PLEASE HELP!! WILL MARK BRAINLIEST AND THANK YOU!!

Find the value of x.

PLEASE HELP!! WILL MARK BRAINLIEST AND THANK YOU!!Find The Value Of X.

Answers

Answer 1

Answer:

x = 121

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n = 7, thus

sum = 180° × 5 = 900°

Sum the given angles and equate to 900

x + 125 + 119 + 117 + 145 + 133 + 140 = 900, that is

x + 779 = 900 ( subtract 779 from both sides )

x = 121


Related Questions

A path starts and ends at the same vertex.
False​

Answers

No it does not. False

The temperature changed from 7°f at 6pm to -5°f at midnight. What was the difference between the high an low temperatures? Whats was the average change in temperature per hour?

Answers

Answer:

Difference between high and low temperatures: 12°F

Average change in temperature per hour: 2°F

Step-by-step explanation:

The difference between high and low temperatures was: 7 - (-5) = 12 (°F)

Midnight is 12am, so 6pm to midnight is 6 hours.

The average change in temperature per hour is: 12 / 6 = 2 (°F)

What is the perimeter of this rectangle?

Answers

Step-by-step explanation:

The perimeter of a rectangle is 2(l+b)

l= x2-x1

b=y2-y1

2(l+b)=2(x2-x1+y2-y1)

How do you turn 1/8 into a decimal and a percent

Answers

Divide 1 by 8 which is 0.125, for a decimal. Then to turn it into a percent move the decimal 2 places to the right, then add the percent to the end; 12.5%

Final answer:

The fraction 1/8 can be converted into a decimal by dividing the numerator by the denominator, yielding 0.125. This decimal can then be converted into a percent by multiplying by 100, yielding 12.5%.

Explanation:

To convert the fraction 1/8 into a decimal and a percent, we need to perform two types of conversions: a fraction-to-decimal conversion and a decimal-to-percent conversion.

First, converting the fraction to a decimal. To convert a fraction to a decimal, divide the numerator (top number) by the denominator (bottom number). In this case, that gives us 1 ÷ 8 = 0.125.

Then, converting the decimal to a percent. A decimal can be converted to a percent by multiplying it by 100. So 0.125 * 100 = 12.5%. Therefore, the fraction 1/8 is equal to 0.125 as a decimal and 12.5% as a percentage.

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Chase makes 2 gallons of soup for a dinner party. He serves 10 cups of soup to his guests. How many cups of soup will he have left over?

Answers

Answer:

d

Step-by-step explanation:

Answer:

22 cups

Step-by-step explanation:

Answer:

22 Cups of soup Left

Step-by-step explanation:

Given: 2 gallons of soup and 10 cups of soup served to guest.

To find: No. of cups of soup left.

We know that , 1 US Gallon = 16 US cups

⇒ 2 gallon of soup = 2 × 16 = 32 cups of soup

So, Remaining No. of Cups of soup = 32 - 10

                                                          = 22

Therefore, 22 Cups of soup Left

         

Solve the equation using inverse operations. Check your solutions. In your final answer, include all of your work.
5 - 2x^2 = -15

Answers

5-2x2=-15

Two solutions were found :

                  x = ± √10 = ± 3.1623

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    5-2*x^2-(-15)=0

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 (5 -  2x2) -  -15  = 0

Step  2  :

Step  3  :

Pulling out like terms :

3.1     Pull out like factors :

  20 - 2x2  =   -2 • (x2 - 10)

Trying to factor as a Difference of Squares :

3.2      Factoring:  x2 - 10

Theory : A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

        A2 - AB + BA - B2 =

        A2 - AB + AB - B2 =

        A2 - B2

Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression.

Check : 10 is not a square !!

Ruling : Binomial can not be factored as the difference of two perfect squares.

Equation at the end of step  3  :

 -2 • (x2 - 10)  = 0

Step  4  :

Equations which are never true :

4.1      Solve :    -2   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation :

4.2      Solve  :    x2-10 = 0

Add  10  to both sides of the equation :

                     x2 = 10

When two things are equal, their square roots are equal. Taking the square root of the two sides of the equation we get:  

                     x  =  ± √ 10  

The equation has two real solutions  

These solutions are  x = ± √10 = ± 3.1623  

Two solutions were found :

                  x = ± √10 = ± 3.1623

To solve the equation 5 - 2x^2 = -15 using inverse operations, we need to isolate the variable x on one side of the equation.

