For the given polynomials, find the sum of the squares of the real roots. :

P(x) = x^{3} - x^{2} - 18x + k

Answer (the system of equations input doesn't work, so there is no brace):

x = 1.5y

x + y =800

Step-by-step explanation:

First, identify the vital information:

- 800 total students

- 1.5 times as many boys as girls

So, if x = number of boys and y = number of girls, we can agree that:

x = 1.5y

And because there are 800 kids in total, we can agree that:

x + y = 800

There are 320 girls and 480 boys. (see below)

Since you have the value of x, 1.5y, you can plug-in the value:

x + y = 800

1.5 + y = 800

2.5y = 800

y = 320 girls

Plug-in the y-value into the equation for the number of boys:

x = 1.5y

x = 1.5(320)

x = 480 boys

To double-check:

320 + 480 = 800 ☺

Answer:

X/4=3/6

Start off by cross multiplying the tops and bottoms, so X/4=3/6 turns into 6X=12. Now divide by 6 on both sides.

6X=12      X=2

Answer:

2

Step-by-step explanation:

Cross Multiple and Divide

X. 3

----. = ----

4. 6

So what you want to do is multiply diagonally:

(6)(X) = 6X

(3)(4) = 12

Now that we have our two answers, we put an equal sign between them.

6X = 12

Now to get X alone. Since it's being multiplied by 6, you want to do the opposite and divide.

So remember to divide on both sides to get rid of the 6.

6X divided by 6 is just X.

12 divided by 6 is 2

We got our answers, put the equal sign in-between

X = 2

Answer:

\($ x_1^2 + z_1^2 = y_1^2$\)

Step-by-step explanation:

Let   \($ p(x_1, y_1, z_1)$\)  be the point.

Any point on y-axis is (0, y, 0)

So, distance is

= \($ \sqrt{x_1^2+0 + z_1^2} $\)

= \($ \sqrt{x_1^2 + z_1^2} $\)   ......(1)

Now any point on x-z plane is \($ ( x_1, 0, z_1 ) $\)

Distance from p to this point is

= \($ \sqrt{0+y_1^2 + 0} $\)

= \($\sqrt{y_1^2}$\)    .........(2)

Equating (1) and (2), we get

\($ \sqrt{x_1^2 + z_1^2} = \sqrt{y_1^2}$\)

\($ x_1^2 + z_1^2 = y_1^2$\)

This is the required equation.

The correct option is A) 20.2.

What is triangle sum?

The triangle sum is a property of triangles that states that the sum of the interior angles of a triangle is always equal to 180 degrees. In other words, if you add up the measures of the three angles inside a triangle, the result will always be 180 degrees.

Using the given information and the fact that the angles in a triangle sum to 180 degrees, we can find the value of x as follows:

Start by finding the measure of angle K by subtracting the measures of angles A and B from 180 degrees:

K = 180 - A - B

= 180 - 84 - 65

= 31 degrees

Use the law of sines to set up an equation relating the side lengths and corresponding angle measures:

sin(A)/x = sin(K)/17

Substitute the values we know into the equation and solve for x:

sin(84)/x = sin(31)/17

x = sin(84)*17/sin(31)

Using a calculator, we get:

x ≈ 20.2

Therefore, the value of x in the triangle is approximately 20.2.

So, the correct option is A) 20.2.

To know more about triangle sum visit:

https://brainly.in/question/28314721

#SPJ9

Adjacent sides are sides that are adjacent to a vertex (corner point) of the angle. In a right-angled triangle, the side adjacent to the angle is the side that meets the angle and forms it.

Therefore, to determine the leg adjacent to angle A, we must first determine which angle is A, then identify which side meets and creates the angle.A right-angled triangle has a right angle of 90 degrees and two legs, a and b. The hypotenuse is c. The side opposite angle A is b, and the side adjacent to angle A is a. Thus, leg a is adjacent to angle A.

For more such questions on Adjacent sides

https://brainly.com/question/24753

#SPJ8

The item most likely to weigh 2 kilograms is a roast chicken.

The size, breed, and any other ingredients or stuffing used can all affect the weight of a roast chicken. Weights of roast chickens can range from petite ones weighing less than 1 kilogram to larger ones weighing more than 2 kilograms.

