What equation is ALWAYS TRUE?

What Equation Is ALWAYS TRUE?

Answers

Answer 1

Answer:

2

Step-by-step explanation:

Answer 2
I think the one u choose was right!.

Related Questions

find the. change in temperature or elevation from -2°c to 13°v​

Answers

Answer:

I'm pretty sure it's -15

Step-by-step explanation:

Joey buys 3 gallons of paint to paint his bedroom. He used 34 of the paint to paint the walls. How much
paint is left?

Answers

Answer:

34 of the paint? is it 3/4 or just 34?

Step-by-step explanation:

Answer:

11.3

Step-by-step explanation:

divide my dude

Jacob watered the flower garden. What is the verb of this simple sentence

Answers

Answer:

Watered

Step-by-step explanation:

Hope this helps

Answer:

watered

Step-by-step explanation:

Solve for n.
m=n/r+t

Answers

Answer:

n = m r - r t

Step-by-step explanation:

Solve for n:

m = n/r + t

Hint: | Reverse the equality in m = n/r + t in order to isolate n to the left hand side.

m = n/r + t is equivalent to n/r + t = m:

n/r + t = m

Hint: | Isolate terms with n to the left hand side.

Subtract t from both sides:

n/r = -t + m

Hint: | Solve for n.

Multiply both sides by r:

Answer: n = m r - r t

K + 1= -27
Last one I need this one right

Answers

Answer:

[tex]k=-28[/tex]

Step-by-step explanation:

[tex]k+1=-27[/tex]

Subtract 1 from both sides:

[tex]k+1-1=-27-1[/tex]

[tex]k=-28[/tex]

The answer would be -28

# Expand (2x - 3)2. If a, b, and c represent

the coefficients of the resulting polynomial in

descending powers of x, what is a+b+c?

Answers

Answer:

a + b + c = 1

Step-by-step explanation:

To expand the bracket, [tex](2x - 3)^{2}[/tex] we will simply be multiplying the bracket by itself.

This will be the same as having [tex](2x - 3) \times (2x - 3)[/tex]

The first step in doing this is to multiply each of the values in the second bracket by the values in the first one.

[tex]2x \times 2x =4x^2[/tex]

[tex]2x\times -3 = -6x[/tex]

[tex]-3 \times 2x = -6x[/tex]

[tex]-3 \times -3 =9[/tex]

Once this is done, the next step is to group the like terms and evaluate the result.

[tex]4x^2 -6x-6x +9[/tex]

[tex]4x^2 -12x +9[/tex]

This is algebraic expression is the result of the expansion of [tex](2x - 3)^{2}[/tex] .

Based on the descending powers of x

a = 4

b = -12

c = 9

These are the coefficients of [tex]x^2[/tex]  and [tex]x[/tex] and also the last figure.

a + b + c = 4 -12 +9 = 1

Talia is packing a moving box. She has a​ square-framed poster with an area of 4 square feet. The​ cube-shaped box has a volume of 13 cubic feet. Will the poster lie flat in the​ box? Explain?

Answers

The volume of a cube = e^3

e = a single edge of the cube.

Area of a square = a^2

a = a single side of the square.

The volume of our cube = 13 ft^3

e = [tex]\sqrt[3]{13}[/tex] = 2.35 ft

The area of our square =  4 ft^2

a = [tex]\sqrt{4}[/tex] = 2 ft

The edge of our cube is greater than the length of our square's side.

The poster will lie flat in the box.

Simplify: 2(3 – 4 – 7).

Answers

Answer:

-16

Step-by-step explanation:

2(3-4-7)

6-8-14

-2-14

-16

Answer:

Step-by-step explanation:

2(3 - 4 - 7) = 2(3 - 11)

                = 2*(-8)

               = -16

find the coordinates of A if M (-1,2) is the midpoint of AB and if B has coordinates of (3,-5)

Answers

Answer:

07

Step-by-step explanation:

The coordinate of A is (-5, 9) if M (-1,2) is the midpoint of AB and if B has coordinates of (3,-5).

What is an ordered double?

It is defined as a representation of coordinates in a two-dimensional coordinate plane. It has a list of two elements in it, such as (x, y).

[tex]\rm Area = |\dfrac{(x_1y_2-y_1x_2)+(x_2y_3-y_2x_3)....+(x_ny_1-y_nx_1)}{2}|[/tex]

It is given that:

The coordinate of the midpoint of AB is M (-1,2)

The coordinate of B is (3, -5)

Let (x, y) be the coordinate of A.

From the mid-point theorem:

(x + 3)/2 = -1

x + 3 = -2

x = -2 - 3

x = -5

(y - 5)/2 = 2

y - 5 = 4

y = 4 + 5

y = 9

The coordinate of A is (-5, 9) and the coordinate of B is (3, -5)

The mid-point of the line segment AB

The coordinate of M is (-1, 2).

Thus, the coordinate of A is (-5, 9) if M (-1,2) is the midpoint of AB and if B has coordinates of (3,-5).

Learn more about the order double here:

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which of the following is equivalent to √52? A.9√6 B.3√9 C.3√6 D.2√27​

Answers

Answer:

Step-by-step explanation:

D

the answer is d hope it helped!

