What is k(-8) when given the function
k(x) = x +5 – 2x2?

What Is K(-8) When Given The Functionk(x) = X +5 2x2?

Answers

Answer 1
By the way, the typed out question is not proper. Be sure to be clear on signs, like absolute value.

Absolute value of -8+5 is 3. This is because -3 is turned positive due to | |

(-8)^2 = 64
Multiply 64*2, equal to 128

Then solve. — 64-128= -64

-64 is the answer

Related Questions

NO LINKS PLS
The ratio of sugar to flour used in a pudding recipe is 2:1. Which figure shows equivalent ratios?


A graph is drawn. The title is Pudding Recipe. The axis label is Sugar in cups. The x axis values are 0, 2, 4, 6, 8, 10, 12. The y-axis label is Flour in cups. The y axis values are 0, 1, 2, 3, 4, 5, 6. Points are plotted on the ordered pairs 1,2 and 2,4 and 3,6.


A graph is drawn. The title is Pudding Recipe. The axis label is Sugar in cups. The x axis values are 0, 2, 4, 6, 8, 10, 12. The y axis label is Flour in cups. The y axis values are 0, 1, 2, 3, 4, 5, 6. Points are plotted on the ordered pairs 2,2 and 4,3 and 6,4.


A graph is drawn. The title is Pudding Recipe. The x axis label is Sugar in cups. The x axis values are 0, 2, 4, 6, 8, 10, 12. The y axis label is Flour in cups. The y axis values are 0, 1, 2, 3, 4, 5, 6. Points are plotted on the ordered pairs 2,1 and 4,2 and 6,3.


A graph is drawn. The title is Pudding Recipe. The axis label is Sugar in cups. The x axis values are 0, 2, 4, 6, 8, 10, 12. The y axis label is Flour in cups. The y axis values are 0, 1, 2, 3, 4, 5, 6. Points are plotted on the ordered pairs 2,2 and 4,4 and 6,6.

Answers

Answer:

Answer #3

Step-by-step explanation:

The ratio of sugar to flour is 2:1, so the x values need to be twice as big as the y values in the points.

FOR BRAINLIEST

А is equivalent to 0.001 grams.

milligram

kilogram

decigram

Answers

Answer:

one milligram

Step-by-step explanation:

Answer:

milligram

Step-by-step explanation:

1,000 mg = 1 g

1 mg = .001 g

1 ton is equal to 2,000 pounds. How many pounds are in 5 tons, 230 pounds?

Answers

Answer: 10230

Step-by-step explanation:

The amount in pound is 1230 pounds.

What is Unitary Method ?

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.

For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

Given:

1 ton is equal to 2,000 pounds.

So, 5 tons  and 230 pounds

= 5 x 2000 + 230

= 1000 + 230

= 1230 pounds.

Learn more about Unitary Method here:

https://brainly.com/question/22056199

#SPJ6

The figure below shows the number of dots in each of the first four terms of a pattern.

image 3946d177031641899e8a9055b29f185e

Which of these can be used to determine
N
, the number of dots, given
t
, the number of the term in the pattern?


N
=
4
(
t

1
)

N = 4 ( t − 1 )

N
=
3
t
+
1

N = 3 t + 1

N
=
3
(
t

1
)
+
1

N = 3 ( t − 1 ) + 1

N
=
3
t
+
2

Answers

Answer:

there is nothing just a a codding log

Step-by-step explanation:

Find the value of y.

Answers

The value of the variable 'y' will be square root 21 that is √21.

What is the triangle?

The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180 °.

The ratio of the matching sides will remain constant if two triangles are comparable to one another.

The ratio of the corresponding sides of a similar triangle remains constant. Then the equation is given as,

y / 3 = 7 / y

Simplify the equation, then we have

y / 3 = 7 / y

y² = 21

y  = √21

The value of the variable 'y' will be square root 21 that is √21.

More about the triangle link is given below.

https://brainly.com/question/25813512

#SPJ1

What is the value of x?

Answers

Answer:x = 2Step-by-step explanation:

We know that the triangle is an isosceles triangle because the base angles are the same.

