If f(x) = 2x - 3, find f(-2).

Answers

Answer 1
Given :

f(x) = 2x - 3

To Find :

f(-2) = ?

Solution :

As, f(x) = 2x - 3

Therefore, f(-2) = 2(-2) - 3

[tex]\sf : \implies f(-2) = 2(-2) - 3[/tex]

[tex]\sf : \implies f(-2) = - 4 - 3[/tex]

[tex]\sf : \implies f(-2) = - 7[/tex]

Hence, value of f(-2) is - 7.
Answer 2
Substitute-2 for x in the equation and get 2•-2=-4 then subtract 3 from -4, -4-3=-7 so the answer is -7

Related Questions

3) If y varies directly as x, and x = 4 when y=1/10, write the the direct
variation equation in the form of y = kx. A.2D*

Answers

Answer:

I think it is y= 3x

Step-by-step explanation:


If y = 6, then what is the value of 9 x y?
O 15
O 25
0 44
O 54

Answers

Answer: 54

Step-by-step explanation:

Answer:

54

Step-by-step explanation:

9x6 = 54

An online shopping club has 13000 members when it charges ​$7 per month for membership. For each ​$ monthly increase in membership​ fee, the club loses approximately 500 of its existing members. Write and simplify a function R to represent the monthly revenue received by the club when x represents the price increase.

Hint: Monthly revenue​ = # members•monthly fee

Just a answer with work will do, ill brainliest the best one.

Answers

Answer:

The function is: [tex]R(x)=(13000-500x)[/tex] × [tex](7 + x)[/tex]

Step-by-step explanation:

Total members=13000

Membership charge per month=$7

Increase in Membership charge per month=$1

For each $1 monthly increase in membership fee, the club loses approximately=500 members

For 1 month, 1 dollar decrease is 500 × 1

For x months, the decrease in the members is 500 × [tex]x[/tex] =[tex]500x[/tex]

The increase in membership fee is 7 + [tex]x[/tex]

After that,

Monthly revenue = Number of members × Monthly fee

Monthly revenue = [tex](13000-500x)[/tex] × [tex](7 + x)[/tex]

[tex]R(x)=(13000-500x)[/tex] × [tex](7 + x)[/tex]

Hope this helps and have a nice day!

please help with this

Answers

Answer:

-11

Step-by-step explanation:

-11 its the correct answer

Help please! Number 11

Answers

Answer:

A

Step-by-step explanation:

I believe the answer is A because in MNL it tells the letters of all the angles as well as LMN. Since the total amount of degrees in MNL is the same as LMN I believe that the answer is A.

∠MNL = ∠LMN

Hope this Helps!!! :)

75 POINTS!!!

An event organizer found that 70% of young couples prefer to have indoor weddings instead of outdoor weddings. You want to survey three randomly chosen couples and use the results to find the estimated probability that all three couples prefer indoor weddings.
This scenario can be simulated by generating a set of three numbers using a number generator with numbers
. The numbers
would represent couples who prefer indoor weddings. If all three numbers in the set are in the range
, it would mean that all three couples prefer indoor weddings.

Answers

Answer:

1. 0-9

2. 0-6

3. 0-6

Step-by-step explanation:

This scenario can be simulated by generating a set of three numbers using a number generator with numbers 0-9. The numbers 0-6 would represent couples who prefer indoor weddings. If all three numbers in the set are in the range 0-6, it would mean that all three couples prefer indoor weddings.

(ik you might not need this anymore, but I'm hoping it proves useful to others)

All three numbers in the set are in the range it would mean that all three couples prefer indoor weddings is  0-9, 0-6 and 0-6.

We have given that,

An event organizer found that 70% of young couples prefer to have indoor weddings instead of outdoor weddings.

What is the range?

The Range is the difference between the lowest and highest values.

This scenario can be simulated by generating a set of three numbers using a number generator with numbers 0-9. The numbers 0-6 would represent couples who prefer indoor weddings. If all three numbers in the set are in the range 0-6, it would mean that all three couples prefer indoor weddings.

