Mathematics Middle School

If f(x) = -3x - 2
find f(-7)

Answers

Answer 1

Answer:

19

Step-by-step explanation:

this question means you have to place the value of -7 were there's x in the function.

f(-7)=-3(-7)-2

=21-2

=19

I hope this helps

Answer 2
it’s 19! have a good day!! xoxo

Related Questions

write an equation that equals 6 PLS HELP IM STRUGHLING ITS 2 AM​

Answers

Answer:

4+2

Step-by-step explanation:

√ 36 ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Please help with these two problems and give an accurate explanation. Thank you!

Answers

The domain is all of the x-values a function can have. The range is all of the y-values a function can have.

#50.

Domain: [-5, 10]

---The function starts at the x-value -5 and stops at the x-value 10.

Range: [-3, 5]

---The smallest y-value is -3 and the largest y-value is 5.

#51.

Domain: [-2, infinity)

---The function starts at the x-value -2 and has an arrow to indicate that it goes on forever.

Range: [0, infinity)

---The smallest y-value is 0 and an arrow indicates that the functions goes up and on forever.

Hope this helps!

I don’t know sry ksjdnjd huh

Please help me asap! I will give brainly!

Answers

Answer:

Figure 4 : 9 by 4 rectangle

17 red squares is figure 8

51 yellow squares

The pattern is +2 for the length, and the width stays the same. Hope this helped. :)

Answer:

17 rojo

51 amarillo

en el dibujo son 11 rojos y 33 amarillo

Step-by-step eplanation:

Harrison saved $48.97 from his first paycheck and $67.09 from his second paycheck. How much did he save from the paychecks?

Answers

Answer:

$116.06

Step-by-step explanation:

48.97 + 67.09 = 116.06

Answer:

$116,06

Step-by-step explanation:

48,97 + 67,09

HELP MEEEEEEE PLSSSS

Answers

A,C,D is the answer
Should be A,C,D.
Hope I helped

Step by step plz on how to do this

Answers

Answer:

x=3

Step-by-step explanation:

Step 1: you have to replace y with x-6 to make it all one equation (as seen in the picture below)  

Step 2: write it all together so: x-6= -2x+3

Step 3: add 2x on both sides to cancel out the negative so: x+ 2x and -2x+2x

Step 4: add 6 on both sides to cancel out the negative so: -6+ 6 and 3+6

Step 5: divide 3 by 3x and 9 to get x

X = 3 had to put this for points

Daniela has money automatically deposited into a savings account each week. After 3 weeks, she has $18. After 5 weeks, she has $30. The unit rate measured in dollars per week. What is the constant of proportionality?

A. 1/6
B. 3
C. 6
D. 12

Answers

Answer:

c) 6

Step-by-step explanation:

18 divided by 3 is 6

30 divided by 5 is 6

Answer:

C: 6

Step-by-step explanation:

6th grade Geometry, please help it's due soon!

Answers

Answer:

1. ABO, 2. OCD

Step-by-step explanation:

Since they have the same degrees of angles.

EX: <OA, <BO, <CO, <DO.

(IF I AM NOT RIGHT OR I AM LOSING THE DETAIL WANTED, PLEASE LIST OUT IN THE COMMENT BELOW THE ANSWER AND I WILL CHANGE IT.)

: ) Just to make it look bolder.

OCD and OAB
since they use the same angles they are congruent

:))

What is the volume of the following rectangular prism?


I’m doing this on khan academy and I keep failing the test. Now I’m scared of getting questions wrong

Answers

Answer:

8 1/8

Step-by-step explanation:

V = 16 1/4 • 1/2

V = 8 1/8

Answer:

8 1/8 units³

Step-by-step explanation:

V = lwh

Since the area is already given to you, just multiply that by the other number.

[tex]V=(16\frac{1}{4})(\frac{1}{2})\\\\V=\frac{65}{8}=8\frac{1}{8}[/tex]

Kindly Please Help....
You will need to make make a frequency distribution table and represent it in a bar graph creatively. (5 different forests in India)

Answers

Answer:

1st- thorn forest - forest which have many thorns it is in rajasthan

2nd- evergreen forest - a forest whose trees are green in any season

3rd- Amazon forest - in Amazon forests there are many venomous/ poisonous amphibians and stuff like anacondas and wild animals.

Step-by-step explanation:

so sorry this is all i could find

For the equation, determine whether the equation is true for all, some, or no values of x.

Explain how you know.

−3x=x×−3

Answers

Answer:

nothing can be further done with this topic. please check the expression entered or submit a picture for futher understanding

Step-by-step explanation:

It would be true for all values of x. If you multiply out the right hand side, you would get -3x = -3x. Dividing both sides by -3 gives you x=x, which is always true.

