Mathematics High School

f(x)=-x^2-10x

Find f(-5)

Answers

Answer 1

Answer:

25

Step-by-step explanation:

f(x)=-x^2-10x

Let x = -5

f(-5)=-(-5)^2-10(-5)

     = -25+50

      =25

Related Questions

3. Identify the property of real numbers.
The cost of one item sold for $14.50 is $14.50.

Answers

Answer:

$14.50

Step-by-step explanation:

Is the answer because we don't put a decimmel pint after the number

The property of real numbers demonstrated in the given statement is the "Reflexive Property of Equality."

The Reflexive Property of Equality is one of the fundamental properties of real numbers, stating that any real number is always equal to itself. In mathematical terms, for any real number 'a,' the Reflexive Property is expressed as:

a = a

This property is self-evident, as it simply means that any quantity or value is identical to itself. In the provided statement, the cost of one item sold for $14.50 is precisely $14.50, showing that the item's cost is equal to itself.

To further illustrate this concept, consider any real number 'x.' According to the Reflexive Property, we have:

x = x

This applies to all real numbers, whether they are whole numbers, decimals, fractions, negative numbers, or irrational numbers. For example:

1 = 1

5.3 = 5.3

-2 = -2

π = π (pi)

No matter what value 'x' represents, the Reflexive Property holds true for all real numbers. It is a fundamental principle that underpins many mathematical operations and proofs.

In summary, the Reflexive Property of Equality states that any real number is equal to itself. The given statement, "The cost of one item sold for $14.50 is $14.50," exemplifies this property, showing that $14.50 is indeed equal to $14.50, thus reaffirming the reflexive nature of real numbers.

To know more about Property here

https://brainly.com/question/29030415

#SPJ2

please help me with these questions I am begging anyone please help

(a)• production cost of a wooden cupboard is Rs.30,000.the manufacturer marked the price in order to obtain a 20% profit .if the payment is done outright 2% discount is given

questions


(1) what is the marked price of the cupboard?

(2) what is the outright price of the cupboard?

(3) find the price percentage gained by selling the cupboard for outright price ?

(b)• a furniture seller asks for 5% commission to sell 5 cupboard of Rs.35.000 each find the commission he receives



please help me ​

Answers

Answer:

1)rs.6000

Step-by-step explanation:

1)30 000*20/100=rs.6000

Sorry I don't know the answers for other questions cause I don't know outright price

HELP WITH B, C, & D PLS: g(x) = 2x2 + 5x + 1, find: -3g(3)

Answers

B
Answer
24f+7g

Explanation

Multiply each number 4 time 6 equal 24 and 7 time one equal 7…

How tall are redwood trees? ( statistical not statistical​

Answers

Answer:

It's a statistical question.

and there between 250-300 feet.

Solve the equation without using the Distributive Property.
8(x-3)= 16
x -3 =
please show an Example because Im lost... lol

Answers

8(x - 3) = 16

Distributive property says that,

a(b - c) = (a * b) - (a * c)

Using distributive property, you should multiply both the numbers or variables in the bracket.

Which is,

(8 * x) - (8 * 3) = 16

8x - 24 = 16

8x = 16 + 24

8x = 40

Taking 8 from 8x to the LHS from the RHS.

x = 40/8

hence, x = 5

Hope this helps. If you have any questions plz let me know.

-2u+(-1)=-13
---------------

Answers

Answer:

Solution given

-2u+(-1)=-13

open bracket

-2u-1=-13

add 1 on both side

-2u-1+1=-13+1

-2u=-12

divide both side by -2

-2u/-2=-12/-2

u=6

[tex]\huge\text{Hey there!}[/tex]

[tex]\textsf{-2u + (-1) = -13}\\\textsf{-2u - 1 = -13}\\\large\text{ADD 1 to BOTH SIDES}\\\textsf{-2u - 1 + 1 = -13 + 1}\\\large\text{CANCEL out: -1 + 1}\\\large\text{KEEP: -13 + 1}\\\rightarrow\textsf{-2u = -12}\\\large\text{DIVIDE -2 to BOTH SIDES}\\\mathsf{\dfrac{-2u}{-2}= \dfrac{-12}{-2}}\\\textsf{CANCEL out: }\mathsf{\dfrac{-2}{-2}}\\\textsf{KEEP: }\mathsf{\dfrac{-12}{-2}}\\\mathsf{u = \dfrac{-12}{-2}}\\\mathsf{u = \bf 6}\\\huge\boxed{\mathsf{Answer: u = 6}}\huge\checkmark[/tex]

