Solve for x. 2x^2+4x−1=0 Enter your answers in the boxes. HELP ASAP I DONT KNOW THIS ANSWER

Answer:

I. p = 7

II. 17 litres

Step-by-step explanation:

I. Determination of the value of p

Mean = 17.7

p =.?

Let the number of litre be L

Let the number of motorist be M

Mean = summation LM / summation M

Summation of LM = (16×11) + (17×10) + (18×p) + (19×4) + (20×8)

= 176 + 170 + 18p + 76 + 160

= 582 + 18p

summation M = 11 + 10 + P + 4 + 8

= 33 + p

Mean = summation LM / summation M

17.7 = 582 + 18p / 33 + p

Cross multiply

17.7(33 + p) = 582 + 18p

584.1 + 17.7p = 582 + 18p

Collect like terms

584.1 – 582 = 18p – 17.7p

2.1 = 0.3p

Divide both side by 0.3

p = 2.1 / 0.3

p = 7

II. Determination of the median number of litre.

Let the number of motorist be M (i.e the frequency)

summation M = 11 + 10 + P + 4 + 8

p = 7

summation M = 11 + 10 + 7 + 4 + 8

summation M = 40

The median is the middle term i.e

Median = (summation M / 2)ᵀʰ motorist

Median = (40 / 2)ᵀʰ motorist

Median = 20ᵀʰ motorist

Considering the table in the question above, the 20ᵀʰ motorist has 17 litres.

Therefore, the median number of litres is 17 litres.

Answer: Option d: -3*x^4*y + 2*x^2*y^2 + 5*y^3

Step-by-step explanation:

In standard form, the first term of the polynomial must be the term with the highest degree and on each subsequent term the degree decreases. In the case of two variables, the degree is equal to the sum of the exponents.

Then the correct option is d.

Where the degree of the first term is (4 + 1) = 5

The degree of the second term is (2 + 2) = 4

The degree of the third therm is 3.

We can see that the degree decreases as the term number increases, then the polynomial written in standard form is:

-3*x^4*y + 2*x^2*y^2 + 5*y^3

Answer:

54 inches

Step-by-step explanation:

Answer: 4 1/2= 9/2 and as a decimal it is 4.5

Step-by-step explanation:

4 time the denominator and then add the numerator which is equaled to 9/2 Pleas Mark Me As Brainliest

Answer:

X Y

10 7

8 5

6 3

Step-by-step explanation:

Not much to explain - just put a number 3 smaller than X into column Y

The required table for the given rule can be completed as follows:

X Y

10 7

8 5

6 3

A linear relationship is a connection that takes the shape of a straight line on a graph between two distinct variables - x and y. When displaying a linear connection using an equation, the value of y is derived from the value of x, indicating their relationship.

The rule is given in the question, as follows:

y is 3 less than x

For each value of x in the first column, the corresponding value of y in the second column can be calculated by subtracting 3 from x.

For example, if x is 10, then y is 3 less than x, which is 7 (10 - 3 = 7).

Similarly, if x is 8, then y is 5 (8 - 3 = 5), and if x is 6, then y is 3 (6 - 3 = 3).

The table for the given rule can be completed as follows:

X Y

10 7

8 5

6 3

Learn about the linear relationship here :

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Answer:

m∠R= 87°

Step-by-step explanation:

The angles in a polygon add up to (n-2)180

(5-2)180= 540°

You can set up an equation to add all the angles together equaling 540°.

Once you solve for x, plug that back into the formula for the angle of R(7x-11)

Answer:

below

Step-by-step explanation:

x=-20

Answer:

340 ft

Step-by-step explanation:

I think the answer you are looking for is 340 ft²!

Work shown in photo!

Answer:

90%

Step-by-step explanation:

please give me bfrainleist

Answer:

90%

Step-by-step explanation: can you help me.?

Answer:

x = 11

Step-by-step explanation:

x + 8 = 19        subtract both sides by 8

x = 11

Hey there!

x + 8 = 19

SUBTRACT 8 to BOTH SIDES

x + 8 - 8 = 19 - 8

CANCEL out: 8 - 8 because it give you 0

KEEP: 19 - 8 because it give you the x-value

NEW EQUATION: x = 19 - 8

SIMPLIFY IT!

x = 11

Therefore, your answer is:

x = 11 (Option A)

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Answer:

3

Step-by-step explanation:

399-360=39

Answer:

Los conjuntos numéricos que se relacionan entre sí son:

Naturales, enteros y racionales.

Los números naturales son aquellos números que se pueden escribir como sumas de 1.

