In this expression Marianna claims that 2X And negative X are not like terms because -x doesn't have a coefficient.Is she correct?Explain your reasoning

Answers

Answer 1

Answer:

She is incorrect

Step-by-step explanation:

Given:

2x and -x

Required

Like term or not?

Like terms are determined by the term itself and not by their coefficients;

Take for instance;

[tex]x^2[/tex] and [tex]2x[/tex] are not like terms because a term has square while the other doesn't

Another instance;

[tex]-3x[/tex] and [tex]2x[/tex] are like terms because they both have the presence of just 1 x

In Marianna's case;

2x and -x are like terms;

Reason being that: -x can be rewritten as -1x; giving it a coefficient of -1


Related Questions

can yall help me please.... thanks :)

Answers

Jeez lol so harsh but still

Television sizes are described by the length of their diagonal measure. What would be the listed size of the TV shown? (to the nearest whole inch)
1,424
32
38
20

Answers

Answer:

38 inches

Step-by-step explanation:

since we are finding the diagonal we are going to use the equation a^2+b^2=c^2

so if we do substitution we would have 32^2+20^2=C^2

32^2= 1024

20^2= 400

so,

1024 + 400 = C^2

1424 = C^2

to get rid of the C^2 we have to take the square root of it. But whatever we do on one side of the equation we have to do on the other side so,

C = sqrt(1424)

C = 37.73

C = 38 inches

Tim's bean sprout grew 3/ inches. Teegan's bean sprout grew 2 3/4 inches. How many more inches did Tim's bean sprout grow than Teegan's? First, estimate the difference mentally and explain your reasoning. Then find the actual difference.

Answers

Answer:

groottttt

Step-by-step explanation:

groottt

Hi. Please i need help with this question.
Workings please.

Find the operation used in solving the question.

Thanks <3 ​

Answers

Answer:  multiply left and multiply right, then subtract them

Step-by-step explanation:

Sample Left: 6 x 3 - 4 x 3 = x

                               18 - 12 = x

                                    6 = x

             

Sample: Middle    7 x 4 - 9 x 2 = x

                                 28 - 18 = x

                                         10 = x

Sample: Right       7 x 3 -  0 x 7 = x

                                       21 - 0 = x      

                                             21 = x

                                                                                                                                         

                             

                     

                                                             

A bag contains 39 colored marbles. There are 6 blue marbles, 14 red marbles, 8 yellow marbles, and 11 clear marbles. What is the ratio of blue to red marbles?

Answers

Answer:

3 to 7

Step-by-step explanation:

blue to red

6 to 14

Divide each side by 2

6/2 to 14/2

3 to 7

Answer:

The ratio would be 6:10 or 6/10 ( 3/5) or 0.6.  

Step-by-step explanation:

Why?  A ratio is comparing two numbers with a fraction, colon or decimal or percent.

Well there are 6 blue marbles out of the 35 colored marbles. And there are 10 clear marbles.

The question is asking for a blue/clear. It is easy to get confused and put clear/blue. So that is why 6:10 is the ratio.

3x-2 is less than or equal to -20

Answers

Answer:

x [tex]\leq[/tex] -6

Step-by-step explanation:

3x - 2 [tex]\leq[/tex] -20

Solve for x:

3x [tex]\leq[/tex] -18

x [tex]\leq[/tex] -6

The answer is -6 which means it is less than

how do you solve 6(6+8)

Answers

Answer:

84

Step-by-step explanation:

Simplify the following:

6 (6 + 8)

6 + 8 = 14:

6×14

6×14 = 84:

Answer: 84

Answer:

Your correct answer is 84.

Step-by-step explanation:

6 (6+8) = (6)(14) = 84

Could someone help me

Answers

Answer:

Hey there!

The second box weighs (3/4)(3.5), which is 2 and 5/8. Option B is correct.

Let me know if this helps :)

1-3 Function Operations and Composition
Let f(x) = 4x - 7 and g(x) = 5 + 9x. What are f + g and f-g? What are their domains?
о А.
(f + g)(x) = 13x – 2; (f - 9)(x) = 5x + 12; domain of each is all real numbers except - 5
B. (f+g)(x) = 13x – 2; (1-9)(x) = -5x - 12; domain of each is all real numbers.
О С.
(f + g)(x) = 9x + 2: (8 - 9)(x) = 5x + 12; domain of f + g is all real numbers except
domain off-g is all real numbers except
O D. (+g)(x) = 9x + 2; (1-9)(x) = -5x - 12 domain off + g is all real numbers except - 5 domain of f- g is all real numbers except
1

Answers

Your answer would be C

For office supplies you buy s boxes of staples, r reams of paper, and p boxes of ink pens. Staples cost $1.43 per box, paper costs $3.43 per ream, and ink pens cost $2.36 per box. Write a formula that expresses the cost C, in dollars, of all the office supplies as a function of s, r, and p.

Answers

Answer:

C= 1.37(s)+3.36(r)+2.46(p)

Step-by-step explanation:

Amir is laying stone for his new patio. The diagram of the patio is shown. How many
square feet of stone does Amir need to cover on his patio?