[tex]\large\text{Good luck on your assignment and enjoy your day!}\\\\\frak{Amphitrite1040:)}[/tex]

can someone help I need help lol

Answers

2/3^3=
2^3/3^3=
8/27
Hope helps u

what is the LCM of 4489​

Answers

Answer:

plz mark me brainliest

Step-by-step explanation:

thanks for question

Aisha wants to paint the wall of the room. She knows that each can of the paint contain one gallon. A half gallon will completetly cover a 55 square feet of wall. Each of the four wall of the room is 10 feet high. Two of the walls are 10 feet wide and two of the walls are 15 ft wide. How many one gallons buckets of paint does aisha need to buyin order to paint the room ?

Answers

Answer:

It doesn't say what to do with that 0.1 of a gallon. I would buy another gallon or dilute what I had so it came to exactly 9.1 gallons. In math, I suppose the answer is 9.

In reality it would be 10.

You have to choose.  What has been done with other questions like this.

Step-by-step explanation:

1 can covers 55 square feet.

h = 10

w1 = 10 feet

w2 = 10 feet

w3 = 15 feet

w4 = 15 feet

Total area = Area of wall 1 + wall 2 + wall 3 + wall 4

Total area = 10*10 + 10*10 + 10*15 + 10* 15

Total area = 100  + 100 + 150 + 150

Total area = 500  feet^2

1 gallon / 55 ft^2 = x / 500 ft^2          Cross multiply

55 * x = 500                                       Divide by 55

x = 500/55

x = 9.1 gallons.

In real life you would buy another gallon.

Solve the equation 7 (x+3) = 72-4 how may solutions does it have​

Answers

Answer:

x = 47/7 or 6.714

Step-by-step explanation:

7 (x+3) = 72-4

7x + 21 = 68

7x = 68 - 21

7x = 47

x = 47/7 or 6.714

سر
.
A particular satellite is 15 m wide. A model
of it was built with a scale of 1 cm: 5 m.
How wide is the model?

Answers

Answer:

3cm

Step-by-step explanation:

A particular satellite is 15 m wide

Model of it was built with a scale of 1 cm: 5 m

=> scale of the model will be: 1/500cm and  A particular satellite is 1500 cm wide

=>1500*1/500=3(cm)

In a hotel, 40 people occupy excatly 26 rooms. Each room is occupied by either one or two people. How many rooms are occupied by exactly one person?

Answers

Answer:  12 rooms

Explanation:

Let's say that the first 26 people will occupy each of the 26 rooms. This means that, so far, there's one person per room.

There are 40-26 = 14 people left. Let's say those 14 people occupy the first 14 rooms. This means that the first 14 rooms now have 2 people in them per room. The remaining 26-14 = 12 rooms still have one person per room.

A student’s incorrect attempt to simplify an exponential expression is show in the box

What is his mistake!!!!!

Answers

Answer:

A

Step-by-step explanation:

x^a/x^b=x^(a-b). General rule of exponents

Im bad at money :/ do please help me

Answers

The third answer

1 quarter, 6 dimes, 1 nickel, 7 pennies

Unit 1 : Algebra basics Homework 1: the real numbers

Answers

Real numbers may be explained as all set of numbers which may be used for counting, fractions or decimals. Real numbers may be any set of natural, whole, integer, rational or irrational numbers.

• NATURAL NUMBERS which are all set of positive whole numbers from 1. Examples : (1, 3, 5, 8, 100)

• WHOLE NUMBER are set of all natural numbers .while numbers also include the value value (0, 1, 200, 500) are whole numbers

• INTEGERS : include all positive and negative natural or whole number values. They include (-1, - 10, 10, 5)

• RATIONAL numbers are real numbers which can be expressed in the form m/n where both m and n are integer values and the denominator, n ≠ 0 Examples : (1/2, 0.9, 10/1, √4, 3.5)

• IRRATIONAL numbers are real numbers which are not integer values and cannot be expressed in the form m/n Non-terminating and non-repeating decimal numbers are IRRATIONAL numbers. (√3, 1.43136..., 1.4141..., π)

Learn about similar question on : brainly.com/question/5305024

Is this right answer??

