Mathematics Middle School

1 GEOMETRY - 1206310)

. An angle expression in an equilateral triangle is 3x + 12. What is the value of X?

Answers

Answer 1

Answer:

16

Step-by-step explanation:

The angle in an equilateral triangle is given as:

3x + 12

The angle is an equilateral triangle is 60°. Therefore:

3x + 12 = 60

=> 3x = 60 - 12 = 48

x = 48 / 3 = 16

x is 16

Related Questions

Solve the equation. –3|y – 3| = 9

Answers

Answer:

 y = 0

Step-by-step explanation:

-3(y-3)=9

One solution was found :

                  y = 0

Rearrange:

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

                    -3*(y-3)-(9)=0

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 (0 -  3 • (y - 3)) -  9  = 0

Step  2  :

Equation at the end of step  2  :

 -3y  = 0

Step  3  :

Solving a Single Variable Equation :

3.1      Solve  :    -3y = 0

Multiply both sides of the equation by (-1) :  3y = 0

Divide both sides of the equation by 3:

                    y = 0

Answer:

No solution

Step-by-step explanation:

–3|y – 3| = 9

⇌       (Divide both sides by -3)

|y – 3| = -3  impossible

because  |y – 3| is greater than 0 and -3 is less than 0.

What is the vale of of???

Answers

Answer:

B

Step-by-step explanation:

Because ∠EDF and ∠BDC are vertical angles, ∠D = 9x. Since ∠ABD and ∠BDC are supplementary, our answer is 2x + 105° + 9x = 180° or B.

Answer:

B

Step-by-step explanation:

∠ BDC = 9x ( vertical angles )

∠ ABD and ∠ BDC are supplementary , thus

∠ ABD + ∠ BDC = 180 , substitute values

2x + 105 + 9x = 180 → B

Please help me!!! :(

Answers

Answer:

280

Step-by-step explanation:

7*5*4*2=280

I don't know how to find the value of x in the isosceles triangle.

Answers

Answer:

x=4

Step-by-step explanation:

split the triangle into two and you will get another smaller triangle as shown in what I have drawn

so notice that there's a right angle?? this means that this is a right angle triangle and you can use Pythagoras theorem to solve it

so by Pythagoras theorem, 5^2= 3^2 + x^2

then you can solve for x

Match each quadratic function with its respective graph.

f (x) = x^2 + 6x - 5
f (x) = x^2 - 4x + 5
f (x) = -x^2 - 2x +3
f (x) = x^2 + 4x - 5
f (x) = -x^2 + 2x - 3
f (x) = x^2 - 6x + 5

Answers

The quadratic functions that fits with its respective graph are.

1). f (x) = x^2 - 4x + 5

2). f (x) = -x^2 - 2x +3

3). f (x) = x^2 - 6x + 5

Here is how it looks.

The graph has been plotted to show the graphs that corresponds to the equations.

What is a Quadratic Equation?

A quadratic equation is what can be written in the form of ax²+bx+c=0

The equations given are

f (x) = x² + 6x - 5

f (x) = x² - 4x + 5

f (x) = -x² - 2x +3

f (x) = x² + 4x - 5

f (x) = -x² + 2x - 3

f (x) = x² - 6x + 5

The quadratic equations are plotted to determine which graph is corresponding to which equation.

To know more about Quadratic Equation

https://brainly.com/question/2263981

#SPJ5

Identify the closest perfect squares less than and greater than the radicand below, respectively.
135
A. 25 and 36
B. 25 and 40
C. 30 and 36
D. 30 and 40

Answers

It would be A because they’re both perfect squares

***PLEASE HELP***


If the expression f2+g4−2f+1 is rewritten in the form a2+(g2)2, what must be the value of a?

Answers

Answer:

(f-1)

Step-by-step explanation:

If you substitute a for (f-1) you get the expression...

The value of a if the expression f² + g⁴ − 2f + 1 is rewritten in the form a² + (g²)2 is f

How to rewrite the algebraic expression

f² + g⁴ − 2f + 1

f(f - 2) + g⁴ + 1

From the expression

a = f

Therefore, the value of a is f

Learn more about algebraic expression:

https://brainly.com/question/4344214

Which statements are true about exponential decay functions? Check all that apply.
The domain is all real numbers.
As the input increases, the output increases.
The graph is the same as that of an exponential growth function
The base must be less than 1 and greater than 0.
The function has a constant multiplicative rate of change.