=> 4x - 1 = x + 5=> 4x - x = 1 + 5=> 3x = 6=> x = 6/3 = 2Conclusion:

Therefore, the answer is 'x = 2'

Hoped this helped.

[tex]BrainiacUser1357[/tex]

A hen costs $4 and chicks are sold at 3 for $2. A farmer paid $100 exactly for 80 of these birds. How many of each type did he buy?​

Answers

Answer:

Above is the answer, coupled with a detailed step-by-step explanation. Thank you!

Can someone help me with this?

Answers

Step-by-step explanation:

the average rate of change is

(f(x2) - f(x1)) / (x2 - x1)

(a)

(f(4) - f(-6)) / (4 - -6) = (3 - 1) / (4 + 6) = 2 / 10 = 1/5

(b)

(f(2) - f(-2)) / (2 - -2) = (-1 - -3) / (2 + 2) = (-1 + 3) / 4 = 2/4 = 1/2

Brody worked 8.5 hours at Food Lion this week and made $78.20. Based on the number of hours Brody worked and how much he was paid, how much money does Brody make per hour

Answers

Answer:

1 hour = $9.2

Step-by-step explanation:

The question says that:

Brody makes $78.20 in 8.5 hours.

So,

8.5 hours = $78.20

We need to find 1 hour pay.

So, divide both sides of the above equation by 8.5

8.5 / 8.5 hours = $78.20 / 8.5

1 hour = $9.2

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807



Select all of the phrases that could be
represented by the algebraic expression
3n - 3
This doesn’t make sense

Answers

The phrases that can be represented as the algebraic expression, 3n - 3 are: Option 3 and Option 5.

Let's translate each of the given phrases to algebraic expressions in order to determine which of them can be represented as 3n - 3.

Option 1:

3 fewer than n is represented as, n - 3

Option 2:

difference between n and 3 is represented as, n - 3.

Option 3:

3 times n is 3n

3 fewer than 3n is represented as 3n - 3.

Option 4:

product of 3 and n is represented as 3n.

Option 5:

3 less than 3n is represented as 3n - 3.

Therefore, the phrases that can be represented as the algebraic expression, 3n - 3 are: Option 3 and Option 5.

Learn more about algebraic expression on:

https://brainly.com/question/2164351

this is for 8th grade pls answer .​

Answers

Step-by-step explanation:

We have that

[tex](x + \frac{1}{x} ) {}^{2} = 3[/tex]

We are trying to find the number value so that we can apply in the later equation.

Qe first simplify.

Remeber that

[tex](a + b) {}^{2} = a {}^{2} + 2ab + {b}^{2} [/tex]

Also remeber that

[tex] \frac{1}{x} = {x}^{ - 1} [/tex]

so

[tex](x + x {}^{ - 1} ) {}^{2} = {x}^{2} + 2x {}^{0} + {x}^{ - 2} = 3[/tex]

We then simply remeber that x^0=1 so

[tex] {x}^{2} + 2 + \frac{1}{ {x}^{2} } = 3[/tex]

Multiply both sides by x^2.

[tex] {x}^{4} + 2 {x}^{2} + 1 = 3 {x}^{2} [/tex]

Subtract both sides by 3x^2

[tex] {x}^{4} - {x}^{2} + 1 = 0[/tex]

Notice that x^4= (x^2)^2.

So our reformed equation is

[tex]( {x}^{2} ) {}^{2} - {x}^{2} + 1 = 0[/tex]

Let a variable , w equal x^2. This means that we subsitute variable, w in for x^2.

[tex]w {}^{2} - w + 1 = 0[/tex]

Now we use the quadratic formula

[tex] w = \frac{ - b + \sqrt{b {}^{2} - 4ac } }{2a} [/tex]

and

[tex]w = - b - \frac { \sqrt{b {}^{2} - 4ac } }{2a} [/tex]

Let a=1 b=-1 and c=1.

