let the function be f defined by f (x) = 12 - 5x
(a) is it true that f (0) = 0 ? explain why or why not.
(b) evaluate f (-1)
(c) what value of a will make the equation f (a) = 6 true?

Answers

Answer 1
a) not true. when x=0 f(x)=12.
we know this because plugging in 0 for x leaves you w 12.
b) 17.
plug in -1 for x. -5(-1) is 5. 12+5=17
i hope this is right

Related Questions

I need help on a math assignment.

Answers

Answer:

(18 , - 10)

Step-by-step explanation:

5x + 4y = 50 .... (1)

x + 2y = - 2 ... (2)

Solve (2) for "x"

x = - 2y - 2 .... (3)

(3) ----> (1)

5(- 2y - 2) + 4y = 50 ⇔ - 6y - 10 = 50 ⇒ y = - 10 .... (4)

(4) ----> (2)

x + 2(- 10) = - 2 ⇒ x = 18

(18, - 10)

the answer is (18, -7). Hope this helps :)

Brainliest FAST & CORRECT!!!

Answers

Answer:

oop

Step-by-step explanation:

Answer:

It is the 4th choice mark me brainliest

Step-by-step explanation:


What is the slope of a line with the equation y = -x + 6?

Answers

ANSWER

slope= -1/1 or -1

a standard bathtub holds 70 gallons of water on average it takes 7 and 1.5 minutes a bathtub how many gallons go down the drain each minute

Answers

Answer:

jrir4hut4hgu8

Step-by-step explanation:

Look at the picture

Adding & Subtracting Polynomials need help

Answers

Answer:

aisuejejrfjtntn

Step-by-step explanation:

Which decimal is less than 0.8 and greater than 0.02?
 A. 0.81
 B. 0.46
 C. 0.86
 D. 0.006

Answers

Answer:

the answer would be d

which is 0.006

Jonas went to the store and bought 2 boxes of cereal for $2.79 each, a box of fruit snacks for $1.89, a gallon of milk for $3.19. Sales tax was $1.05. If Jonas pays with a 20-dollar bill, how much change will he receive

Answers

Answer:

$8.29

Step-by-step explanation:

2(2.79) + 1.89 + 3.19 = 10.66

10.66 + 1.05 = 11.71

20 - 11.71 = 8.29

can i get a thanks and brainliest please?

Solve for x

7x = -27

Give your answer as an improper fraction in its simplest form.

Answers

Answer:

[tex] - \frac{27}{7} [/tex]

Step-by-step explanation:

We want to get x alone so we need to get rid of the 7 in front of it.

7x=-27

Divide each side by 7

x= -27/7

This can't be simplified anymore so this is your answer.

The answer is -27/7

Hope this helps!

The anderson family has many pets.They have 5 dogs,3 cats, and 2 rabbits.The ratio compare the number of rabbits to the number of dogs is _____ to _____

Answers

Answer: 2:5

Step-by-step explanation: There are 2 rabbits and 5 dogs.

Write an equation in slope intercept form for the line that satisfies each set of conditions. Has y intercept -2 , parallel to the line that y=2x+4

Answers

y = 2x - 2

is the parallel line has a slip of 2 then your line has a slip of 2.

solve as multi step eqaution 42 = 3(2y - 4)

Answers

It is 9 bro mental math


8x - 5y = -6
6x + 2y = -16

Answers

Answer:

both x and y are -2 in this case

Kelsey has a new baby brother! He weighs 8 lbs 3 oz. The doctor said the baby should gain about 5 ounces per week. At that rate, how much should the baby weigh-in 3 months (12 weeks)?

Answers

Equation: 0.5x + 8.3
Plug in 12 for x and solve

Whats the slope ? Please answer

Answers

Answer:

slope = 1

Step-by-step explanation:

slope = rise over run

1 rise for every run

y = x +1

-19.86 as A Fraction: How did you do it?
Need Help Please!!

Answers

Answer: -993/50 or -19 43/50

Step-by-step explanation:

-19.86 = -19 86/100

-19 86/100 = -19 43/50

or -993/50

Evaluate the expression.

|23 – 4|

Answers

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

[tex] |4 - 23| = - (4 - 23) = [/tex]

[tex]23 - 4 = 23 - 3 - 1 = [/tex]

[tex]20 - 1 = 19[/tex]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

he distance between 314 and −134

Answers

Answer:

i am pretty sure its 180

Step-by-step explanation:

mark me brainliest plz so close to next rank

A student group sells 500 raffle tickets for $2 each. At the drawing the top prize will be
a gift certificate for $100. Second prize will be a $50 gift card and there will be five 3rd
prizes, each a $20 gift card. Do you expect to win or lose (on average)? How much?

Answers

Answer:

Step-by-step explanation:

if there are 500 tixets and 7 prizes (1 top prize+1 second prize+5 third prize) your chances of wining are 7/500=0.014 or 1.4% chance

with a 1.4% chance of win and a 98.6% chance to loose in average you can expect to loose.

I don’t know how to do this

Answers

Answer:Umm, its upside down, so if you post a new question with it right side up then i will be glad to help you!

Step-by-step explanation:Im bored...

I don’t understand it’s upside down

Jesus is the son, the spirit, and the Living of God! ...

Answers

Answer:

Yessir he's coming soon

Step-by-step explanation:

A swing set was originally priced at $920, but Desmond waited to buy it until the swing set was on sale for 25% off. If he paid 10% sales tax on the sale price, how much did he pay in total?

Answers

$759 total. 25% of $920 is $230. 920-230= $690. 10% of 690 is $69. $690+$69 = $759.

Identifying values in the domain, probs really easy for you!