Answers

Answer: the domain is all real numbers.

The base must be less than 1 and greater than 0.

The function has a consumer multiplicative rate of change.

Step-by-step explanation:

Answer:

A, D, E

Step-by-step explanation:

100% on edg

I know it's Negative Correlation buy I'm so confused on b....

Answers

Basically, the question is asking you if there’s any outliers. An outlier is a data point that seems to not follow the other data points. The outlier here is at about (8, 8000). This point does not follow the negative trend of the other points.



Maya can run 18 miles in 3 hours, and she can bike 18 miles in 2 hours.




When Maya biked for 3 hours and then ran for 1 hour and 30 minutes, what was her average speed?

Answers

Answer:

6mph

Step-by-step explanation:

Speed = distance/time

so you would do 18/3 and you would get 6

Question in screenshot. Please help

Answers

The answer is D, 48% of the students preferred the sea coast

Answer: D

Step-by-step explanation:

72/150 x 100 = 48%

Geographers use negative numbers to represent points below sea level and positive numbers to represent points above sea level. For example, the lowest point in Minnesota is at − 17.3 meters, and the highest point is at 14.1, point, 1 meters. What does 0 meters represent?

Answers

Answer:

Step-by-step explanation:

Sea Level

Write an equation in slope-intercept form for the line.

slope = 0, y-intercept = 3

Answers

Answer:  y = 0x+3 or y = 3

The slope is 0 and the y intercept is 3. So m = 0 and b = 3.

Plug those into y = mx+b to get y = 0x+3, and that simplifies to y = 3.

This graphs out a horizontal line that passes through the two points (0,3) and (1,3).

Help ASAP plz will give brainliest!!!

Answers

Answer:

3/4

Step-by-step explanation:

There are 8 outcomes and 6 of them are odd.

6/8 = 3/4

Thus probability is 3/4

Answer:

3/4

Step-by-step explanation:

No. of sections = 8

No. of odd numbers = 6

Probability of getting an odd no. = 6÷8 = 3/4

What are the values of a, b, and c in the quadratic equation –2x^2 + 4x – 3 = 0?

Answers

Answer:

a.-2

b.4

c.-3

Step-by-step explanation:

write a,b,c on top of each number to the left of the =0

Answer:

The values are: a ; (-2) b ; (4) c ; (-3)

Step-by-step explanation:

The quadratic equation is: ax^2+bx+c = 0

So, you can get your answers by using that.

Please help as quickly as possible

Answers

Answer:

The next fraction in the sequence is:

4/27

Step-by-step explanation:

How you can see, the fractions are decreasing as the sequence advance, to identify the proportion in which it decreases, we will divide the first and the second fractions:

3/4 / 1/2 = 3/2 or 1.5

Now, we just need to divide all the fractions in 3/2 to identify the next fraction, as I show below:

3/4 / 3/2 = 1/2 1/2 / 3/2 = 1/3 1/3 / 3/2 = 2/9 2/9 / 3/2 = 4/27

As you can see, all the results own to the sequence given, for this reason, the last result 4/27 is the correct fraction next to 2/9.

Bill receives a monthly stipend of $800. He also works at a bookstore making $8 an hour. He wants a monthly income of $1,200. How many hours does he need to work each month?

Answers

Answer:

150 hours

Step-by-step explanation:

Bill receives $800 as monthly stipend. But after this statement, it says Bill also works at a bookstore. So, it should mean that Bill does not receive $800 from the bookstore. He receives $800 from another job because of the word "also" which is mentioned in the second statement.

If the question is, to find out the number of hours Bill has to work each month if he assumes his monthly income to be $1,200 then 1200/8 = 150

But if the question is trying to mean that Bill receives $800 as a monthly stipend from the bookstore then this answer is wrong.

Then, we would have to calculate the difference.

$1200 - $800 = $420

Time = $420/8 = 50 hours.

Everything depends on the question. The question however needs some explanation, because this question is not written in a clear way.