Hope this helps!

help help help help help help help help

Answers

Answer:

Option A is correct

Step-by-step explanation:

6 feet 2 inches = 74 inches

74 inches = [tex]6 \frac{1}{6} [/tex]feet.

Hope it is helpful....
A is the correct answer

please hlep me its ixl

Answers

Answer:

D

Step-by-step explanation:

D is the answer I did the math.

Hope this helps!

Answer:

d

Step-by-step explanation:

Write two equivalent ratios using four different types of music in the data table showing. How do you know the ratios are equivalent? ​
rock-12
classic rock-4
county-18
jazz-2
heavy metal-6​

Answers

6/12, 2/4, 2/18, 2/12
These are equivalent because in a way they equal each other with division
6/12, 2/4, 2/18, 2/12

100 POINTS
My neighborhood is full of one-way streets. To drive from my house to the grocery store, I have to go 1 block south, then 1 block east, then 5 blocks north, then 2 blocks east. Each block is 1/16 of a mile. How much shorter would my trip be if I could fly like a bird (that is, travel in a straight line)?
I FOUND THE distance for non bird which is 9/16. I wanna apply the pythagoreum theorum and draw a straight line to make it a triangle so I can do so but don't know where to place it

Answers

Answer:

1/4

Step-by-step explanation:

Let's suppose that your house is located at (0,0)

1 block south from here puts you at (0, -1/16)

1 block east from here now puts you at (1/16, -1/16)

5 blocks north from here puts you at (1/16, 4/16)

2 blocks east from here puts you at (3/16, 4/16)

You have traveled (1/16) ( 1 + 1 + 5 + 2) = 9 / 16 of a mile

The "straightline" distance between (0, 0) and (3/16, 4/16) =

sqrt [ (3/16^2 + (4/16)^2 ] = sqrt [ 25 / 256] = 5/16 of a mile

Your trip would be { 9/16 - 5/16 } equals 4/16 and simplifies equals 1/4 of a mile.

Goodluck and I hope this helped!

SOLVE OR SIMPLIFY THIS!! 4(2x+7)=12-2(10-2x)

Answers

Answer:

-3

Step-by-step explanation:

8x+28=12-20-4x

8x+4x=-8-28

12x=-36

x=-3

PLS MARK AS BRAINLIEST

first, distribute the 4 and -2.
8x+28= 12-20+4x

simplify
8x+28=4x-8

subtract 4 and subtract 28 to get them on opposite sides
4x= -36

divide by 4
X= -9

Yep please ASAP! I appreciate it!!!!!

Answers

Answer: just read

Step-by-step explanation:

So first you plot the points, then calculate how many units it takes from the point that is Sean’s house to his School. Show your work on that by drawing out your skip counting. Then you plot the rest of the points and fpro this calculation: the distance from Sean’s house to his school+ from his school to the grocery store. Then you calculate the distance (in units! ! ! Which means one box is one unit) : distance from Sean’s house to the school+ from school to the commmunity center. Then two calculations you made above you compare. So whichever one is greater is your answer for part b.

Read it now and send me ur pic of the video and send pic when I see you in a while and I’ll let you know what I’m gonna say

PLEASE HELP SOON AND TRY TO EXPLAIN.
Prove that if a, b, c, d are non zero real numbers, not all equal, and if a+1/b=b+1/c=c+1/d=d+1/a then |abcd|=1. Thx!

Answers

Answer:

because any number over 0 is 0 and if   |abcd|=1 that it is not possible to be 0

Step-by-step explanation:

It’s possible it could be zero but it could also be one

A net of a three-dimensional figure is shown. What is the surface area of the three-dimensional figure?

Answers

Answer:

184 ft^2

Step-by-step explanation:

in the picture

Answer:
184^2

Detailed explanation:

Help!!
I need help with my math!!

Answers

Answer:

5

Step-by-step explanation:

12 - 7 = 5

S O L U T I O N :

Using Pythagoras Theorem

Hyp² = Adjacent² + Opp²

13² = d² = 12²

d² = 13² - 12²

d² = 169 - 144

d² = 25

d = √25

d = 5

The correct answer is 5, OPTION C IS CORRECT

A coordinate grid with 4 lines. Line A passes through (0, 5) and (4, 3.75). Line B passes through (3.75, 0) and (0, negative 5). Line C passes through (0, negative 5) and (negative 3.75, 0). Line D passes through (negative 3.75, 0) and (0, 5).
Which line represents the linear equation
–3y = 15 – 4x?

The equation –3y = 15 – 4x rewritten in slope-intercept form is

Answers

Answer:

C

Step-by-step explanation:

im pretty sure

Answer:

9

Step-by-step explanation:

Using the GCF and distributive property, which expressions is equivalent (equal) to 12y + 16

A 2(6y + 80)

B 4(3y + 4)

C 28y

D 16 + 12y

Answers

Answer:

4(3y+4)

Step-by-step explanation:

12y + 16

4*3*y +4*4

Factor out 4

4(3y+4)

Answer:

2(6y+80) = 12y+160

4(3y+4) = 12y+16

28y = 28y

16+12y = 12y+16 (did not use distributive property)

So,  B is correct.