[tex]w = \frac{1 + \sqrt{1 - 4(1)} }{2} [/tex]

[tex]w = \frac{1 - \sqrt{1 - 4} }{2} [/tex]

Now, we get

[tex]w = \frac{1}{2} + \frac{i \sqrt{3} }{2} [/tex]

and

[tex]w = \frac{1}{2} - \frac{ i\sqrt{3} }{2} [/tex]

Now since we set both of these to the x^2 we solve for x.

and

[tex] {x}^{2} = \frac{1}{2} + \frac{i \sqrt{3} }{2} [/tex]

and

[tex] {x}^{2} = \frac{1}{2} - \frac{i \sqrt{3} }{2} [/tex]

We can represent both of these as complex number in the form of a+bi. Next we can convert this into trig form which is

[tex] {x}^{2} = 1( \cos(60) + i \: \sin(60) [/tex]

and

[tex] {x}^{2} = 1( \cos(300) + i \: sin(300))[/tex]

Next we take the sqr root of 1 which is 1, and divide the degree by two.

[tex] {x} = 1( \cos(30) + i \: sin \: 30)[/tex]

and

[tex]x = 1( \cos(150) + i \: sin(150)[/tex]

We are asked for the 2nd root so just add 180 degrees to this and we have

[tex]x = 1 \cos(210) + i \: sin \: 210)[/tex]

and

[tex]x = 1( \cos(330) + i \: sin(330)[/tex]

which both simplified to

[tex]x = - \frac{ \sqrt{3} }{2} - \frac{1}{2} i[/tex]

and

[tex]x = \frac{ \sqrt{3} }{2} - \frac{1}{2} i[/tex]

Now we must find

x^18+x^12+x^6+1.

We just use demovire Theorem. Which is a complex number raised to the nth root is

[tex] {r}^{n} (cos(nx) + i \: sin(nx)[/tex]

So let plug in our first root.

[tex]1( \cos(330 \times 18)) + i \: sin \: (330 \times 18))) + 1( \cos(12 \times 330)) + i \: sin(12 \times 330) + 1( \cos(6 \times 330) + i \: sin(6 \times 330))) + 1[/tex]

To save time we multiply the angle and use rules of terminals angle and we get

[tex]1( \cos(180) + i \sin(180) ) + 1( \cos(0) + i \: sin \:( 0) + 1( \cos(180) + i \: sin(180) + 1[/tex]

And we get

[tex] - 1 + 1 + - 1 + 1 = 0[/tex]

So one of the answer is x=0

And the other, let see

[tex]1 \cos(210 \times 18) + i \: \sin(210 \times 18) + 1 \: cos(210 \times 12) + i \: sin(210 \times 12) + 1 \cos(210 \times 6) + \:i sin(210 \times 6) + 1[/tex]

[tex] \cos(180) + i \: sin(180) + 1 \cos(0) + i\sin(0) +1( \cos(0) + i \sin(0) + 1[/tex]

We get

[tex] - 1 + 1 + 1 + 1 = 2[/tex]

So our answer are 2.

So the answer to the second part is

0 and 2.

A worker earns $30 every 4 hours. How much would the worker earn in 19 hours?

Answers

Step-by-step explanation:

30/4 = 7.5 per hour

now,

7.5 × 19 = 142.5

$142.5

Answer:

$142.50

Step-by-step explanation:

30 divide by 4 = 7.5

So each hour the worker would earn $7.50

7.5 x 19= The worker will earn 142.50 after working 19 hours.

Help please! Due today

Answers

Answer:

First triangle: 54.46 degrees

Step-by-step explanation:

For the first problem, solve for the third side, then the third angle, and then subtract from 180.

20^2 + 28^2 = c^2

400 + 784 = c^2

1184 = c^2

34.41 = third side

Find the third angle:

sin(90)/34.41 = sin(x)/20

20 * sin(90)/34.41 = sin(x)

35.54 is the third angle.

180 - 35.54 - 90 = 54.46. The angle with the question mark is 54.46. Do the other 2 problems the same way.

The art club had an election to select a president. 100% of the 31 members of the club voted
in the election. How many members voted?