To learn more about the range visit:

https://brainly.com/question/2264373

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which set of numbers does -7 belongs to

Answers

Do you have the whole question? The problem that you gave does not have a problem....

a sculptor needs to lift a peice of marble its a cuboid with dimentions 1m by 0.6m by 0.3 m, marble has a density of 2.7g/cm cubed

Answers

Answer:

486 kg

Step-by-step explanation:

After learning how to fly, Wendy reduced her daily commute time by
75
%
75%75, percent. Previously, her commute took
m
mm minutes.

Answers

Answer:

3/4m

Step-by-step explanation:

help me please , I appreciate it :))

Answers

the answer is 10x + 40
it would be 10x+40 because 5x2 = 10 and 8x5 = 40 so 10x+40

Petra jogs 6 miles in 54 min. Fine the unit rate in minutes per mile

Answers

Answer:

the answer is 9

Step-by-step explanation:

because when you divide 54 by 6 you get 9

An equilateral triangle has a perimeter of 42. What is it's height?

Answers

Answer:

Given that: The perimeter of the equilateral triangle is 42 inches. Side of the triangle=Perimeter/3=42/3=14 inches. The height of the triangle is 12 inches

Step-by-step explanation:

12 inches hope it helps

That person that answered your question is right

Which fractions have a least common denominator of 12? 1 A.2 and 3 2 B. 1 5 and 2 6 1 C. 5 and 9 5 1 D.2 and 3 4​

Answers


The answer is b. 15

A bag contains red and green marbles of equal size. There are more red marbles than green marbles in the bag. A marble is chosen from the bag without looking. Which point could represent the probability that a red marble is chosen? A B C D E

Answers

A because it is the best method for studying for exams and exams in the or so that is not working as well in the form for the test to get a

Hunter plans to borrow $5,500 from the bank to purchase a used vehicle. If he borrows the money at a rate of 3% interest for 4 years, what is the total amount he will have to pay back to the bank?

Answers

Answer: $ 6160

Step-by-step explanation:

Total money he will pay back = Principal + Interest

Simple interest = Principal x Rate x Time

i.e. Total amount need to pay = Principal + (Principal x Rate x Time)

= Principal (1+ Rate x Time)

Given: Principal =  $5,500, Rate = 3%=0.03 , Time = 4 years

Total amount need to pay = [tex]5500(1+(0.03)(4))[/tex]

[tex]= 5500(1+0.12)\\= 5500(1.12)\\=\$6160[/tex]

Hence,  the total amount he will have to pay back to the bank = $ 6160

is 64ft close to 100.48ft or 401.92ft or 200.96ft or 3,215.36ft

Answers

64ft is closer to 100.48ft (because there is a shorter distance between them on a number line).

I’ll mark brainiest please help

Answers

Answer:

idrk

Step-by-step explanation:

1 5/18 + 1 5/18 + 17/18 + 17/18

Answers

Answer:

4.444

Step-by-step explanation:

mark me brainliest plz

John went to a friend’s house to spend his free time in an evening. Which unit of measure should be used to find the distance between the two houses?
A. milliliters
B. tons
C. kilograms
D. miles

Answers

Answer:

miles

Step-by-step explanation:

Answer:

I think Its D.

Step-by-step explanation:

Its not A because milliliters measures with graduated cylinder and stuff like that.

It's not B because tons is capacity.

Finally, it's not C because kilograms measures weight as well, so that will leave you with the answer D- Miles.

Have a Nice Day!!!!!!!!!!

A child tosses a baseball up into the air. On its way down, it gets caught in a tree for several seconds before falling down to the ground.

Sketch a graph that represents the height of the ball, as a function of time.

Be sure to include a label and a scale for each axis.
PLEASE HELP MEEE!!!!

this is due today at 12 help!!
(image included)

Answers

Answer:

most likely asking for something like this

Step-by-step explanation:

Answer:

Read the step-by-step for the entire answer!!!

Step-by-step explanation:

Whenever you have situations like these you have to look at it from the perspective given.