Answers

Yes that is correct

Y=DB-3 solve for d. These equations are still tricky for me.

Answers

add 3 to both sides, this gives y + 3 = db

then divide both sides by b, this gives (y + 3)/b = d

Can someone please help me!

Answers

Step-by-step explanation:

x1=6

y1=8

x2=1

y2=6

then ,

distance =

[tex] \sqrt{(6 - 1) {?}^{2} { + (8 - 6)}^{2} } \\ \sqrt{25 + [/tex]

if f(x)=x-4 find the value if f(x)+f(-x) ​

Answers

Answer:

2x

Step-by-step explanation:

f(x) = x -4

Step 1:

y = x - 4

Step 2: Replace y with x

x = y - 4

Step 3: Find y

x + 4 = y  

f(-x) = x + 4

f(x) + f(-x) = (x - 4)+ (x + 4) = 2x

2/9+1/3 thx for helping I need ASAP

Answers

Step-by-step explanation:

[tex] \frac{2}{9} + \frac{1}{3} \\ by \: taking \: out \: the \: lcm \: of \: 9 \: and \: 3 \: \\ we \: get \: 9\: as \: lcm \\ now \\ \frac{2 \times 1 + 1 \times 3}{9} \\ \frac{2 + 3}{9} \\ \frac{5}{9} [/tex]

an acute angle is an angle which is_______

Answers

Answer:

less then 90º

Step-by-step explanation:

an acute angle is an angle which is less then 90º

Less than a 90 degree angle

What’s -2 + -9 =
please help me because tomorrow i have a test in math class , about integers and someone please explain too me . thank you if anyone can help

Answers

Negative 2 plus Negative 9 is negative 11. You are adding to negative integers, therefore it will get less.

Answer:

-11

Step-by-step explanation:

-2+-9=

add like terms

-11

need help on calculus

Answers

Answer: 3

Step-by-step explanation:

Can someone help me with problem 6 and 7? Please explain I am confused

Answers

This is interesting. You cannot turn 1/4 or 2/4 or 3/4 into a mixed number because they are proper fractions. Perhaps ask your teacher about it? Or just rewrite the fractions as is and state they are in proper form.

Same with 7. They are each simplified already. I would suggest asking your teacher.

Show work please

[tex]4 \sqrt{9} [/tex]
​

Answers

Answer:

12

Step-by-step explanation:

[tex]4 \sqrt{9} [/tex]

[tex] \sqrt{9} = \sqrt{ {3}^{2} } = 3[/tex]

[tex]4 \times 3[/tex]

[tex] = 12[/tex]

Find the value of ab when a=1/10 and b=7/10​

Answers

Answer:

7/100

Step-by-step explanation:

ab = (a) x (b) = (1/10) x (7/10) = 7/100

Solve the x 2/3x +5 1/2 = -10

Answers

Answer:

x = 2/3x + 5 1/2 = -10 = x = -93/4

Step-by-step explanation:

Frances earns $9.25 an hour at his part-time job. Last week he worked 16 hours.
What was his gross pay for the week?

Answers

Answer:

$148

Step-by-step explanation:

$9.25 x 16 hours = $148

The answer will be £148

On Monday the price of gas is $3.50 on Tuesday the price drop my $.50 and I won’t say the price increase by $.65 or I am Santa edition equation to show final price of gas

Answers

If on Monday it is $3.50 and the price dropped down on Tuesday by $.50 It would be $3.00 if on Wednesday it increases by $.65 it would be $3.65

0<4K-5k

Can I get some help thanks

Answers

Answer:

0>k

Step-by-step explanation:

