation below.

algol13

Answer:

what is the y-coordinate for A?

Step-by-step explanation:

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