Answers

Answer:

Not

Not

In domain

Step-by-step explanation:

u cannot square root a negative number as you'll get a complex number, making h(x) undefined

i dontt get it plse hellp meeee

Answers

Answer:

there is nothing here

Step-by-step explanation:

Answer:

-2

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    1/3*(x-10)-(-4)=0

Step by step solution :

STEP

1

:

           1

Simplify   —

           3

Equation at the end of step

1

:

  1                

 (— • (x - 10)) -  -4  = 0

  3                

STEP

2

:

Equation at the end of step 2

 (x - 10)    

 ———————— -  -4  = 0

    3        

STEP

3

:

Rewriting the whole as an Equivalent Fraction

3.1   Subtracting a whole from a fraction

Rewrite the whole as a fraction using  3  as the denominator :

         -4     -4 • 3

   -4 =  ——  =  ——————

         1        3  

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

3.2       Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

(x-10) - (-4 • 3)     x + 2

—————————————————  =  —————

        3               3  

Equation at the end of step

3

:

 x + 2

 —————  = 0

   3  

STEP

4

:

When a fraction equals zero :

4.1    When a fraction equals zero ...

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.

Here's how:

 x+2

 ——— • 3 = 0 • 3

  3

Now, on the left hand side, the  3  cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

  x+2  = 0

Solving a Single Variable Equation:

4.2      Solve  :    x+2 = 0

Subtract  2  from both sides of the equation :

                     x = -2

One solution was found :

x = -2

Evaluate: 476.8 - 54.32 + 16.54 - (-12.23)

A) 559.89

B) 410.25

C) 426.79

D) 451.25
NEED HELP ASAP

Answers

The answer is D I’m almost 100% sure

Describe how to evaluate and then evaluate
the following power: 81 3/2​

Answers

Answer:729

Step-by-step explanation:

81^3/2

(3^4)^3/2

3^6

729

Complete the like terms to create an equvalent expression:
-4r - 2r + 5

Answers

-6r+5
the two like terms are the ones with R. combine -4r and -2r to get -6r

A soccer coach filled a water cooler with 34.07 liters of water before a game. The players drank 29.6 liters during their game. How many liters of water were left in the cooler?

Answers

Answer:

4.47 liters

Step-by-step explanation:

To find how many liters were left, subtract the amount they drank from the original amount:

34.07 - 29.6

= 4.47

So, there were 4.47 liters of water left in the cooler.

After players drank 29.6 liters of water from 34.07 liters there is 4.47 liters of water left in the cooler.

What are some alternative names for arithmetic operations?

Addition is also known as the sum, subtraction is also known as the difference, multiplication is also known as the product, and division is also known as the factor.

Given, A soccer coach filled a water cooler with 34.07 liters of water before a game.

The players drank 29.6 liters during their game.

∴ Liters of water that is left in the cooler is the difference between water-filled before the game to the water drank by players during their game which is,

= (34.07 - 29.6).

= 4.47 liters are left in the cooler.

learn more about arithmetic operations here :

https://brainly.com/question/20595275

#SPJ2

Choose the appropriate transformation for the figure
Picture above ***

Answers

Answer :

Rotation :)

Need help ASAP Select all numbers that are irrational

Answers

Answer:

The 3rd and 4th ones :))

The only irrational number there is π.

Del has 12 less than 3 times the number of comic books as Patrick. Del has at most 57 comic books. What solution represents the number of comic books, b, Patrick can have?

Answers

Answer:

Del has 19 comic book

Step-by-step explanation:

to figure this out we need to take 57 and divide by the 3 given.

57 ÷ 3 = 19

so because we divided 57 by 3 we know the answer is 19

Del has 19 comic books

Other Questions
Point A is located in which quadrant? Escribe un resumen sobre el video de hola llamigo SOOOOO WHATCHA THINK?? Please Help What is the polar form of -9 square root 3 EndRoot + 9 i?A. 18(cos(120) + isin(120))B. 18(cos(150) + isin(150))C. 324(cos(120) + isin(120))D. 324(cos(150) + isin(150)) If a polynomial has a root of 2, what FACTOR will divide evenly into the polynomial? How do we represent a shared pair of electrons when drawing the Lewis structure of a covalent bond I have a question please help ;w; Do you know the answer? Order the steps for the correct path to adding defined names into a formula. Enter an equal sign into the cell. Type an open parenthesis and enter named cells instead of location. Type the function in caps. Please help me and Ill give you brainiest!!!!!!!!! Have a wonderful day!!:))) A batted ball lands in the infield in fair territory and then rolls untouched into foul territoryIs it Foul or Fair At a hockey game, a vender sold a combined total of 156 sodas and hot dogs. The number of sodas sold was two times the number of hot dogs sold. Find the number of sodas and the number of hot dogs sold. Write in Third person1) debes2)quieres3)sabes4)quiero5)soy6)quieres7)piensas8)diga Please help me I dont know which number goes first like 0,-5 or is it -5,0 Why are craftsman likely to produce fewer goods than modern manufacturers produce?They do less intensive labor than manufacturing.They are not organized into uniorhsThey are considered unskilled laborers.They do more intensive labor than manufacturingNEXT QUESTIONASK FOR HELP The number that represents a neutral pH is _______.Numerical Answers Expected!Answer for Blank 1: _______________ Need help ASAP will mark BRAINLIESTAn essay is titled my favorite history an account of the lives of my family members from 1800 to the present. which would be the most effective type of organizational aid to use for this essay.*web organizer*order of important sequence chart *a timeline *Venn diagram please help idk what to do Which of the following is a Pythagorean triple?A. (5, 12, 15)B. (8, 9, 10)C (8, 15, 17)D. (3, 3, 6) What is a reason that the principle is important to citizens?