1. Start by adding 15 to both sides of the equation to eliminate the constant term on the right side:

5 - 2x^2 + 15 = -15 + 15

20 - 2x^2 = 0

2. Next, divide both sides of the equation by -2 to isolate the x^2 term:

(20 - 2x^2) / -2 = 0 / -2

-10 + x^2 = 0

3. Now, move the constant term to the other side by adding 10 to both sides:

-10 + x^2 + 10 = 0 + 10

x^2 = 10

4. To solve for x, we need to take the square root of both sides of the equation:

√(x^2) = √(10)

x = ±√(10)

To check the solutions, substitute them back into the original equation and see if they make it true:

For x = √(10):

5 - 2(√(10))^2 = -15

5 - 2(10) = -15

5 - 20 = -15

-15 = -15 (True)

For x = -√(10):

5 - 2(-√(10))^2 = -15

5 - 2(10) = -15

5 - 20 = -15

-15 = -15 (True)

So, the solutions to the equation 5 - 2x^2 = -15 are x = √(10) and x = -√(10).

Which of the following numbers could not be represent a probability

Answers

[0,1] could not be used to represent a probability.

Find the pay per hour if you earned $102.67 for 16 hours worked.

Answers

Answer:

heyooo!

the correct answer is youll be making 6.41 an hour.

hope this helps!!

Step-by-step explanation:

if you divide 102.67 by 16 hours youll end up with your hourly pay which is 6.41

1-sin60÷cos60=1-Tan30÷1+Tan30

Answers

Step-by-step explanation:

LHS=(1-sin60)/cos60

=(1-√3÷2)/1÷2

=2(1-√3÷2)

=2-√3

RHS=(1-tan30)/(1+tan30)

={1-(1÷√3)}/{1+(1÷√3)}

={(√3-1)/√3}/{(√3+1)/√3}

=(√3-1)/(√3+1)

={(√3-1)(√3-1)}/{(√3+1)(√3-1)}

=(3-√3-√3+1)/(3-1)

=(4-2√3)/2

=2-√3

Therefore LHS=RHS

One side of a triangle is 3 1/3 cm, another side is 2/3 cm shorter than the first side, and the third side is 1 2/3 cm longer than the first side. What is the perimeter of the triangle?


Thanks so much

Answers

3 1/3 - 2/3 = 2 2/3
3 1/3+ 1 2/3 = 5
3 1/3 + 5 + 2 2/3 = 11

Good evening ,

_______

Answer:

perimeter = 22/3 cm

____________________

Step-by-step explanation:

Look at the photo below for the details.

:)

3(b+1)=4b-1 I need help

Answers

Answer:

3b + 3 = 4b - 1

3= b - 1

b= 4 is the solution

What is the solution to the following system of equations?


It has infinitely many solutions.
It has no solution.
It has one solution (2, –3).
It has one solution (4, 0).

Answers

Answer:

A. Infinite solutions.

Step-by-step explanation:

3x - 2y = 12

6x - 4y = 24

The second equation can be formed by multiplying the first by 2. So if we graphed them they would give the same line. So the equations are identical and there are infinite solutions.

A.Infinite solutions

2. Write the number in standard form.
4 ten thousands, 1 thousand, 9 hundreds,
8 tens, and 4 ones
21.1984

Answers

The number "4 ten thousands, 1 thousand, 9 hundreds, 8 tens, and 4 ones" written in standard form is 41,984.

To write the number 4 ten thousands, 1 thousand, 9 hundreds, 8 tens, and 4 ones in standard form, we can add up the value of each place:

4 ten thousands = 4 × 10,000 = 40,000

1 thousand = 1 × 1,000 = 1,000

9 hundreds = 9 × 100 = 900

8 tens = 8 × 10 = 80

4 ones = 4

Now, add up these values:

40,000 + 1,000 + 900 + 80 + 4

= 41,984

Therefore, the number "4 ten thousands, 1 thousand, 9 hundreds, 8 tens, and 4 ones" written in standard form is 41,984.