Answers

Answer: 108ft^2

Step-by-step explanation:

First, at the top we have two triangle rectangles.

The area of a triangle rectangle is equal to the product of their cathetus divided by two.

We know that one common cathetus for both triangles is 6ft.

And both share the bottom line that is 14ft long, so half of that corresponds to each triangle.

14ft/2 = 7ft

Then each triangle has a cathetus of 6ft and one of 7ft.

Then the area of each triangle rectangle at the top is:

6ft*7ft/2 = 21ft^2

And we have two of them, so the area for now is:

A1 = 21ft^2 + 21ft^2 = 42ft^2.

Now let's look at the bottom part, we can divide this into two triangle rectangles and one rectangle.

First, bottom side is 8ft, then the difference between this side and the 14ft one is:

14ft - 8ft = 6ft

(We calculate this because we are making a rectangle, then the bottom side length must be equal than the top one).

Then we have a surpass of 6ft, which we will divide into both triangle rectangles (3ft for each, this is one of the cathetus).

And we can see that the cathetus shown of this triangle rectangle is 6ft (this is also the other side of our rectangle)

Then we have two triangles with cathetus 6ft and 3 ft, the area is:

A = 6ft*3ft/2 = 9ft^2

And we have two of them, then A2 = 18ft^2.

And the rectangle is 8ft by 6ft, the area is:

A3 = 8ft*6ft = 48ft^2

Then if we add all the areas that we found, we have:

A1 + A2 + A3 = 42ft^2 + 18ft^2 + 48ft^2 = 108ft^2

Maria brought 17 packs of cola to a party, and each pack had 6 cans. Kira brought 9 cans of juice. How many cans did they bring in all?

Answers

Answer:

In total they brought 111 cans

Step-by-step explanation:

17*6=102

102+9=111

Maria:

No. of cans in a pack = 6

No.of cans in 17 pack = 6 * 17 = 102 cans

No. of cans bought by Heather = 9 cans

Total cans = 102 + 9 = 111 cans

Mike spent half of his money on going to the movies. He washed the family car and earned 7 dollars. What is his weekly allowance is he ended with 18 dollars

Answers

Answer:

I think his weekly allowance would be $22.

Step-by-step explanation:

Because 18-7=11x2=22.

if a circle's circumference is 15 inches what is its radious? leave the symbol pi in your answer ​

Answers

Answer:

the radius is 2.38

Step-by-step explanation:

use the formula c=2pi r

Answer:

15/2π

Step-by-step explanation:

If the circumference is 15 inches, we can create an equation using the following formula:

Circumference of circle = 2 x π x radius

which is C = 2πr

Now, substituting our value of the circumference (15) into the equation, we get:

15 = 2πr

In order to find r, the radius, we must divide both sides by 2π, which makes r the subject. This cancels out the 2π on the right side, leaving us with:

15/2π = r

So the radius is 15/2π.

x = 0.6x + 384 what is x

Answers

Answer:

X=960

Step-by-step explanation:

x=0.6X +384

x-0.6X =384

0.4x=384

divide through by 0.4

X=960

A statue at the park needs to be moved. Workers need to move it 7 yards north and 20
yards west. Which of the following represents the job they must do?
a) ( − 20, + 7)
b) ( + 7, + 20)
c) ( + 20, + 7)
d) ( − 7, − 20)

Answers

Answer:

the answer is a) (-20, +7)

Step-by-step explanation:

This because by moving the statue north, they are moving it up, and bye moving west they move it to the left. You can tell what is positive and negative by visualizing a graph. Going north is like moving up the y-axis, so you add 7 to the y coordinates. And moving it west would be like moving the statue towards the negative side of the x-axis, thus subtracting 20.  

I need y’all to do 11 plz it’s redoing work so don’t mind all the extra work it’s 6th grade math! I WILL MARK THE BRAINLIEST!!!
15 points!

Answers

Answer:

62.5%

Step-by-step explanation:

First, divide 5/8:

5/8 =0.625

Then, to make it a percentage, multiply it by 100:

0.625 x 100 = 62.5

Answer: 62.5 %

help please thank you.

Answers

Answer:

44

Step-by-step explanation:

Plug in the values for x, y, and z.

this makes the equation 5(8)+12/3

multiply 5x8 and get 40

divide 12/3 and get 4

add 40+4 to get 44

Answer:

The answer is 44

Step-by-step explanation:

[tex]5y + \frac{x}{z} [/tex]

From the question

x = 12 , y = 8 and z = 3

Substitute the values into the above expression

That's

[tex]5(8) + \frac{12}{3} [/tex]

[tex] \frac{12}{3} = 4[/tex]

So we have

[tex]5(8) + 4 \\ 40 + 4[/tex]

We have the final answer as

44

Hope this helps you

a+ ab + b for a = 11, b = 8

Answers

Answer:

107

Step-by-step explanation:

Plug in 11 for a, and 8 for b.

a + ab + b

(11) + (11 * 8) + (8)

Remember to follow PEMDAS. First multiply, then combine terms:

11 + (11 * 8) + 8

11 + (88) + 8

99 + 8

107

107 is your answer.