I'm so confused, can someone please help. thx

Answers

The answer is y = x •15

Answer:

26.25 in³, y = 15x

Step-by-step explanation:

2. Volume is multiplying the length, width, and height of a rectangular prism together.

Therefore, the volume of this rectangular prism is 6 * 1.25 * 3.5

= 26.25 in³

3. The equation that represents the function table will describe the relationship between x and y. As we can see, for every x value, the y value grows by 15. Therefore:

y = 15x

Hope this helps :)

if f(x)=x^2 and g(x)=1/2x+3 find g(f(-1))

Answers

Answer:

1/5

Step-by-step explanation:

F(x)=x^2

g(x)=1/(2x+3)

g(f(-1))=?

x=-1→f(-1)=(-1)^2→f(-1)=1

g(f(-1))=g(1)=1/[2(1)+3]=1/(2+3)→g(f(-1))=1/5

g
(
f
(
x
)
)
g
(
f
(
x
)
)
Evaluate
g
(
f
(
x
)
)
g
(
f
(
x
)
)
by substituting in the value of
f
f
into
g
g
.
g
(
2
x
−
3
)
=
(
2
x
−
3
)
+
1
g
(
2
x
-
3
)
=
(
2
x
-
3
)
+
1
Add
−
3
-
3
and
1
1
.
g
(
2
x
−
3
)
=
2
x
−
2

How many edges and vertices does a prism with a 50 sided end face have

plzzz help me
I will mark as brainliest

Answers

Each with 220 sides,meaning 440 edges on the end

[tex]18-\sqrt{} -25[/tex]

Answers

Answer:

-(i×5) + 18

Step-by-step explanation:

Simplify the following:

-sqrt(-25) + 18

sqrt(-25) = sqrt(-1) sqrt(25) = i sqrt(25):

18 - i sqrt(25)

sqrt(25) = sqrt(5^2) = 5:

Answer: -(i×5) + 18

Choose the graph below that has an undefined slope. (5 points) vertical line through the point negative 6 comma 0 line through the points negative 1 comma 1 and 0 comma negative 4 horizontal line through the point 0 comma negative 6 line through the points negative 2 comma negative 3 and 0 comma 6

Answers

Answer:

vertical line through the point (-6,0)

Step-by-step explanation:

Vertical lines have an undefined slope.

681/4 i dont know this

Answers

170/4 I’m sure that’s the answer your looking for

The right answer is 170.25

please see the attached picture for full solution

hope it helps

Good luck on your assignment

would you rather have 1 of 8 slices from a 10" pizza or 1 of 10 slices from a 14" pizza?

Answers

1 8 of a pizza you get more
18 pizza answers that it

Plz help ! Analyze the work used to write an equivalent equation for y. 3y = 36 – 5x 1.  Divide both sides by 3: StartFraction 3 y Over 3 EndFraction = StartFraction 36 over 3 EndFraction minus 5 x. y = 12 minus 5 x. What can you conclude about the work? The work was completed correctly. Both sides needed to be multiplied by 3, rather than divided by 3. When dividing 36 by 3, the answer should have been 1/12, not 12. Both terms on the right side need to be divided by 3, not just the 36.

Answers

Answer:

its d

Step-by-step explanation:

i got it right on edge

Answer:

D)  Both terms on the right side need to be divided by 3, not just the 36.

Step-by-step explanation:

got it right on edge2020

the perimeter of a regular seven-sided polygon is 11x - 4. If x = 8, what is the length of one side of the polygon?

Answers

Answer:

12

Step-by-step explanation:

Look at the attachment

Help please!! Anyone??

Answers

Answer:

38

Step-by-step explanation:

180-142=38

Answer:

180-142 (supplementary angles)

38

4−2(x−5)=x−19? Help

Answers

Answer:

x=11

Step-by-step explanation:

Start by distributing:

4-2(x-5)= x-19

4-2x+10= x-19

Add 19 and 2x to both sides (the -19 and -2x will turn into 0)

4+10+19= 2x+x

Add 4+10+19

33= 3x

Divide by 3

x=11

The temperature in degrees Celsius, c, can be converted to degrees Fahrenheit, f, using the equation f = StartFraction 9 Over 5 EndFraction c + 32. Which statement best describes the relation (c, f)?
A. It is a function because –40°C is paired with –40°F.
B. It is a function because every Celsius temperature is associated with only one
Fahrenheit temperature.
C. It is not a function because 0°C is not paired with 0°F.
D. It is not a function because some Celsius temperatures cannot be associated with
a Fahrenheit temperature.