What is 190% of 6.7? Round to the nearest hundredth

Answers

6.7 x 1.9 = 12.73
Therefore 190% of 6.7 is 12.73.

Find the midpoint of the segment with the given endpoints. (9.-9) and (2.-10)​

Answers

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{(5.5 \: , \: - 9.5)}}}}}[/tex]

Step-by-step explanation:

Let the points be A and B

Let A ( 9 , -9 ) be ( x₁ , y₁ ) and B ( 2 , - 10 ) be ( x₂ , y₂ )

Finding the midpoint

[tex] \boxed{ \sf{midpoint = ( \frac{x1 + x2}{2} , \frac{y1 + y2}{2} }}[/tex]

[tex] \longrightarrow{ \sf{midpoint = ( \frac{9 + 2}{2} , \: \frac{ - 9 + ( - 10)}{2}}} )[/tex]

[tex] \longrightarrow{ \sf {midpoint = ( \frac{11}{2} \: , \: \frac{ - 9 - 10}{2}})} [/tex]

[tex] \longrightarrow{ \sf{midpoint = (5.5 \: , \: \frac{ - 19}{2}}} )[/tex]

[tex] \longrightarrow{ \sf{midpoint = (5.5 \: , - 9.5}})[/tex]

Hope I helped!

Best regards! :D

-15 - 8y = -1
algebra homework

Answers

-4y=-7


you subtract fifteen from both sides then simplify by -2

Answer:

y= -7/4

Demical: y= - 1.75

Step-by-step explanation:

Add 15 to both sides

-15 - 8y + 15= -1 + 15

Simplify

-8y = 14

Divide both sides by -8

-8y/-8 = 14/-8

Simplify

y= -7/4

1 Solve q = 64.
A a=4
B a = 8
Ca = 21
D a= 32

Answers

For the picture it’s 225

- | 1 - 5a | = 29
i need help and an explain on how to do it.

Answers

Answer:

Well your using absolute value and everything in absolute value is positive so you get rid of the negative.

Step-by-step explanation:

So you distribute the negative into the absolute value equation . And it leaves you with

|-1+5a|=29 now you can solve

your subtract your -1 from both sides bc you are solving for a

that gives you

5a=30 then you divide 5 divided by 30 is what 6 so that’s your answer

a=6

Please help and Thank you

Answers

Answer:

n+5>11

Step-by-step explanation:

> is greater than

< is less than

> with the line under it is greater than or equal to

<with the line under it is less than or equal to

Convert the number from
scientific notation to standard notation:
4.67 x 103 =

Answers

Answer:

                11

3.456 × 10

Step-by-step explanation:

11
3.456 x 10
I think so lol :))

Peyton is taking a multiple choice test with a total of 20 points available. Each
question is worth exactly 2 points. What would be Peyton's test score (out of
20) if she got 4 questions wrong? What would be her score if she got x
questions wrong?

Answers

Answer:

36

Step-by-step explanation:

So u do 20 multiply 2=40-4=36

to check the answer we know that it has to be out of 100% so u can do 20+36+40+4=100 so she got 36/100% which is an F and she got 16 as her finale score I hope this works

can someone help me solve 70 < 3x + 10 < 100

Answers

Answer:

20<x<30

Step-by-step explanation:

70 < 3x + 10 < 100

first part:

70 < 3x + 10

70-10<3x

60/3<x

20<x ( first part solution)

second part

3x + 10 < 100

3x<100-10

3x<90

x<90/3

x<30 ( second part)20<x<30

Using the diagram above solve for x

Answers

Answer:

Step-by-step explanation:

X + 3 + X + X = 180

3X + 3 = 180

3X = 177

3X   =   177

ــــــــــــــــــــــــــ

3            3

X = 59

3x=177 so dived 177 by 3 hope it helped!

pls help best answer gets brainiest

Answers

Answer:

1/8

Step-by-step explanation:

3/4 can be written as 6/8, -5+6 is 1 so the answer is 1/8.

solve for f
-f +2 + 4f = 8 - 3f

Answers

Answer:

f=1

Step-by-step explanation:

Let start off with doing -f plus 4f which gives you 3f. The equation would now be 2+3f=8-3f. Add 3f so you can cancel out the -3f and add the 3f to the other 3f. Now your equation is 2+6f=8. Cancel out do by doing -2. (Don't forget to to it to the 8 also.) Now your equation is 6f=6. Divide 6 from both sides to get 1. (You divide because you want to get f alone.

A regular hexagon has perimeter 90 meters. What is the length of one side of the hexagon?

Answers

Answer:

15 metres

Step-by-step explanation:

A hexagon has 6 sides:

Let x be the length of one side:

6x= 90

x = 90 / 6 = 15 m.

Hey there glad I can help!!

Answer:

15

Step-by-step explanation:

90/6=15

If this satisfies you please consider giving me brainiest :D

Simplify
3a + 2b - 8a + b

Answers

Answer: -5a + 3b

Step-by-step explanation:

3a + 2b - 8a + b

Start with writing the like terms next to each so that you don't get confused:

3a - 8a + 2b + b

Now, simply the 'a' variable to get:

-5a + 2b + b

Finally simplify the 'b' variable to get:

-5a + 3b

The above expression cannot be simplified further as they do not have any common terms. Therefore, the expression -5a + 3b is in it's simplest form.