The other things that we have there would either weigh less than 2 Kg such as a tea bag or much more than 2 Kg such as a horse. The egg and the tea a very light and would be less than 2 Kg in weight while the bag and the horse would be above 2 Kg in weight.

Learn more about weight:https://brainly.com/question/31659519

#SPJ1

Answer: Max Value is y = 16

========================================================

Explanation:

The amplitude is the vertical distance from the horizontal center line to either the peak or valley.

The minimum value is 4. The distance from the min value to the center is 6 units. So the center is at 4+6 = 10.

Then we go another 6 units up to arrive at the max value 10+6 = 16

Refer to the diagram below. I recommend drawing out a sine curve along with  the vertical y axis number line.

Answer:

The maximum value: 16

Step-by-step explanation:

Given

We know that a function's amplitude A can be interpreted as the difference between the average between its maximum and minimum and its minimum.

\(A\:=\:\frac{max+min}{2}-min\)

solving for max

\(2A\:=\:max+min\:-2\:min\)

\(2A+2\:min=max+min\)

\(\:2\left(A+min\right)=max+min\)

\(max\:=2\left(A+min\right)-min\)

substituting A = 6 and min = 4

\(max\:=2\left(6+4\right)-4\)

\(max=\:2\left(10\right)-4\)

\(max\:=\:20-4\)

\(max = 16\)

Therefore, the maximum value: 16

There were 5 1/4 bags of popcorn left after eating 4 bags.

To find out how much popcorn was left after eating 4 bags, we need to subtract the amount eaten from the total amount Brianna made.

Brianna made 9 1/4 bags of popcorn, which can be represented as a mixed number. To perform calculations, let's convert it to an improper fraction:

9 1/4 = (4 * 9 + 1) / 4 = 37/4

Now, let's subtract the 4 bags eaten from the total:

37/4 - 4

To subtract fractions, we need a common denominator. The common denominator of 4 and 1 is 4. Therefore, we can rewrite the expression as:

37/4 - 4/1

Now, let's find a common denominator and subtract the fractions:

37/4 - 16/4 = (37 - 16) / 4 = 21/4

The result is 21/4, which is an improper fraction. Let's convert it back to a mixed number:

21/4 = 5 1/4

Therefore, there were 5 1/4 bags of popcorn left after eating 4 bags.

For more questions on bags

https://brainly.com/question/31835238

#SPJ8

The two angles are related in that they are supplementary angles

Supplementary angles would add tuo to 180 degrees according to the angle Theorem.

Adding the two given angles :

These angles are supplementary

The angles aren't vertical in that , vertical angles should have the same vertex. Complementary angles on the other hand add to 90 degrees. While the angles doesn't share the same side, hence, they aren't adjacent.

Hence, the angles are related as they are supplementary angles .

Learn more on angles : https://brainly.com/question/11955149

#SPJ1

Answer:

Step-by-step explanation: evagline has 3/5 of box of nuts.she uses it to fill 6 bowls

The graph of the function y = 5|x - 4| is added as an attachment

From the question, we have the following parameters that can be used in our computation:

y = 5|x - 4|

The above function is an absolute value function that has been transformed as follows

Next, we plot the graph using a graphing tool by taking not of the above transformations rules

The graph of the function is added as an attachment

Read more about functions at

brainly.com/question/2456547

#SPJ1

The product of 418 and 53 is 22,154

Given the expression 418 x 53. Using the partial product, this can be simplified as:

418 x 53 = (400 + 18)(50 + 3)

Expand using the distributive law:

418 x 53 = = 400(50) + 400(3) + 18(50) + 18(3)

418 x 53 = 20000 + 1200 + 900 + 54

418 x 53 = = 22,154

Hence the product of 418 and 53 is 22,154

Learn more on partial product here: https://brainly.com/question/24716925

Answer:

D. 65°

Step-by-step explanation:

It is so because the triangle is isosceles, two identical sides and two equal angles.

Answer:

Step-by-step explanation:

The general equation of a circle is expressed as x²+y²+2gx+2fy+c = 0 with centre at C (-g, -f).