0<4k-5k

Combine like terms

0<-k

Multiply each side by -1, remembering to flip the inequality

0>k

Other Questions
explain the story of two incidents in the essay nature is not always kind by Helen keller Name the factors influencing agriculture? Which of the h values are solutions to the following equation?h^2=0.36Choose all answers that apply:A: h= square root of 0.6B: h = square root of -0.6C: h = 0.18D:h = -0.18E: None of the above tides occurs in oceans but not in lakes.why? EX1:Chuyn nhng cu sau sang cu bng1. We don't use this kind of cloth to makeshirts.2. My grandmother is knitting a new sweater forme.3. You mustn't use this machine after 5.30o'clock.4. Somebody has taken mybriefcase.5. Tom is writing twopoems at the moment.6. They will hold the meeting before MayDay.7. People spend a lot of money on advertising everyday.8. The teacher returned our written work tous.9. The children are going to organize a surpriseparty.10. She often takes her dog for a walk everymorning.EX2Chuyn nhng cu sau sang cu bng1. Doctor Zhang Jixian found Corona viruses in Wuhan in 2019. Corona viruses2. Dr. Martin Cooper invented the first mobile phone in 1973. The first mobile .3. The law of supply and demand should govern the prices of goods->The prices4. Khac Hung musician composed Ghen co vy song three months ago.->Ghen co vy song 5. My mom watched these films last week->These films..............................................................................................6. They will hold the meeting before MayDay.- The meeting...........................................................................................7. My teacher made us study hard for our exam. -> We were .......8. France presented the Statue of Liberty to the USA in 1876.-> The Statue of Liberty 9. We will plant more trees along this street. -> More trees 10. Huong Tram performs the song Em gai mua very beautifully.-> The song Em gai mua11. They didnt invite Nam and Minh to the party. Nam and Minh 12. They built a big villa near my house.-> A big villa..................................................................13. My sister gave me a new pair of jeans on my sixteenth birthday.-> I..................................................................................................................................14. My father planted that tree in the garden last spring.-> That tree was 15. France presented the Statue of Liberty to the USA in 1876. The Statue of Liberty .16. My mother bought this book two years ago. This book 17. His parents will send him abroad. He will .18. All the students have to take the final exam.The final exam19. They have already finished the homework.The homework ..20. They are going to build a swimming pool in this area next month.A swimming 21. They built this factory two years ago.This factory ...............................................................22. "I dont buy this book., my brother said. My brother said .. .. .. 23. All the students have to take the final exam.The final exam24. People will have to repair all the doors of the old house tomorrow.All the doors.........................................................................................25. The fire destroyed almost all the houses in the neighbourhood. Almost all the houses .. How would you write 5x5x5x5x5x5 in exponential form Illustrate the law of law of multiple proportions using the formation of SO2 and SO3 by sulphur and oxygen What are the challenges the economy face from skilled migrants? Chemical changes can change which properties of a substance?Group of answer choicesReactivityColorMalleabilityAll of the above Match each ecosystem with its location.Match Term DefinitionAlpine A) High mountain rangesTundra B) Eastern United StatesGrassland C) Alaska and Northern CanadaDeciduous forest D) Central United StatesDesert E) Southwestern United States What is the area of a rectangle with a length of 5 cm and a width of 3 cm What initially caused the creation of trade across Eurasia? (this would later become the Silk Roads) With 4 weeks remaining in the season, Lisa has 31 more homeruns than Mark. If Mark is to hit more homeruns than Lisa, he must average at least how many more homeruns per week than Lisa? Freezing water cracking limestone aChemical Change bPhysical Change An object travels back and forth along a straight line. Its velocity, in centimeters per second, is given by thefunction v(t)= 13 sin(pi/(45)t), where t is time in seconds.What is the maximum velocity of the object?O 0 cm/sO 13 cm/sO 26 cm/sO 90 cm/s Summarize in one sentence the attractions Cape Town has for the visitors, according to the passage Help anyone can help me do this question,I will mark brainlest. There were loud _________ from the audience when the compere announced that the main group were unable to perform because of illness.a.outcry b. wolf whitsles c. catcalls d. hoots Select the correct answer Which sentence uses an adjective to answer the question how many A) no one is allowed to enter B) my sister plays in a rock band C) please hand me the blue blanket D) I dont like to watch sad movie 4 1/6 = 3 1/3cWAHT?!? HOW IN THE WORLD DO YOU EVEN DO THIS?!?