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gulaghasi [49]
2 years ago
8

Pls help me asap stuck on this

Mathematics
1 answer:
mylen [45]2 years ago
3 0

Answer:

B

Step-by-step explanation:

Morning: 4\frac{7}{8} +1\frac{2}{3} =\frac{39}{8} +\frac{5}{3} =\frac{117}{24} +\frac{40}{24}=\frac{157}{24}

Afternoon: 3\frac{5}{6} +2\frac{7}{12} =\frac{23}{6} +\frac{31}{12} =\frac{92}{24} +\frac{62}{24}=\frac{154}{24}

Therefore, the hiker's hiked \frac{3}{24} more in the morning than in the afternoon.

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VashaNatasha [74]

The answer is 3x^4-13x^3-x^2-11x+6.

Solution:

Use algebraic identity: a^m\times a^n=a^{m+n}

For example: x^2\times x=x^{2+1}=x^3

Given expression (x^2-5x+2) and (3x^2+2x+3).

To multiply these equations.

(x^2-5x+2)\times(3x^2+2x+3)

             =x^2(3x^2+2x+3)-5x(3x^2+2x+3)+2(3x^2+2x+3)

             =(3x^4+2x^3+3x^2)+(-15x^3-10x^2-15x)+(6x^2+4x+6)

             =3x^4+2x^3+3x^2-15x^3-10x^2-15x+6x^2+4x+6

Combine like terms together.

             =3x^4+(2x^3-15x^3)+(3x^2-10x^2+6x^2)-15x+4x+6

             =3x^4-13x^3-x^2-11x+6

(x^2-5x+2)\times(3x^2+2x+3)=3x^4-13x^3-x^2-11x+6

Hence the answer is 3x^4-13x^3-x^2-11x+6.

3 0
3 years ago
You don't have to answer if you don't want to lol, but you just gotta simplify.
saveliy_v [14]

Answer:

question 8 is 178cmcubed I think

4 0
2 years ago
Read 2 more answers
PLEASE HELP IM BBEGGING!!!! WILL GIVE BRAINLYYYY!!!!!Which number line best shows the position of square root of 13? Number line
Citrus2011 [14]

Answer:

3.6

Step-by-step explanation:

3√13(3.6

   -9

-------  

66| 400  

    -396

    -------

           4

 

8 0
3 years ago
Read 2 more answers
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