Answers

Answer:

B

Step-by-step explanation:

This is the answer because a function cannot have an x-value that produces more than one y-value.

The equation is in slope-intercept form (y = mx + b), where F is y and C is x.

Evaluate 3x for x = −2, x = 1, and x = 3. Question 18 options: A) 1∕3, 0, 9 B) 1∕9, 3, 27 C) 9, 3, 27 D) 1∕9, 9, 27

Answers

Answer:

D

Step-by-step explanation:

Took it on Ed but it might be different

Answer:

D

Step-by-step explanation:

I did the math :)

Other Questions
Need help with this Will website layout and design differ for companies with similar business focuses? State your opinion. use factoring to solve x^2-2x-35=0 Find the greatest and the smallest numbers that can be written using three ones, decimal points and/or exponents. Which statement best describes one way that the molecules differ from atoms? a. A molecule can contain a nucleus about which its electrons orbit b. A molecule can contain two atoms of the same element. C. Only a molecule can be the smallest particle of a certain element. d. Only a molecule can be broken down into two or more different elements. Which of the following is the equation of a line in slope-intercept form for a line with slope =1/4 and y-intercept at (0,-1)? A. y=-1/4x - 1/4 B. y= 1/4x - 1 C. y= 1/4x +1 D. y=4x - 1 What is Trichotillomania? What type of disease is it? What causes it? find the value of each trigonometric ratio part 3 37 POINTS pls help time limit 13 minute left... In which areas do you think peoples rights and liberties are at risk of government intrusion? Calculate the times interest earned ratio using the financial statement data shown below. Current liabilities $185 Income before interest and taxes $170 10% Bonds, long-term 360 Interest expense 36 Total liabilities 545 Income before tax 134 Stockholders' equity Income tax 29 Common stock 222 Net income $105 Retained earnings 289 Total stockholders' equity 511 Total liabilities and equity $1,056HHF's times interest earned ratio is:______.a. 10.00.b. 3.14.c. 1.54.d. 2.14.Current liabilities $180 Income before interest and taxes $11810% Bonds, long-term 360 Interest expense 36Total liabilities 540 Income before tax 82Shareholders' equity Income tax 20Capital stock 201 Net income $62Retained earnings 283Total shareholders'equity 484Total liabilities and equity $1,024HHF's debt to equity ratio is:________.a. 0.74.b. 0.56.c. 1.12.d. 1.90. you are emailing your cousin a care package in a box shaped like a cube. Each side of the box is 6 inches long. You mist cover the box with brown wrapping paper in order for the post office to accept it. What is the minimum amount of brown wrapping paper you will need in order to completely cover the box Which event is described in the excerpt from book 13 of homers Odyssey In general, which of the following is required for a successful marriage? Solve for x A) 5B) 6C)7D)8 Ill fine you brainlist if you answer please answer its URGENT Which countries invaded korea causing it to shutdown their borders and be know as the hermit kingdom? Category killers compete primarily on the basis of a. low prices and enormous product availability. b. enormous product selection and sales expertise. c. convenient locations and customer services. d. rock-bottom prices and moderate selections. e. one-stop shopping and product availability. The best way to make inferences is to combine background knowledge with ______or the proof found in the details provided in the text Conflict EvidenceSetting Resolution A manufacturing plant is planning to replace outdated equipment with more energy-efficient and environmental-friendly equipment. Two models are under consideration. Model A is sold for $159,000 and can produce at an optimum speed of 78 unit/hour. Model B is sold for the same price, but can produce at an optimum speed of 76 unit/hour. Model A requires 6 hours of maintenance for every 4300 units produced, while Model B requires 5 hours of maintenance for every 3300 units. The maintenance cost for both models is $100 per hour. The variable operating cost is $340 per hour for Model A and $290 per hour for Model B. Due to obsolete parts, there is a sunk cost of $2700 for model A and $1900 for Model B . 1. If the price of the product is $150 per unit and the company expects to sell 145,000 units each year, which model should be selected?2. What is the estimate of the cummulative average hours per unit required to produce the 5th unit of a production run that has a(n) 78% learning curve, if the first unit takes 50 hours? Which of the following is an arithmetic sequence?