Answers

Answer:

31

Step-by-step explanation:

A bicycle store costs $2550 per month to operate. The store pays an average of $45 per bike. The average selling price of each bicycle is $75. How many bicycles must
the store sell each month to break even?

Answers

Answer:

3750

Step-by-step explanation:

2250/45=50

50x75=3750

Please help, I will mark brainliest :)

Answers

Answer:

Its A $0.50 per mile

Step-by-step explanation:

What’s the figure name

Answers

Answer:

Line GH or Line HG

Step-by-step explanation:

Hope it help !!

Answer:

line segment

Step-by-step explanation:

a point to a point which makes a straight line is called a line segment

You are selling candy for $2 each and burgers for $5 each. You have a budget for $150. The equation for this situation can be written as 2x+5y=150

Find the x intercept and y intercept. Show all work.

If you are selling 0 burgers, how many candies did you sell? Show your work.







If you are selling 0 burgers, how many candies did you sell? Show your work.



Answers

30 burgers because 5 x 30=$150

Does anybody know what Savvas is? cause I don't know the answer to 6.4 x 3.7 can anybody help.

Answers

Answer: I'm not sure what Savvas is, but the answer to your second question is 23.68.

Step-by-step explanation: This can be solved using the stacking method of multiplication, like so:

6.4

x3.7

You would multiply this equation as if there are no decimals, (first doing 7x4, and then 7x6 + 2, then adding a zero to your ones place at the bottom, and doing 3x4, the 3x6 + 1), to get 2348. You then would add the decimals in by moving over 2 places to the left.

what is 5x to the power of 2 times 4x to the power of 3 divided by 4

Answers

Answer:

5x^5

Step-by-step explanation:

5x^2*4x^3/4

Divide

5x^2*1x^3

Multiply and Calculate

5x^5

answer: [tex]25x^{3}[/tex]

steps to solve:

→ let's write this out as an equation instead of in word form. 5x to the power of 2 times 4x to the power of 3 divided by 4 is [tex]\frac{5^{2} * 4x^{3}}{4}[/tex].

→ first, calculate the power of [tex]5x^{2}[/tex]. [tex]5x^{2} = 25[/tex], so now we have [tex]\frac{25^{2} * 4x^{3}}{4}[/tex]

→ now, multiply the monomials. [tex]25 * 4x^{3} = 100x^{3}[/tex].

→ [tex]\frac{100x^{3}}{4}[/tex]. we need to cross out the common factor, which is 4. 100 divided by 4 is 25. we're now left with [tex]25x^{3}[/tex].

so, [tex]25x^{3}[/tex] is the answer


Help me this hard im stuck

Answers

Answer:

B, C

Step-by-step explanation:

PLS HURRY!!! NO LINKS, NO STEALING POINTS, AND NO USELESS ANSWERS OR YOU WILL BE REPORTED!!!!!!

What type of triangle is this?

Answers

Answer:

It's an obtuse Scalene Triangle

Step-by-step explanation:

Look up triangle angle calculator and enter in the sides

Find the slope of the line below. Enter your answer as a fraction or decimal.
Use a slash mark (/) as the fraction bar if necessary.
5
|(2, -1) 5
(-2,-3)
2

Answers

Answer:

The slope is 2/4 or 1/2

Step-by-step explanation:

What is the distance from 5,1 and 2,1

Answers

Use this rule it will help

Answer:

2.0

Step-by-step explanation:

This question has 3 parts: subject (distance), and numbers (5.1 and 3.1).

Distance means subtraction. Between means to 5.1 and 3.1 .

So 5.1 - 3.1 = 2.0

1. Nathan bought a bicycle for $230 at an auction. He fixed it up and sold it at a 30% markup. How much did
Nathan sell the bike for?

Answers

If you are marking off a price that means you are ADDING to your final price because Nathan needs a profit for his bike. So to find the final price let’s add 30% of the original price to the final price by multiplying 230 by 0.30 which equals to 69 so then we add 69 to 230 which will be 299. So our final price is $299 dollars with the markup.

Nathan bought a bicycle for $230 at an auction. Nathan sells the bike for $299 at a 30% markup.

What is the percentage?