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What is -5 1/4 written as a decimal

Answers

Answer:

-5.25

Step-by-step explanation:

1/4 is equal to 0.25

on his fifth birthday ,paul was 42 inches tall. on his seventh birthday he was 48inches tall​

Answers

Answer:

Paul grew 6 inches in 2 years

Step-by-step explanation: he was 42 inches before now he is 48 inches

Will give brainliest 9 +10

Answers

Twenty - One (its a vine if you didn’t get the reference)

Please help with this math question graph

Answers

Answer:

its the first one

Step-by-step explanation:

What is the absolute value of -3/8? A. 0 B. -3/8 C. 3/8 D. -3/8 or 3/8

Answers

The answer is 3/8. The absolute value of a number is its distance from zero on the number line.

Answer:

The answer is 3/8. The absolute value of a number is its distance from zero on the number line.

Step-by-step explanation:

2. Simplify the expression.
7 + 10x - 7 + 7x

Please Help!!!

Answers

Answer:

17x

Step-by-step explanation:

10+7 = 17

7-7 = 0

7+10x-7+7x
7-7=0 So,
10x+7x
17x

Point A is located at (-5, 2) and is reflected in the y-axis. What are the coordinates of point A'?
A.(-5, -2)
B.(5, 2)
C.(5, -2)

Answers

When a point is reflected across the Y axis, the Y coordinate remains the same and the X coordinate becomes the opposite of the original value.

Points are written as ( X,Y)

The original point is (-5,2)

The opposite x value would be 5 and the Y value stays the same.

The reflected point would be (5,2)

The answer is B.

Final answer:

A.(-5, -2). The reflected point A' after reflecting point A with coordinates (-5, 2) in the y-axis will have coordinates (5, 2).

Explanation:

When point A, which is located at (-5, 2), is reflected in the y-axis, you have to switch the sign of the x-coordinate while keeping the y-coordinate the same. This is because reflection across the y-axis means that the point's position will be mirrored over the y-axis, resulting in the same vertical (y) positioning but an opposite horizontal (x) positioning. Therefore, the reflected point A', will be at (5, 2), which corresponds to answer B.

The discount on a new copier was $220. This was a discount of 14%

Answers

The original price would be $189.20 because the decimal is 0.14 is ( you move the decimal point to the right of where the number starts) then multiply that decimal to 220 and it would be 30.8. Subtract 30.8 and you get $189.20

Plz answer all questions!!! 20 points!!!

Questions:

(question A) What two points are a distance of 5 from -2 on a number line?

(question B) What two points are a distance of 4 from 5 on a number line?

(question C) What two points are a distance of 7 from -1 on a number line?

(question D) What two points are a distance from 3 from 7 on a number line?

(question E) What two points are a distance of 10 from 2 on a number line?

(question F) What two points are a distance of 1 from -5 on a number line?

Answers

Answer:

A: -7 and 3

B: 1 and 9

C: -8 and 6

D: 4 and 10

Step-by-step explanation:

you just count the distance as your going:

-8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6

......^.........................................^

-7 and 3 are both 5 away from -2

There were some toads in the pond. 3 more jump in. 2 toads jumped out of the pond. There are now 6 toads in the pond. How many toads were in the pond to begin with?

Answers

Answer:

5

Step-by-step explanation:

do reverse calculations

we know that we ended with 6

since 2 jumped out we add them back in

6+2 = 8

we remove the toads that jumped in because they are not part of the original group

8-3 = 5

there were 5 toads in the beginning

Final answer:

There were originally 5 toads in the pond. This is determined by reverse calculation of the toads jumping in and out.

Explanation:

To solve this math problem you can use a process of reverse calculation. At the end of the toad jumping in and out, there were 6 toads in the pond.

If we take into account the events that happened before we have that 2 toads jumped out so there must have been 8 toads before that(6 + 2).

Further back, 3 toads jumped in which means there must have been 8 - 3 = 5 toads in the pond to begin with.