~

-13 is classified as?Select all that apply * Natural Number Whole Number Integer Rational Numbe

Answers

Answer:

Integer and Rational number.

So, I'm giving 23 points! I need the area, just the number.

Answers

Answer:

21

Step-by-step explanation:

just the answer?

no explanation?

ok,

Answer: 21

PLEASE HELP URGENT!!!!!! WILL GIVE BRAINLIEST!!!! MATH!!!!

Answers

What’s your question?

-2x - 2y -2z + 5z -2y - 4z

Answers

Answer:

-2x-4y-z

-(2x+4y+z)

Step-by-step explanation:

hope it is helpful for you

if it is please follow me

Step-by-step explanation:

[tex] - 2x - 2y - 2z + 5z - 2y - 4z[/tex]

Collect like terms

[tex]2x - 4y - 2z + 5z - 4z[/tex]

[tex] - 2x - 4y - z[/tex]

The answer is - 2x-4y-z

Please mark as brainliest

Aiden is a spice trader. He charges $5 for 1 kilogram of cumin seeds, which is the smallest amount he sells. The largest amount of cumin seeds Aiden can sell is 1000 kilograms, which cost $2000 . P(w) models the price (in dollars) of  'w' kilograms of cumin seeds in Aiden's shop. Which number type is more appropriate for the domain of p ?


Integers/Real Numbers

A. 1≤w≤1000

B. 5≤w≤1000

C. 1≤w≤2000

Answers

Answer:

[tex]1 \leq\ w\leq\ 1000[/tex]

Step-by-step explanation:

Given

Charges: $5 for 1 kg

Charges: $2000 for 1000 kg

w represents kilograms

P(w) represents Price

Required

What's the domain of P

Start by representing P as a function of w

When

[tex]w = 1\ kg[/tex]

[tex]P(1) = \$5[/tex]

[tex]w = 1000\ kg[/tex]

[tex]P(1000) = \$2000[/tex]

The domain of P are the values of w and is represented as follows;

[tex]1 \leq\ w\leq\ 1000[/tex]

Hence;

Option A answers the question

The number type most appropriate for the domain of p is real numbers and the domain of p is A. 1 ≤ w ≤ 1000

Since Aiden charges $ 5 for 1 kilogram of cumin seeds, which is the smallest amount he sells. and the largest amount of cumin seeds Aiden can sell is 1000 kilograms, which cost $2000.

Since P(w) models the price in dollars of w kilograms of cumin seeds in Aiden's shop.

We see that P(1) = $ 5 and P(1000) = $ 2000.

So, $ 5 ≤ P(w) ≤ $ 2000 which is the range and the domain is

1 ≤ w ≤ 1000

And since w is a continuous variable, the number type most appropriate for the domain of p is real numbers and the domain of p is A. 1 ≤ w ≤ 1000

So, the number type most appropriate for the domain of p is real numbers and the domain of p is A. 1 ≤ w ≤ 1000

Learn more about domain of a function here:

https://brainly.com/question/16485117

The total cost of hiring a mechanic to fix your car is $154 for parts plus an additional $45 per hour for labor. How much would it cost if the mechanic worked for 3.5 hours to fix your car?

Answers

Answer:

311.5

Step-by-step explanation:

154 + 45(3) =289

45 / 2 = 22.5

289 + 22.5 = 311.5

Isabella puts 100 marbles in a jar and shook the jar. There are 4 colors of marbles. There are 25 of each color. What is the probability that Isabella will pick a marble out of the jar that is her favorite color?

Answers

Answer:

Step-by-step explanation:

It would be a 25% chance that she would get her favorite color

Answer:

Flipping a coin

Step-by-step explanation:

what is the domain and range ​

Answers

Answer:

Domain: - 4

Range: 0

Step-by-step explanation:

The Domain is the first coordinate which is x.

The Range is the second coordinate which is y.

Hope This Helps :)

PLEASE HELP!

I don’t know how to do this:

Graph f(x) and f^-1(x) on the same coordinate plane below.

Answers

Answer:

is there a picture that goes with this?

Step-by-step explanation:

If you could help me out, that would be great. I will give brainliest

Answers

Answer:

[tex]y-3=-2(x+2)[/tex]

Step-by-step explanation:

Point-slope form is [tex]y-y_1=m(x-x_1)[/tex]

m= slope, [tex]y_1=3, x_1=-2[/tex]

slope= [tex]\frac{rise}{run}=\frac{-2}{1} =-2[/tex]

[tex]y-3=-2(x-(-2))[/tex]

[tex]y-3=-2(x+2)[/tex]

What is the sum of 4.5 + 3.2 + (-7.5)

Answers

Answer:

0.2

Step-by-step explanation:

4.5 + 3.2 = 7.7

7.7 - 7.5 = 0.2

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