If f(x) = 7x - 3, then f(4) = ?

Answers

Answer 1

Step-by-step explanation:

7(4)-3=25

i hope it will help


Related Questions

All of the following are equivalent, except _____.

(8 + 3)x
11x²
11x
8x + 3x






hellllllllllllppppppppppp

Answers

Answer:  B)   11x^2

Explanation:

Choice A combines to 11x since the 8+3 simplifies to 11.

Choice D is a very similar story. Think of having 8 boxes, which we denote in shorthand as 8x. Then adding on 3 more boxes leads to adding on 3x. Having 8 boxes plus another 3 boxes gives 8+3 = 11 boxes total. So that's why 8x+3x = 11x. Alternatively, we can factor out the x to say 8x+3x = (8+3)x.

This shows choices A,C, and D are equivalent expressions. Choice B is the odd one out.

(x-2)= - 1/4(x-8) what does x equal?

Answers

Answer:

16/5 or 3 1/5 i think

Step-by-step explanation:

Answer:

x = 16/5.

As a decimal this would be x = 3.2.

Step-by-step explanation:

On the right, distribute the -1/4 to the (x - 8). Do this by multiplying -1/4 to each term in the parenthesis. Then, solve for x by combining like terms.

I’ll give brainliest
At Silver Gym, membership is $25 per month, and personal training sessions are $40 each. At Fit Factor, membership is $55 per month, and personal training sessions are $30 each. In one month, how many personal training sessions would Sarah have to buy to make the total cost at the two gyms equal?

Answers

I’m not sure if this answer.

Sumalee and Scott each improved their yards by planting daylilies and ivy. They bought their
supplies from the same store. Sumalee spent $93 on 6 daylilies and 3 pots of ivy. Scott spent
$196 on 13 daylilies and 6 pots of ivy. Find the cost of one daylily and the cost of one pot of ivy.

Answers

Answer:

The cost of one daylily is $10 and the cost of one pot of ivy is $11

Step-by-step explanation:

To solve the question we will form a system of equations

Assume that the cost of 1 daylily is x and the cost of 1 pot of ivy is y

∵ Sumalee spent $93 on 6 daylilies and 3 pots of ivy

→ Multiply x by 6, y by 3, then add the products and equate the sum by 93

6x + 3y = 93 ⇒ (1)

∵ Scott spent $196 on 13 daylilies and 6 pots of ivy

→ Multiply x by 13, y by 6, then add the products and equate the sum by 196

13x + 6y = 196 ⇒ (2)

Now we have a system of equations to solve it

→ Multiply equation (1) by -2

∵ -2(6x) + -2(3y) = -2(93)

-12x - 6y = -186 ⇒ (3)

→ Add equations (2) and (3)

(13x + -12x) + (6y + -6y) = (196 + - 186)

∴ x + 0 = 10

x = 10

→ Substitute the value of x in equation (1) to find the value of y

6(10) + 3y = 93

∴ 60 + 3y = 93

→ Subtract 60 from both sides

∵ 60 - 60 + 3y = 93 - 60

∴ 3y = 33

→ Divide both sides by 3

y = 11

The cost of one daylily is $10 and the cost of one pot of ivy is $11

Find the value of x in the
following parallelogram:
2x - 1
11
7
x = [?]

Answers

Answer:

[tex]x = 4[/tex]

Step-by-step explanation:

See attachment for complete question

From the attachment, the parallelogram has two diagonals. And the diagonals of a parallelogram bisect one another.

Because 2x - 1 and 7 are opposite sides of a diagonal; We can say that:

[tex]2x - 1= 7[/tex]

Add 1 to both sides

[tex]2x - 1 + 1 = 7 + 1[/tex]

[tex]2x = 8[/tex]

Divide through by 2

[tex]x = 4[/tex]

someone please help me. show your work for brainliest.

find the center and radius of the circle represented by the equation x^2 + y^2 - 4y - 8 = 0

Answers

Answer:

Attached file

Step-by-step explanation:

rewrite as as whole number 40/5

Answers

Answer:

8

Step-by-step explanation:

Just do 40 divided by 5.

Help I forgot! How do you find slope? I have the change, but need the slope!

