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jekas [21]
2 years ago
15

Good evening! Can someone please answer this, ill give you brainliest and your earning 50 points. Would be very appreciated.

Mathematics
2 answers:
ehidna [41]2 years ago
8 0

Answer:

1. neither

2. factored form

3. standard form

Step-by-step explanation:

Vertex form of a quadratic equation:  y=a(x-h)^2+k

Standard form of a quadratic equation:  y=ax^2+bx+c

Factored form of a quadratic equation: y=a(x+d)(x+e)

\textsf{1.}\quad(x-1)^2+6

This is in vertex form, so as this is not an option → neither

\textsf{2.}\quad(2x-3)(x+4)

This is in factored form

\textsf{3.}\quad3x^2-5x+7

This is in standard form

77julia77 [94]2 years ago
7 0

Answer:

see explanation

Step-by-step explanation:

1 vertex form

2 factored form

3 standard form

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3 years ago
Roberto needs some roofing tiles to be cut from a large tile. How many tiles that are each 14 3/8 inches in length can he cut fr
ratelena [41]

Answer:

6 tiles.    

Step-by-step explanation:

We have been given that Roberto needs some roofing tiles to be cut from a large tile.

Let us find the number of tiles that can be cut from a larger piece of tile.

\text{Tiles can be cut from large piece}=\frac{\text{length of large tile}}{\text{length of each small tile}}  

Let us convert our given mixed fractions in improper fractions.

14\frac{3}{8}=\frac{115}{8}

100\frac{3}{8}=\frac{803}{8}

Now let us substitute our given values in above formula.

\text{Tiles can be cut from large piece}=\frac{803}{8}\div\frac{115}{8}

Since we know that dividing a fraction by a fraction is same as multiplying the reciprocal of second fraction with the first fraction.

\text{Tiles can be cut from large piece}=\frac{803}{8}\times\frac{8}{115}

Upon cancelling out 8 from numerator and denominator we will get,

\text{Tiles can be cut from large piece}=\frac{803}{115}      

\text{Tiles can be cut from large piece}=6.9826086956521739  

We can see that number of tiles turns out to be 6.98, although it is very close to 7, but we cannot round our answer because the 7th tile will still be shorter than the required measure. Therefore, we can only cut 6 tiles of the required size from the given large tile.

3 0
3 years ago
what is the capacity of a container that is filled in 35 minutes by a tap that supplies 240 liters per hour​
AlekseyPX
  • Answer:

<em>capacity = 140 liters</em>

  • Step-by-step explanation:

<em>1 h = 60 min</em>

<em />

<em>60 min ................ 240 l</em>

<em>35 min ...................... x l</em>

<em>x =35×240/60 = 8400/60 = 140 liters</em>

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3 years ago
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romanna [79]

The correct answer is: 2/5.

Explanation:

First you have to add the following expressions:

(\frac{3}{5}+\frac{1}{5}i)+(\frac{4}{5}-\frac{2}{5}i) \\ (\frac{3}{5}+ \frac{4}{5})+(\frac{1}{5}i-\frac{2}{5}i) \\= \frac{7}{5}-\frac{1}{5}i

Now subtract the above expression from (\frac{9}{5}-\frac{1}{5}i):

(\frac{9}{5}- \frac{1}{5}i) - (\frac{7}{5} -\frac{1}{5}i) \\ (\frac{9}{5} -\frac{7}{5}) + (\frac{1}{5}i -\frac{1}{5}i) \\ \frac{2}{5} \\


Hence the correct answer is 2/5.


7 0
3 years ago
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