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N76 [4]
3 years ago
9

Graph the linear equation. 4x+6y= -12

Mathematics
1 answer:
natka813 [3]3 years ago
4 0

Answer:

The points are  ( x_1 , y_1 ) = ( 0 , - 2 ) and  ( x_2 , y_2 ) = ( - 3 , 0 )

These points is plotted on the x-y graph

Step-by-step explanation:

Given linear equation as :

4 x + 6 y = - 12

now, Let the points for the equation be

( x_1 , y_1 )  and  ( x_2 , y_2 )

Now, From equation

For, x = 0

4 × 0 + 6 × y = - 12

Or, 0 + 6 × y = - 12

∴ y = \frac{-12}{6}

I.e y = - 2

So, ( x_1 , y_1 ) = ( 0 , - 2 )

Again

For, y = 0

4 × x + 6 × 0 = - 12

Or, 4 × x  + 0 = - 12

∴ x = \frac{-12}{4}

I.e x = - 3

So, ( x_2 , y_2 ) = ( - 3 , 0 )

So, The points are  ( x_1 , y_1 ) = ( 0 , - 2 ) and  ( x_2 , y_2 ) = ( - 3 , 0 )

Now, These points is plotted on the x-y graph Answer

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The box plot shows the undergraduate in-state tuition per credit hour at four-year public colleges. 0 300 600 900 1,200 $1,500 a
kkurt [141]

Answer:

(a) The median estimate is 450.

(b) The first and third quartiles are 300 and 750 respectively.

(c) The interquartile range is 450.

(d) The particular value which is less than 150 or it is more than 1200, is considered as an outlier.

(e) Yes, there is one outlier in our data which is the value of 1,500.

(f) The distribution is positively skewed.

Step-by-step explanation:

We are given that the box plot shows the undergraduate in-state tuition per credit hour at four-year public colleges. 0, 300, 600, 900, 1,200, 1,500.

(a) As we can see in the box plot that the middlemost data lies between 300 and 600, that means;

Median is given by the average of the two numbers, i.e;

             Median =  \frac{300+600}{2}

                           =  \frac{900}{2}  = 450

So, the median estimate is 450.

(b) As we know that the first quartile represents 25% of the data values and the third quartile represents 75% of the data values.

So, from the box plot given; we can observe that the first quartile, Q_1 = 300 and the third quartile lies between the values of 600 and 900, i.e;

Third quartile, Q_3 = \frac{600+900}{2}

                             =  \frac{1500}{2}  = 750

So, the first and third quartiles are 300 and 750 respectively.

(c) The interquartile range is given by the following formula;

          Interquartile range = Third quartile - First quartile

                                          =  Q_3-Q_1

                                          =  750 - 300 = 450

(d) From the box plot; it is clear that if the particular value is less than 150 or it is more than 1200, then it is considered as an outlier.

(e) Yes, there is one outlier in our data which is the value of 1,500.

(f) The distribution is positively skewed because the more values are on the right side of the curve and it skewed towards the right.

4 0
4 years ago
a train traveled 145 miles in 4.2 hours. to the nearest tenth, what was the average speed of the train in miles per hour?
AURORKA [14]

Answer:

34.5

Step-by-step explanation:

divide 145 by 4.2

4 0
4 years ago
Write (2x)4 without exponents
natka813 [3]

Answer:

16x

Step-by-step explanation:

2*2*2*2

7 0
4 years ago
How do you write 4/10 as a decimal
Vinil7 [7]
Just take a calculator and divide 4 by 10 exactly how you see it. Or just divide it like you normally would any number on paper. 0.4 is your answer.
8 0
3 years ago
Read 2 more answers
Yusuf has between 10 and 20 toffees. If he counts his toffees in 4s, he has 3 left over. If he counts his toffees in 5s, he has
Kryger [21]

Answer:

Yusuf got 19 toffees

Step-by-step explanation:

The problem tells us that if Yusuf counts his toffees in 4's, he has 3 left. Let's call the number of toffees "t", then we know that t≡3(mod4)

We also know that t≡4(mod 5)

Between 10 and 20, there are only 2 numbers t≡4(mod 5), these numbers are 14 and 19.

However, 14≡2(mod 4) so it doesn't add up.

On the other hand, 19 ≡3(mod4) and therefore, this is the answer.

4 0
3 years ago
Read 2 more answers
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