Answers

Answer:

(y2 - y1)/(x2-x1)

Step-by-step explanation:

if you have 2 points (x1,x2) and (y1,y2), just plug it in the formula for slope m

m = (y2 - y1)/(x2-x1)

rise over run! count the rise and count the run and make it a fraction and solve

HELP ILL GIVE BRAINLIEST AND POINTS
Find the percent decrease. Where necessary round to the nearest tenth of a percent

1. from 60 to 48

2. from 180 to 108

3. from 64 to 24

4. from 6.5 to 4.8

5. The average cost of a gallon of gasoline was $1.29 in 1997 and $1.12 in 1998. Find the percent of decrease.

Answers

Answer:

Hey, ill do like 2 and you can do the rest

percent decrease or change is

new-old over old

So like #1

1) 60 is old, 48 is new

so 48-60=-12

now over old which is 60

-12/60

-1/5

20 percent decrease

2) 180 is old, 108 is new

108-180=-72

-72/180

40 percent decrease

Step-by-step explanation:

(Use Solving Systems by Graphing to find a solution for this question)
One cellphone provider DU charges AED10 per month plus an activation fee of AED20. A second cellphone provider ETISALAT charges AED11 per month plus an activation fee of AED15. For what number of months is the cost of either cellphone provider the same?

Answers

Answer:

5 months

Step-by-step explanation:

One cellphone provider charges AED10 per month plus an activation fee of AED20.

If I used the services of this cellphone provider for x months, total charges for the services,

y = 10x + 20 --------(1)

Similarly, charges for the second cellphone provider for x months of uses will be,

y = 11x + 15 -------(2)

Input-output table for equation (1)

x      1           2            3            4            5

y     30        40         50          60          70

Input output table for equation (2)

x      1           2            3            4            5

y     26        37          48          59         70

From these tables, we find (5, 70) is a common point for both.

It reveals that after the uses of 5 months charges for both the cellphone providers will be same (y = $70)

Andy, Fergus, Evelyn, and Margaret are collecting cans for recycling. Before lunch they have collected a total of 173 cans. At the end of the day, the total number of cans collected can be represented by the expression 173 + n . What does the variable n in the expression represent?

Answers

Answer:

n = The number of can collected after lunch

Step-by-step explanation:

Andy, Fergus, Evelyn, and Margaret are collecting cans for recycling.

From the question, the told number rod cans collected before lunch = n

We are told that :

At the end of the day, the total number of cans collected can be represented by the expression 173 + n .

The total number of cans = Number of cans collected before lunch + Number of cans collected after Lunch

Hence:

173 + n = 173 + Number of cans collected after Lunch

Therefore, the variable n = Number of cans collected after Lunch

What is the equation of the line that passes through the point (3,5) and has a slope
of 2?

Answers

Answer:

y-5=2(x-3)

Step-by-step explanation:

y-y1=m(x-x1)

Answer:

y=2x-1

Step-by-step explanation:

trust me, it's that

plzzzzzzzz help
The regular price of a coat is $35.25. During a sale, the coat rang up for $19.99. What was the percent off of the coat during the sale? (5 points)

a
The sale was for a 43% decrease.

b
The sale was for a 76% increase.

c
The sale was for a 76% decrease.

d
The sale was for a 43% increase.

Answers

Answer:

a

The sale was for a 43% decrease.

Step-by-step explanation:

The computation of the percent off of the coat during the sale is shown below:

Regular price is $35.25

And, in the sale the price is $19.99

So, the percent off would be

= ($35.25 - $19.99) ÷ ($19.99)

= 43% decrease

hence, the percent off of the coat during the sale is 43% decrease

Therefore the correct option is a.

And, all the other options are incorrect

least common multiple of 12 and 3

Answers

Answer:

Answer is 12

12x1=12

3x4=12

Step-by-step explanation:

Its the least number.

Answer:

It is exactly 12

Step-by-step explanation:

I hope this helped you

Can i get branliest and heart please

Thanks!

Muriel says she has written a system of two linear equations that has an infinite number of solutions. One of the equations of the system is 3y = 2x – 9. Which could be the other equation? 2y = x – 4.5 y = y equals StartFraction 2 over 3 EndFraction x minus 3.x – 3 6y = 6x – 27 y = y equals StartFraction 3 over 2 EndFraction x minus 4.5.x – 4.5

Answers

Answer:

B is correct

Step-by-step explanation: an infinite number of solutions means a coincident line...it is the same line

3y = 2x - 9...divide by 3

y = 2/3x - 3...hmm...same line as answer choice b....they are coincident lines and have infinite solutions

Answer:

the answer is B).