The required simplified expression is given as -5a + 3b.

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

here,
Given expression,
= 3a + 2b - 8a + b
For the above expression, we have to add the coefficients of  a and b.
= -5a + 3b

Thus, the required simplified expression is given as -5a + 3b.

Learn more about simplification here:

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HELP PLEASE ASAPPP !!!!!!

Answers

Answer:

Step-by-step explanation:

3²×3^4 = 3^6  ( when multiply add exponents)

correct answers:

first one 3^6

fourth one : 3^-4 * 3^10 = 3^6 (-4+10=6)

sixth one : 3³*3³ = 3^6

last one : (3*3)(2*3*3*3)= 3²*3^4 = 3^6

I need the answer to this please help

Answers

It’s the side with 4 dots because the theoretical probability is 1/6 * 60 which is 10.

Answer:

4

Step-by-step explanation:

The theoretical probability of getting a number is 1/6 since there is 6 sides

We rolled the dice 60 times

The experimental = x/60  where x is the number of times the number comes up

We want the theoretical to equal the experimental

1/6 = x/60

1/6 * 10/10 = 10/60

x = 10

This occurs for the number 4

When full, one of the pools at Sapphire Island will hold 43,000 gallons. The pool currently holds 20,000 gallons of water and is being filled at a rate of 130 gallons per minute. Write and solve an equation that can be used to find h, the number of hours it will take to fill the pool from its current level.

Answers

Answer:  Explanation and answer is attached.

Step-by-step explanation:

Fifteen seventh graders were randomly selected to see how many pushups in a row they could do. Their data are shown. A. b. 45, 40, 36, 38, 42, 48, 40, 40, 70, 45, 42, 43, 48, 36

Answers

Answer:

Mean of this data set is 43.7857

the median of this data set is 42

Step-by-step explanation:

The complete question is:

Fifteen seventh graders were randomly selected to see how many pushups in a row they could do. Their data are shown. A. b. 45, 40, 36, 38, 42, 48, 40, 40, 70, 45, 42, 43, 48, 36

a. Determine the mean of this data set.

b. Determine the median of this data set.

Given:

Data:

45, 40, 36, 38, 42, 48, 40, 40, 70, 45, 42, 43, 48, 36

To find:

a) Mean

b) Median

Solution:

a)

The formula to find Mean is :

Mean = Sum of all the values / Total number of values

          = ∑ x / n

Here there are total 14 values so n = 14

Now lets find sum of all the values

∑ x =  45 + 40 + 36 + 38 + 42 + 48 + 40 + 40 + 70 + 45 + 42 + 43 + 48 + 36

     = 613

Now compute Mean:

Mean = ∑ x / n

          =  613 / 14

         = 43.785714

Mean = 43.7857

b)

The formula to find Median is:

Since there are 14 values in the data this means the data has even number of values. So to compute the median of even number of values:

First put the values in order.

Second, find the middle pair of values in data

Third, find the value that is half way between them i.e. by adding the two middle pair values and dividing the result by 2

45, 40, 36, 38, 42, 48, 40, 40, 70, 45, 42, 43, 48, 36

Ordering the values :

36, 36, 38, 40, 40, 40, 42, 42, 43, 45, 45, 48, 48, 70

Find the middle two numbers:

42, 42

We can see that both are same values so median value is 42 but to follow the above steps:

Now add these two numbers and divide the sum by 2:

42 + 42 = 84

84/2 = 42

So the median of this data set is 42

Please solve 5q+6=2q-2+q.

Answers

Answer:

q= -4

Step-by-step explanation:

[tex]5q + 6 = 2 q- 2 + q[/tex]

Collect like terms and simplify

[tex]5q - 2q - q = - 2 - 6 \\ 2q = - 8[/tex]

Divide both sides of the equation by 2

[tex] \frac{2q}{2} = \frac{ - 8}{2} \\ [/tex]

Simplify

[tex]q = - 4[/tex]

The requried solution to the equation 5q + 6 = 2q - 2 + q is q = -4.

To solve the equation 5q + 6 = 2q - 2 + q, we need to simplify and combine like terms. Let's proceed step by step:

First, let's combine the q terms on the right side of the equation:

5q + 6 = 2q - 2 + q

Combining the q terms on the right side, we have:

5q + 6 = 3q - 2

Next, let's isolate the q term by moving all other terms to the opposite side:

To move the 3q term to the left side, we subtract 3q from both sides:

5q - 3q + 6 = -2

Simplifying the left side:

2q + 6 = -2

Next, let's isolate the constant term by moving 6 to the right side:

Subtracting 6 from both sides:

2q = -2 - 6

2q = -8

Finally, to solve for q, divide both sides by 2:

q = -8/2

q = -4

Therefore, the solution to the equation 5q + 6 = 2q - 2 + q is q = -4.

Learn more about the solution of the equation here:

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would someone help me understand this type of math

Answers

I never understand that
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