Somebody please help me

Answer:

a) 23x

b) 8n

c) -6y

d) -17w

Explanation:

When combining like terms, if there is an addition operator, add both coefficients and carry the variable over. If there is a subtraction operator, subtract both coefficients and carry the variable over. Remember, you can only combine like terms if the variable, and exponent are the same. The addition and subtraction symbols are examples of an operator used in arithmetic. For example, 9x + 14x could be like adding 9 objects and 14 objects together, you have 23 objects total because 9 + 14 = 23. When you add negative numbers, it is like subtracting. When you subtract negative numbers, it is like adding. Negative just means opposite.

a) 9x + 14x = (9+14)x = (23)x = 23x

b) -2n - 10n = (-2+10)n = (8)n = 8n

c) 8y - 14y = (8-14)y = (-6)y = -6y

d) -6w - 11w = (-6-11)w = (-17)w = -17w

Answer:

a: 23x

b: 8n

c: -6y

d: -17w

Step-by-step explanation:

you just add/subtract the numbers then add the variable at the end

Answer:

i am very bad at o math i am only at 8 sorry

Step-by-step explanation:

if you could give me a brainliest.

Answer:

y=x-3

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

I am pretty sure but get another answer just to be sure.

Answer: 936 cm²

Step-by-step explanation:

A = (18 × 24 × 0.5) × 2 + (18 + 30 +24) × 7 = 936 (cm²)

Answer:

The answer is 936

Step-by-step explanation:

this is full marks in mathswatch

Answer:

An expression is a number, a variable, or a combination of numbers and variables and operation symbols. An equation is made up of two expressions connected by an equal sign.

Step-by-step explanation:

Answer:

m∠1=131

m∠2=49

Step-by-step explanation:

Remember that a line is 180 degrees. To find the measure of angle 2 you will take 180-131= 49.

The measure of angle 1 matches to 131 degrees since it is an alternate interior angle.

Answer:

The slope of the line that passes through (-7, 1.3) and (-7, 14.2) is undefined.

Step-by-step explanation:

Given the points

Finding the slope between  (-7, 1.3) and (-7, 14.2):

It is clear that the value of x-coordinate remains the same, no matter what is the value of y is.

In other words, the given line is vertical.

i.e. [x₂ - x₁] = -7 - (-7) = -7+7 = 0

We know that the slope of a vertical line is undefined.

i.e.

Using the slope formula

Slope =  [14.2 - 1.3] / [0]

Hence, the slope of the line that passes through (-7, 1.3) and (-7, 14.2) is undefined.

Step-by-step explanation:

Area of parallelogram

= Vertical height * Base

= (8m)(6m) = 48m².

The area is 48 square meters.

Answer:

48 square meters

Step-by-step explanation:

First we know there are two triangles the same size and because, the formula is A = 1/2b*h. Therefore, we only have to do the math for one triangle to make up for both triangles.

2*8=16.

Then because, 6 is for both the triangle and the square it would be 4*8=32

32+16=48

48

Therefore, your answer would be 48 square meters.

Answer:

b3 +6 (plug in the given value for b and solve)

(2)3 +6 (multiply)

6 + 6 (add)

12 (your answer)

Step-by-step explanation:

I hope this helped :)

Answer:

y= -1/2x +0 because it's going down by 1/2 if you do rise over run, and the y intercept is 0

Yes you are correct because the relationship in the table is y = x - 1

Answer:

It's A

Step-by-step explanation:

Answer:

∠ AFE = 80°

Step-by-step explanation:

Since BD is a straight line , then

∠ AFB + ∠ AFE + ∠ EFD = 180°, that is

50° + ∠ AFE + 50° = 180°

100° + ∠ AFE = 180° ( subtract 100° from both sides )

∠ AFE = 80°

Answer:

x=6, y=128

Step-by-step explanation:

set 5x+16 = 7x+4

-2x=-12

x=6

plug x into equation= 46

180-46=134

y+6=134

y=128

Answer:

25%

400%

Step-by-step explanation:

37=148x

x=0.25

25%

148=37x

x=4

Answer:

first: 37×100=3700

3700/148=25 percent

second: 148×100=14800

14800/37 =400 percent.

hope I helped u. pls mark me❤️

Answer:(2x^2+1) (x^2+5)

Step-by-step explanation:

Just answered it hsbsskksks

Answer:

200 is the correct response to this question

Step-by-step explanation:

lol

Answer:

X= 20 degrees

Step-by-step explanation:

Because all the sides are the same length, we know this triangle is an equilateral triangle. In an equilateral triangle, all the angle measures are the same as well, and the sum of all the angles in a triangle is 180 degrees. So we have the equation:

(3x)3= 180

9x= 180

X =20

Answer:

[tex] {(a + b + c)}^{2} = {(5 + 4 + 3)}^{2} \\ = {12}^{2} \\ = \boxed{144}[/tex]

Answer:

$36.25

Step-by-step explanation:

21.75/3

7.25*5

36.25

Answer:

36.25

Step-by-step explanation:

Answer: 3

PLOT AT THE POINT (-1, 3)

Step-by-step explanation:

Just plug in the X coordinate in the equation to get the answers.

Example in problem 2

Plug in X to find Y

Y= -1^2 + 2

Y = 3

Therefore, graph it at the point (-1,3)

Hope this was helpful !!

Answer:

c=10

36+64=c square

100=c square

10=c

you can also use the pythagorean triple 6,8,10 to figure it out faster.

Step-by-step explanation:

thank me later for the solution hope it works

Answer:

20%

20=4

32=6.4

54=10.8

88=17.6

120=24

25%

20=5

32=8

54=13.5

88=22

120=30

30%

20=6

32=9.6

54=16.2

88=26.4

120=36

75%

20=15

32=24

54=40.5

88=66

120=90

120%

20=24

32=38.4

54=64.8

88=105.6

120=144

Step-by-step explanation:

Go to a percentage calculator to check if this isn't enough.