Step-by-step explanation:

someone deleted my answer:(

Write ✓-49 as an imaginary number using i.​

Answers

answer: 7i
explanation: √-1 is i because a negative square root is imaginary. you can take out the negative from the inside of the square root and replace it with i on the outside. that leaves you with √49, which is 7, and that gives you 7i

Determine the function rule for the following input/output table.
inputs
2
3
4
5
6
outputs
21
31
41
51
61

Answers

Answer:

Every time the input goes up by 1 the output increases by 10.

Step-by-step explanation:

What is a 217 for the sequence -10,-7, -4,-1, ...

Answers

Answer:

a(217)=638

Step-by-step explanation:

a(n) = a +(n-1)d

a=-1

d=-7+10=-4+7=3

a(n) = -10 +(n-1)3

a(217) = -10 +(217-1)3

         = -10+648

         =638

hope this helps

I need help ASAP pic below

Answers

Answer:

Step-by-step explanation:

2) ∠A + ∠B = 146       {Exterior angle theorem}

5y + 3 + 4y + 8 = 146

5y + 4y + 3 + 8 = 146           {combine like terms}

         9y + 11 = 146

               9y = 146 -11

               9y = 135

                 y = 135/9

y = 15

3) m∠A = 5y + 3

              = 5*15 + 3

              = 75 + 3

A = 78

4) m∠B = 4y + 8

            = 4*15 + 8

            = 60 + 8

      m∠B = 68

5) m∠ACB + m∠A + m∠B = 180   {Angle sum property of triangle}

 m∠ACB  + 78 + 68 = 180

           m∠ACB + 146 = 180

                       m∠ACB = 180 - 146

                      m∠ACB = 34

Please show steps on how you simplified it

Answers

Answer:

4(3^2)

3^2=9

4(9)= 36

Answer:

4(3•3)

4(9)

36

Step-by-step explanation:

3 to the second power is equal to 3•3, which is equal to 9

Then you do 4 times 9, equals to 36

A student records the sexes and breeds of a dog in animal shelter. Which kind of data is the student recording

Answers

Answer:

sexes and breeds duh

Step-by-step explanation:

Answer:

data of the dogs

Step-by-step explanation:

Pamela is 5 years younger than Jiri. The sum of their ages is 55. What is Jiro's age?

Answers

Answer:

ummm i firgit

Step-by-step explanation:

I forgot bc well I am dum

Answer:

The answer is 30

Step-by-step explanation:

j+j-5=55

2j=60

=30

What are the zeros of the function defined by 2x^2 - 9x + 4?
O A. -1/2, -4
O B. -1/2, 4
OC. 1/2, -4
O D. 1/2, 4

Answers

The answe is c I think

What is the slop of a line that passes through (2,10) and (1,6)

Answers

Answer:

4

Step-by-step explanation:

Slope is x2-y2/ x1-y1

So, its 6-10/1-2

or, -4/-1

Or 4.

Hope this helps you!

#Team Rainbows.

Answer:

4.

Step-by-step explanation:

The slope = (difference in y coordinates) / (corresponding difference in the x coordinates)

= (10-6)/ (2-1)

= 4 / 1

= 4.

6a-4a(3-4)=

Please help me

Answers

Answer:

Step-by-step explanation:

10a

Armoni took a quiz. On her quiz, she got a 95%. If there were 20 questions on the quiz, how many did Armoni get correct?

Answers

Answer:

19 questions right

Step-by-step explanation:

95% > .95

.95 * 20 = 19

Armoni got 19 questions correct

hope it helps!

Me and my daughter are having a disagreement on this question, I would appreciate the help.

Answers

Answer:

(4t - 8/5) - (3 - 4/3t) = 16/3t - 23/5

5(2t + 1) + (-7t + 28)= 3t+33

(-9/2t +3) + (7/4t + 33) = -11/4c+56

3 (3t-4) - (2t + 10)= 7t -22

Sooo Sorry that it took soooo long! Hope this helps!!!

Happy holidays!!

Covert the equations from standard form to slope intercept form y=-3 and x=-6

Answers

Answer:

y = -3x + 0

and

y = -6x + 0

Step-by-step explanation:

I think this is correct we're currently working on slope in my class.

What is 3(2x-6)-11=4(x-3)+6

Answers

Answer:

[tex]x=11.5[/tex]

Step-by-step explanation:

Answer:

the answer is x=23/2 I think you can simplify that

20%= ?/50. What is the question mark?
7/4
7/1
10/4
3/2

Answers

Answer:

10/4

Step-by-step explanation:

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