So, initially, before any of the jumping happened, there were 5 toads in the pond.

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is
[tex] \frac{3}{6} [/tex]
a rational number?​

Answers

Hey!

-----------------------------------------

Answer: Yes 3/6 is rational!

-----------------------------------------

Why? Well, because 3 and 6 are integers that don't repeat. 3/6 simplifies to 1/2 or 0.5 which doesn't repeat so it's rational.

-----------------------------------------

Hope This Helped! Good Luck!

which of these sets of angle measures could be three angles in a triangle
A) 40° , 50°, 60°
B) 50°, 60°,70°
C) 60°, 70°, 80°
D) 70°, 80°,90°​

Answers

It’s going to be B. 50+60+70=180 which is how many degrees are in a triangle.

The measure of angles in a triangle are 50°, 60° and 70°.

Option B is true.

What is Triangle?

A triangle is a three sided polygon, which has three vertices and with three angles.

Since, The sum of all three angle in a triangle will be 180 degree.

Now, For option A;

The angles are 40° , 50°, 60°.

Sum of angles = 40° + 50° + 60°

                      = 150°

Hence, These set are not possible.

For option B;

The angles are 50° , 60°, 70°.

Sum of angles = 50° + 60° + 70°

                      = 180°

Hence, These set are possible.

So, The measure of angles in a triangle are 50°, 60° and 70°.

Option B is true.

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Select all of the angles that have a positive measure

Answers

Answer: angle 2, 5, and 6

Step-by-step explanation:

edge 2023

Final answer:

In mathematics, angles have a positive measure when they are measured counterclockwise from the reference line or origin.

Explanation:

In mathematics, angles can be measured in positive or negative degrees or radians. An angle is considered to have a positive measure if it is measured in the counterclockwise direction. Therefore, any angle that is measured counterclockwise from the reference line or origin is considered to have a positive measure.

For example, if we have a line segment and we measure an angle of 60 degrees counterclockwise from the positive x-axis, the angle has a positive measure. Similarly, if we measure an angle of 45 degrees counterclockwise from the positive y-axis, the angle also has a positive measure.

What is 4,226 - 2,958

Answers

Answer:

1268

Step-by-step explanation:

4226-2958=1268 mark the brainliest

Final answer:

The difference between 4,226 and 2,958 is 1,268.

Explanation:

The question is asking for the difference between 4,226 and 2,958. To solve this, we subtract 2,958 from 4,226. Starting from the rightmost digit, subtract 8 from 6 which gives us 2. Then subtract 5 from 2 and you get a negative number so we need to borrow from the next digit. Borrow 1 from the leftmost digit, which makes it 3, then subtract 5 from 13 and you get 8. Finally, subtract 2 from 3, giving us 1. The answer is 1,268.

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What term describes this polygon?
heptagon
dodecagon
17-gon
12-gon

Answers

Step-by-step explanation:

heptagon = 7 sides

dodecagon = 12 sides

heptadecagon = 17 sides

Given l||m and m∠1 = 60°, select all angles that are also equal to 60°.

you can choose more than one


the answer choices are

2

3

4

5

6

7

8

Answers

Answer:

m∠2

m∠3

m∠4

Step-by-step explanation:

we know that

m∠2=m∠1 ----> by vertical angles

m∠3=m∠1 ---- by corresponding angles

m∠4=m∠1 ----> by alternate exterior angles

Answer:

m<3

m<2

m<4

Step-by-step explanation:

Explain the difference between a markup and a margin.

Answers

Answer:

Step-by-step explanation: mark up would be a fixed percentage, say you mark up your goods 50% your cost is $1 and 50% m-up would mean a selling price of 1.50. given this , your margin is 50cents. but margin may vary, there are indirect costs, example. store a charges, 1% display fee, store b charges 3% display fee. so, in store by your margin decreases. other factor that may affect margin are commission, local taxes, store charges.

Answer:

The answer is

Profit margin is sales minus the cost of goods sold. Markup is the percentage amount by which the cost of a product is increased to arrive at the selling price. Markup is the retail price for a product minus its cost, but the margin percentage is calculated differently.

on edg 2020

Step-by-step explanation:

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