A percentage is a minimum number or ratio that is measured by a fraction of 100.

Nathan bought a bicycle for $230 at an auction. He fixed it up and sold it at a 30% markup.

So, the markup price, we get

30% of $230

= 30/100 x 230

= 3 x 23

= 69

Total selling price = 230 + 69

                             = 299

Thus, Nathan sells the bike for $299.

Learn more about percentages;

https://brainly.com/question/23111313

Rupert bought a watch for 7 dollars and 58 cents and sold it for 37 dollars and 90 cents, what is the ratio of selling price to cost price in its simplest form ?​

Answers

Answer:

5 : 1

Step-by-step explanation:

Selling price = 37.90

Cost price = 7.58

Selling price : cost price = 37.90 : 7.58

When simplifying, we can first check if one number is a factor of the other:

7.58 * 3 = 22.74

7.58 * 4 = 30.32

7.58 * 5 = 37.9

Perfect. Therefore, selling price = 5 * cost price and selling price: cost price = 5:1

Smallest Positive fraction

Answers

Answer: 1/5?

Step-by-step explanation:

if you have 6 apples and you give 2 apples to Ciara how many apples do you have? (hint you don't have friends)

Answers

Answer:

4

Step-by-step explanation:

6 - 2 = 4

Answer:

4

Step-by-step explanation:

Ciara is not my friend but she's my sister

please help me asap


ty :)

Answers

Answer:

y = -1/7x + 1

Step-by-step explanation:

Subtract 3x both sides

21y = 21 - 3x

Divide by 21 both sides

y = 1 - 1/7x

y = -1/7x + 1

what the first 3 prime numbers greater than 12

Answers

Answer:
13 17 and 19
Answer:

13, 17 and 19
Other Questions
The boiling points of five liquids have been measured 10 times each by a team of scientists, with fairly consistent results. Which next step would be the most logical? 1. Test a sixth liquid to see if it follows patterns in the rest of the data.2. Use a new thermometer to make sure that the original one was not faulty.3. Continue collecting data until exact boiling points can be found. 4. Test the results an eleventh time, and average the new trial into the data. Why was shipbuilding important to the Romans' international trade?1. The fastest way to move goods between Italy and Asia or Africa was by ship.2. Italy was covered with forests, which provided the lumber needed to build ships.3. Romans could build ships faster and better than their neighbors.4. A major part of Rome's economy was the selling of ships to foreign merchants. According to the chart you read on Catholicism, Lutheranism, and Calvinism, what is the biggest difference on how belief isrevealedin the catholic church, the priest interprets the bible and church teaching for the peoplepeople are left to interpret the bible themselvessalvation is achieved through faiththe bile alone is the source of truth 9. P waves move faster than S waves A. True B. False 1. All the computer has a power button. CARD #2:Bobby says thedilation can berepresented by(x, y).A figure on acoordinate plane isdilated. Point A(3,9)is dilated to A'l, 3).Betty says thedilation can berepresented by(3x, 3y). TRUE atau FALSE: Singapura mempelopori balapan malam F1 pertama Please help!Having lots of trouble with math :) Triangle P is rotated 180 about (0, 0) to give triangle Q. Triangle Q is translated by 5 2 to give triangle R. (a) Describe fully the single transformation that maps triangle P onto triangle R. GIVING BRAINLEST!What is the location of this point?y-axisx-axis5 3. What is a metaphor?A. giving human traits to animals, nonhuman beings, or inanimate objectsB. a comparison between two unlike things that is impliedC. a comparison between two unlike things using the words like or as What causes an echo? refraction rarefaction reflectionplease help please help me and solve it tu demandes ta mre de faire une galette Solve x/2 - 8 = y for x the stock market crash of 1920 left my grandfather ------- (penny) which statement best describes how enzymes function in the body? A woman skis from rest down a hill 20 m high. If friction is negligible, what is her speed at the bottom of the slope? Select one: O a. 20 m/s O b. 12 m/s O c. 400 m/s O d. 6 m/s Please help! (Only answer if correct) what does the geocentric model of the solar system look like