Let me know if this helps!

3^(2)+4(2)
4-9(5+1)+3
5^(2)+3^(2)-8
(3+2)^(2)+4(2+3)
8^(2)-9(2)+3
2(5)^(2)
4^(2)+6(2+8)
4+5(3)+2(7)-6
8+3(6)-3^(2)
2+6-5+4(6)

Answers

um i can help but are they all separate or
Tip: If you put too much things at once not many will answer.

Please help ASAP!!!!! I would really appreciate it

Answers

Answer:

(-2,-5)

Step-by-step explanation:

Because his house is in the same quadrant as the city park (quadrant 3) the answer's coordinates will have x=a negative number and y= a negative number. So, the answer will be (-2,-5).

Hope this helps!

For the equation, determine whether the equation is true for all, some, or no values of x.

Explain how you know.

Answers

Answer:

You can check if an equation is true for all some or no values of x by simply to  try and solve the equation if you get something like x = x, then the equation  is true for all, if you get a specific answer like x=3, then it is true to some values, in simple terms. Try and solve the equation there is no other way to check unless you solve, I don't know if there is another way but this is just my intution.  

Step-by-step explanation:

Answer:

111

Step-by-step explanation:

111

PLSSS HELPPP! I will give brainliest and 11 points!!

Answers

Answer:

B:

4 units right and six units up

B is the right answer

sort the following numbers from least to greatest.
18.5635, 18 13/16, 18.3125

Answers

Answer:

18.3125

18.5635

18 13/16

Step-by-step explanation:

18.3125

18.5635

18 13/16

An adult ticket is twice the cost of a child's ticket. Angela paid $ 28 for two adult tickets and three children's tickets. Which of the
following equations could be used to find the price of a child's ticket?
(A) x + 2x = 28
(B) 3x + 2(2x) = 28
(C)3(2x) + 2x = 28
(D) 3x + 2x = 28

Answers

B = 3 x + 2 ( 2x ) = 28

The following equations could be used to find the price of a child's ticket,  3x + 2(2x) = 28, the correct option is B.

What is an Equation?

An equation is a mathematical statement formed when two expressions are equated using an equal sign.

The equations are useful in determination of unknown parameters.

The equations are of various types, such as Trigonometric equations, quadratic equations.

The system of equations are used to solve complex problems.

Let the cost of child ticket is $x

An adult ticket is twice the cost of a child's ticket.

Let the cost of adult ticket is $2x

The total amount Angela paid is $28 for two adult tickets and three children's tickets.

The equation that will be formed is

4x + 3x = 28

It can also be written as 3x + 2(2x) = 28.

To know more about Equation

https://brainly.com/question/10413253

#SPJ2

So say selling a backpack thats used-like new and the original price is $54.00 how much should I set the price at??

Answers

it most be eleven hundred

If it’s used and you’re selling it then probably like 25-35 dollars

Please whoever knows they can solve this, help!

I have attached the question down below. Please explain in detail and diagrams if the question permits you to do so. Thank you. I will also be marking the brainiest.

Answers

I can’t see the question I think you forgot to upload it
explanation:

Answer:Can't see the question

Step-by-step explanation:

Other Questions
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Most likely, you could describe the room very generally. You could name the color of the walls, the floors, the decorations. But the image you describe will never be as specific or detailed as if you were looking at the actual room. Memory tends to save a blurry image of what we have seen rather than specific details. So when a witness tries to identify someone, her brain may recall that the person was tall, but not be able to say how tall when faced with several tall people. There are lots of different kinds of "tall."Second, memory uses general knowledge to fill in gaps. Our brains reconstruct events and scenes when we remember something. To do this, our brains use other memories and other stories when there are gaps. For example, one day at a library you go to quite frequently, you witness an argument between a library patron and one of the librarians. Later, when telling a friend about the event, your brain may remember a familiar librarian behind the desk rather than the actual participant simply because it is recreating a familiar scene. In effect, your brain is combining memories to help you tell the story.Third, your memory changes over time. It also changes the more you retell the story. Documented cases have shown eyewitnesses adding detail to testimony that could not have been known at the time of the event. Research has also shown that the more a witness's account is told, the less accurate it is. You may have noticed this yourself. The next time you are retelling a story, notice what you add, or what your brain wants to add, to the account. You may also notice that you drop certain details from previous tellings of the story.With individual memories all jumbled up with each other, it is hard to believe we ever know anything to be true. Did you really break your mother's favorite vase when you were three? 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