Los números enteros son todos los números naturales, y agregamos el número cero y los números negativos.

Los números racionales son aquellos números que se escriben como cociente de dos números enteros. Acá también podés notar que:

7 = 7/1

entonces todo número entero se puede escribir como el cociente de dos enteros, lo que implica que el conjunto de los números racionales también engloba al conjunto de los enteros.

Entonces si N es el conjunto de los números naturales, Z es el conjunto de los números enteros, y Q es el conjunto de los números racionales, tenemos que:

N ⊂ Z ⊂ Q.

Ahora por otro lado, el conjunto de los números irracionales es aquel que no se puede escribir como cociente de dos números enteros. Con esto ya podemos concluir que no existe ningún elemento compartido entre ninguno de los conjuntos anteriores y este conjunto, y esto se debe a la definición de número irracional, como no se puede construir como el cociente de números enteros, entonces no hay forma de relacionarlo con ninguno de los otros conjuntos.

Answer:

really!!?? thank you!!!  need one! ;w;

Step-by-step explanation:

Answer:

put it at 4.5

Step-by-step explanation:

put it at 4.5 because 20's square root is 4.472 but it says approximately so you need to round 4.472 to 4.5

Answer:              -1

                         f    (x) =  ∛[19/x]

Step-by-step explanation:

Answer:

2x+2y=52

x*y=120

Step-by-step explanation:

Answer:

answered

Step-by-step explanation:

Answer:

im late.. but chile anywayz soo

886 btw

Answer:

64

Step-by-step explanation:

split it in half den it is two rectangles and they are both 32 so 32 * 2 is 64

Answer:

B

Step-by-step explanation:

it is b because 6x5=30 + 1 = 31.2

Answer:

D

Step-by-step explanation:

Hey There!

To find the area of a regular hexagon we use the formula

[tex]A = \frac{1}{2} ap[/tex]

a = apothem

p = perimeter

to find the peremeter we multiply the side length by the number of sides

which is 6

6x6=36 so the perimeter is 36

now we just plug it into the area of a hexagon formula

36x5.2=187.2

[tex]\frac{187}{2} =93.6[/tex]

so the area is 93.6 cm ³

Answer:

the answer would be D

Step-by-step explanation:

sec = 1/cos

Answer:

2nd answer choice :)

Step-by-step explanation:

The new figure produced is given below.

Option C is the correct answer.

A scale factor is defined as the ratio between the scale of a given original object and a new object,

We have,

Let the figure be in the first quadrant.

Now,

Rotation of 180-degree means,

The figure will be in the third quadrant.

Now,

Dilation with a factor of 1/2.

This means,

The figure will shrink by 1/2.

Thus,

The new figure is given below.

Learn more about scale factors here:

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Answer:

3

Step-by-step explanation:

m<3 is the only interior adjacent angle. It is interior because it is inside a triangle, and it is adjacent because it is touching another angle. Hence, < 3 is the  adjacent interior angle.

Answer:

33.6

Step-by-step explanation:

84(0.4) = 33.6

.....

Answer:

40% of 84 is 33.6

Step-by-step explanation:

No following options are listed, but I will solve for 40% of 84

First set these up into an equation

40/100 = x/84

Cross multiply

40 × 84 = 100 × x

3360 = 100x

Divide both sides by 100 to isolate the variable

33.6 = x

Answer:

[tex] - 2x - 2x = 729 + 3 - 27 - 1 \\ [/tex]

[tex] - 4x = 704[/tex]

[tex]x = -704 \div 4 = -176[/tex]

The area of the entire surface will be 2160 feet Wide/Long.

Answer:

The artist can make six batches of orange paint and it remains one cup of yellow paint

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Amount of red paint for one batch of orange paint = 1/3 of a cup

Amount of yellow paint for one batch of orange paint= 1/3 of a cup

Amount of red paint available = 2 cups

Amount of yellow paint available = 3 cups

2. How many batches of orange paint can she make?

2 cups of red paint = 6/3 = 6 batches of orange paint

3 cups of yellow paint = 9/3 = 6 batches and it remains one cup of yellow paint

The artist can make six batches of orange paint and it remains one cup of yellow paint

Step-by-step explanation:

Answer:

<6

Step-by-step explanation:

Corresponding angles have the same matching corner.

<6 has the same matching corner as <2. <6 and <2 are congruent.

Therefore, it can be concluded that <6 corresponds to <2.

1, -1/3, 1/9

it is divided by negative 3 or -3

To find that you need to divide the the first term with the next term

81÷-27=-3