Given the equation of the circles x²+y²−2x+4y+1  =0  and x²+y²+4x+2y+4  =0, to  get the centre of both circles, we will compare both equations with the general form of the equation above as shown;

For the circle with equation x²+y²−2x+4y+1  =0:

2gx = -2x

2g = -2

Divide both sides by 2:

2g/2 = -2/2

g = -1

Also, 2fy = 4y

2f = 4

f = 2

The centre of the circle is (-(-1), -2) = (1, -2)

For the circle with equation x²+y²+4x+2y+4  =0:

2gx = 4x

2g = 4

Divide both sides by 2:

2g/2 = 4/2

g = 2

Also, 2fy = 2y

2f = 2

f = 1

The centre of the circle is (-2, -1)

Next is to find the equation of a line containing the two centres (1, -2) and (-2.-1).

The standard equation of a line is expressed as y = mx+c where;

m is the slope

c is the intercept

Slope m = Δy/Δx = y₂-y₁/x₂-x₁

from both centres, x₁= 1, y₁= -2, x₂ = -2 and y₂ = -1

m = -1-(-2)/-2-1

m = -1+2/-3

m = -1/3

The slope of the line is -1/3

To get the intercept c, we will substitute any of the points and the slope into the equation of the line above.

Substituting the point (-2, -1) and slope of -1/3 into the equation y = mx+c

-1 = -1/3(-2)+c

-1 = 2/3+c

c = -1-2/3

c = -5/3

Finally, we will substitute m = -1/3 and c = 05/3 into the equation y = mx+c.

y = -1/3 x + (-5/3)

y = -x/3-5/3

Multiply through by 3

3y = -x-5

3y+x = -5

Hence the equation of the line containing the centers of the two circles is 3y+x = -5

Answer:

Step-by-step explanation:

12 ÷ (4 − (6 × 2 − ((3 + 3) × 2 − 1)))

12 ÷ (4 − (12 − ((3 + 3) × 2 − 1)))

12 ÷ (4 − (12 − ((6) × 2 − 1)))

12 ÷ (4 − (12 − (12 − 1)))

12 ÷ (4 − (12 − 11)))

12 ÷ (4 − (1))

12 ÷ (4 − 1)

12÷3

4

Answer:

1

Step-by-step explanation:

Determine the average rate of change over [0,3]:

\(\frac{f(b)-f(a)}{b-a}=\frac{f(3)-f(0)}{3-0}=\frac{13-16}{3}=\frac{-3}{3}=-1\)

Therefore, 1 gallon per day is being consumed (this is explained by the -1 from earlier).

The derivative of the function is solved and f' ( 1 ) = 0.183

Given data ,

Let the function be represented as f ( x )

Now , the value of f ( x ) is

f ( x ) = sinh⁻¹ ( √ (2x + 3 )

On taking the derivative of the function , we get

f' ( x ) = 1/ ( √2x + 4 ) ( √ ( 2x + 3 ) )

On simplifying , we get

when x = 1

f ( 1 ) = 1 / ( √6 ) ( √5 )

f ( 1 ) = 1/√30

f ( 1 ) = 0.18257

f ( 1 ) = 0.183

Hence , the function is solved

To learn more about derivative of a function click :

https://brainly.com/question/29005833

#SPJ1

Answer:

2.08

Step-by-step explanation:

ones . tenths hundredths  thousandths

Rounding to the nearest hundredth, we look at the thousandths place, if it is 5 or higher we round the hundredth place up

2.075

5 is 5 or higher so we round the 7 up to 8

2.08

Answer:

Step-by-step explanation:

Letter B is the correct answer

Initial population is 200, tripled every hour

200 x 3 = 600

First hour 200

Second hour = 600 + 200 = 800

Third hour 800x3 = 2400 + 800 = 3200

and so on.

Answer:
V = 180 (vans)

S = 90 (small trucks)

L = 40 (large trucks)

Step-by-step explanation:

Set up the variables: Let V represent the number of vans, S represent the number of small trucks, and L represent the number of large trucks.