If you are throwing a ball it's going to start at ground 0 where the child is, therefore the height of the child is how high off the ground the ball is at 0 seconds.

If it is thrown, and it is stuck in the tree for a few seconds, then that means on the graph you will see an incline of the graph, and then a stale line for a few seconds as the ball is stuck in the same height for a few seconds.

After the ball falls down, then so will the height of the ball.

t - a function of time, is always on the x-axis because time variables are usually on the x-axis of a graph.

I choose seconds as a measurement of time because in a realistic situation a ball will be in the air for seconds.

h - the height of the ball, will be on the y-axis of the graph because it is a dependent variable (i.e. the height of the ball is dependent on how long the ball is in the air for).      

The image below is the graph.  

If someone gives me an answer to my question, and the answer is wrong, they’re automatically stuped

Answers

Answer:

Where is the question?

Step-by-step explanation:

Answer:

lol XD

True tho

Help ME fast and pls

Answers

Answer:

the first one is 8 and 9

the second one is 13 and 14

Step-by-step explanation:

8^2 is equal to the square root of 64 and 9^2 is equal to the square root of 81.

13^2 is equal to the square root of 169 and 14^2 is equal to the square root of 196.

hope this helps and is correct.

The profit P (in dollars) from selling x calculators is P=25x-10x+250. How many calculators are sold when the profit is $430?

Answers

Answer:

Step-by-step explanation:

425=25x-10x-250

675=15x

x=45

45 calculators were sold.

Mark brainliest please if this answer work please

Mark was thinking of a number mark halves the number and gets an answer of 53.2 form an equations with x from the information

Answers

Answer: The number is 106.4

Step-by-step explanation:

Let the number be x

Mar halves the number becomes = x x 1/2  to get 53.2

The equation to solve this problem is  x/ 2 = 53.2

Such that to find x

x/2= 53.2

x =  2 x 53.2= 106.4

The number is 106.4

The vertex of this parabola is at (3,5). When the value is 6, the x value is -1.
What is the coefficient of the squared term in the parabola's equation?
(3,5)
10
10
10

Answers

Answer: B -4

Step-by-step explanation:

Value of coefficient of the squared term in the parabola's equation = -4

Correct option is B.

What is parabola?

A parabola is a U-shaped plane curve where any point is at an equal distance from a fixed point (known as the focus) and from a fixed straight line which is known as the directrix.

Given,

Vertex of parabola (h,k) = (3, 5)

y = 6 for x = -1

Parabola opens horizontally left side

Vertex-form equation of parabola

x = a(y - k)² + h

-1 = a(6 - 5)² + 3

-1 = a(1) 3

a = -4

Hence, -4 is value of coefficient of the squared term in the parabola's equation.

Learn more about parabola here:

https://brainly.com/question/21685473

#SPJ7

If you flip a coin and roll a 6-sided die, what is the probability that you will flip a heads and roll a 5?

Answers

Answer:

1/12

Step-by-step explanation:

Please guys this is easy, I need help ASAP! (Giving brainliest)!

Answers

Answer:

4a. 13

4b. -4

Step-by-step explanation:

2x-6/5 = 4 (Muti each side by 5)

2x-6 = 20

2x = 26 (Divide each side by 2)

x = 13

7- 2x/4 = 9

-2x/4 = 2 (Muti each side by 4)

-2x = 8 (Divide each side by -2)

x = -4

Mark had three bags of
jelly beans. If he ate 1/5 of a
bag each day, how long
would his jelly bean supply
last?
Plane

Answers

Answer:

Marks stash of jelly beans would last him 15 days.

Step-by-step explanation:

if you do 3 divided by 1/5 you would get 15.

NEED HELP WILL GIVE BRAINLIEST!

Answers

Answer: a=60

Step-by-step explanation:

The answer is 60 I hope this helps you




2) Ellis thinks of a number.
He multiplies it by 4 and then subtracts 10
The result is 14
What number did Ellis think of?

Answers

Answer:

6

Step-by-step explanation:

6*4-10=14

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