Write the equations:

V + S + L = 310 (total number of vehicles)

V = 2S (twice as many vans as small trucks)

35,000V + 70,000S + 60,000L = 15,000,000 (total cost of the vehicles)

Substitute equation 2) into equation 1):

2S + S + L = 310

3S + L = 310

Simplify equation 3) by substituting V = 2S:

70,000S + 70,000S + 60,000L = 15,000,000

140,000S + 60,000L = 15,000,000

Set up a system of equations:

3S + L = 310

140,000S + 60,000L = 15,000,000

Eliminate L by multiplying equation 1) by 60,000:

60,000(3S + L) = 60,000(310)

180,000S + 60,000L = 18,600,000

Subtract equation 2) from the new equation:

(180,000S + 60,000L) - (140,000S + 60,000L) = 18,600,000 - 15,000,000

40,000S = 3,600,000

Solve for S:

S = 90

Substitute the value of S into equation 1) to solve for L:

3(90) + L = 310

270 + L = 310

L = 40

Substitute the values of S and L into equation 2) to solve for V:

V = 2S

V = 2(90)

V = 180

The final answer is:

V = 180 (vans)

S = 90 (small trucks)

L = 40 (large trucks)

Answer:

180 Vans 90 Small trucks and 40 Large trucks

Step-by-step explanation:

The firm should produce good  x₁ = 4 and x₂ = 8 to minimize cost of C = x₁² + x₂² .

What is Lagrange multipliers ?

Lagrange multipliers is a method used in optimization problems to find the maximum or minimum value of a function subject to one or more constraints. The method involves introducing a Lagrange multiplier, which is a scalar variable, to the objective function and the constraint(s). This forms the Lagrangian function, which is then optimized with respect to the original variables and the Lagrange multiplier.

To minimize the cost C = x₁² + x₂²

We can use the method of Lagrange multipliers to solve this problem. Let's define the Lagrangian function L as:

L(x₁, x₂, λ) = x₁²+ x₂² + λ(400 - 5x₁²- 8x₁x₂ - 15x₂²)

Taking partial derivatives of L with respect to x₁, x₂, and λ, we get:

∂L/∂x₁ = 2x₁ - 10λx₁ - 8λx₂ = 0

∂L/∂x₂ = 2x₂ - 30λx₂ - 8λx₁ = 0

∂L/∂λ = 400 - 5x₁² - 8x₁x₂ - 15x₂² = 0

Solving these equations simultaneously, we get:

x₁ = 4

x₂ = 8

λ = 1/20

Hence, the firm should produce a combination of x₁ = 4 and x₂ = 8 to minimize the cost of C = x₁² + x₂² while satisfying the production quota of 400.

To learn more about Lagrange multipliers , visit the link:

https://brainly.com/question/30459783

#SPJ1

Answer:

It is a Triangle

Answer:

CAB is 37 degrees

Step-by-step explanation:

90 + 53 = 143

180 - 143 = 37

Answer:

?

Step-by-step explanation:

The binomial factors of x³- 4x²+x+6​ are (x+2), (x+3), and (x-1).

Using the splitting and grouping the terms:

x³ + 4x² + x - 6

= x³ + 2x² + 2x² + x - 6  [Splitting 4x² = 2x² + 2x²]

= (x³ + 2x²) + (2x² + x - 6)

= x² (x + 2) + (2x² + 4x - 3x - 6)

= x² (x + 2) + [ 2x (x + 2) - 3 (x + 2)]

= x² (x + 2) + (x + 2) (2x - 3)

= (x + 2) ( x² + 2x - 3)

= (x + 2) ( x² + 3x - x - 3)

= (x + 2) [x (x + 3) - 1 (x + 3)]

= (x + 2) (x + 3) (x - 1)

Hence, the binomial factors are (x + 2), (x + 3) and (x - 1)

To learn more about factorise here,

https://brainly.com/question/10718512

https://brainly.com/question/24734894

Answer:

Diego has 7

Step-by-step explanation:

So if Susan has 21 and she has 3 times as much money as Diego the equation is 21 divided by 3. 21 divided by 3 is 3 groups of 7 so the answer is 7

Answer:

Ok if Susan has $21 and She has 3 times as much money as Diego.

That means the equation is 21 divide by 3.

So that means Diego has $7.

Step-by-step explanation:

Answer:

square root of 1625 is 40.311 or 40 as a whole number

Step-by-step explanation:

Answer:

40.3112887... simplify to 40.311, 40.31, or 40.3, depending on rounding.

Answer:

is their multiple question?