Mathematics Middle School

In the diagram ABD and BDC are supplementary, the measure of EDF = 9x, and the measure of ABD = (2x + 105).
Based on this information, which equation can be used to find the value of x?

Options:
1. 9x=2x+105
2. 2x+105+9x=180
3. 2x+105+9x=80
4. 2x+106-9x=90

In The Diagram ABD And BDC Are Supplementary, The Measure Of EDF = 9x, And The Measure Of ABD = (2x +

Answers

Answer 1

Answer:

2) 2x + 105 + 9x = 180

Step-by-step explanation:

∠BDC = ∠EDF   { vertically opposite angles are equal}

∠BDC = 9x

∠ABD + ∠BDC = 180   {supplementary}

2x + 105 + 9x = 180

Related Questions

Which expression can be used to find the surface area of the following rectangular prism?

Answers

Answer:

d

Step-by-step explanation:

to find the surface area you have to add all the following numbers and double them

hope this helps

Answer:

D, if it is correct plz say thanks to let me know it is correct

Step-by-step explanation:

help please, what is the the perimeter of the figure to the nearest hundredth.

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Answer:

100

Step-by-step explanation:

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Answers

Answer:

C. 24 degrees

Step-by-step explanation:

All triangle must be 180 degrees in total. So you have to add all the known degrees together to find the missing degree.

120+36=156

Then subtract the sum of the known angles from 180 to find the degree of the unknown angle

180-156=24

Answer: C

Step-by-step explanation:

I'll explain why.

The sum of the angles in a triangle must be equal to 180º. We already know 2 of the 3 angles, therefore, we can make an equation to find x.

The sum of the angles (x+36+120) must be equal to 180 (=180)

x+36+120=180

Combine like terms

x+156=180

Subtract 156 to isolate x

x=180-156

x=24

2/3 divided by 1 1/2

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Answer: 0.4

Step-by-step explanation:

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Answer:

b

Step-by-step explanation:

A man has 1/4 of a kilogram of couscous. He shared them equally among 2 people. How many kilograms does each person get? Input your answer as a fraction of a kilogram.
I got an answer that felt way off... I just need to make sure I'm right!

Answers

Answer:

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Step-by-step explanation:

Answer:

1/8

Step-by-step explanation:

Write a number b increased by 3 as an expression.

Answers

Answer:

b+3

Step-by-step explanation:

The variable is "b", and increased is adding (+).

~Anna

Answer:

F(b)=b+3

Step-by-step explanation:

The heights of 200 adults were recorded and divided into two categories.
6' or over
Under 6
Male
14
88
Female
2
Which two-way frequency table correctly shows the marginal frequencies?

Answers

Answer: the answer is B

Step-by-step explanation:

14+6 is 16. Add 88 to 16 and you get 104. 200-104=96.

The two-frequency table that correctly shows the marginal frequencies of the given data is: B.

What is a Marginal Frequency in a Two-way Frequency Table?

In a two-way frequency table, the marginal frequency is simply the the sum of any one of the columns or rows in a data.

In table B, 14 + 6 equals 16, so also does 88 + 16 = 104. Subtract 104 from 200, and you have 96.

Therefore, table B correctly shows the marginal frequencies.

Learn more about marginal frequencies on:

https://brainly.com/question/16377212

#SPJ2

x/7 > -2. Solve and graph. Help.

Answers

this is the answer hope i helped

Which description best compared the graph of the two functions below?

Answers

Answer:

The description that best compares the graph of the two function is:

         The line for function A is steeper.

Step-by-step explanation:

Answer:

The line for function a is a steeper

Step-by-step explanation:

A functiom is graphed on the coordinate plane.

What is the value of the function when x=4?​

Answers

Answer: The answer is 2. Go open of the x line 2 then it lines up with the y.

Answer:

I thought it was 1

Step-by-step explanation:

Ying Zyiyu covered the first 300 miles of a trip going at 60 mph and the last hundred going at 40 mph. What was his average speed for the entire trip?

NEED IN 5 MINUTES

Answers

Answer:

Average speed is (total distance)/(total time).

To find the total time we need to do some division.

Time for 200 miles=200/50=4 hours.

Time for 100=100/40=5/2 hours.

Total time=13/2 hours. Total distance=200+100=300 miles.

Av speed=300/(13/2)=300×2/13=600/13=46.15 mph approx.

math question down below screen shot

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Answer:

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Step-by-step explanation:

How many 4-digit numbers are multiples of at least one of these two numbers: 2, 5

Answers

Answer:

There is a total of 5,400 4 digit numbers that are multiples of 2 and/or 5.

Step-by-step explanation:

Hope this helps! :)

Frank will paint a wall that measures 10 feet by 14 feet what is the area of the wall that frank will paint

Answers

Answer:

140 ft squared

Step-by-step explanation:

Answer:

140 ft

Step-by-step explanation:

10 × 14 = 140 so the answer is 140 ft

Help me asap I’m turning this in late please hep

Answers

Answer:

The answer is 27 If not please correct me!

Answer:

27

Step-by-step explanation:

You need to plug 100 in for m and multiply that. Then you need to add 7 to 20 to get your answer.

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|5−4r|=17
Can someone answer this question for me?? I will mark you brainliest if you get the correct answer!!

Answers

Answer:

R=-3 which is the same thing as 11/2

Step-by-step explanation:

Answer:

r=−3,11/2

Step-by-step explanation:

thats what I got

Which steps should you follow to write an equivalent ratio to find 120% of 700?
part
120 x 1
700 x1 =
120
170
whole =
583
part
whole
100 x 5.83
120 x 5.83
= 700
part
whole
700 x 7
100 x 7
4,900
700
part
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Answers

Answer:

its D 100%

Step-by-step explanation:

Answer:

Its D

Step-by-step explanation:

Got 100% today :0

Math question down below

Answers

Answer:

24

Step-by-step explanation:

1 US Gallon = 8 US Pints

3 US Gallons = 24 US Pints

A mixed number contains a whole part and a ___ part.


answer and i give you braiest

Answers

Answer:

fraction

Step-by-step explanation:

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Answers

Answer:

127

Step-by-step explanation:

Answer:

x= 127 degrees

Step-by-step explanation:

use the vertical angles theorem to say that x=90*+37*. So, x=127 degrees.

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Answers

Answer:

A the first option

Which statement is true?

Answers

Answer:

all parallelograms are rectangles

Step-by-step explanation:

the have 2 sets of parallel lines that are equal in length

Can someone please do these problems on scratch paper 11-16

Answers

Sure but can you give me brainliest :D

Question 1
Solve for
using the similar triangles. Round to the nearest tenth. (For example, 10.578 would round to 10.6)
Question 2
Find the height of the tree to the nearest whole meter using the two similar triangles below. (For example. 10.57
3 m
30 m​

Please answer fast thank you

Answers

Answer:

1)x=21.33

2)Height of tree is 20 m

Step-by-step explanation:

Question 1

ΔABC ≈ΔADE

Property of similar triangles :Corresponding sides of similar triangles are all in the same proportion

So,[tex]\frac{AB}{AD}=\frac{BC}{DE}\\\frac{AB}{AB+BD}=\frac{BC}{DE}\\\frac{12}{12+6}=\frac{x}{32}\\\frac{12}{18}=\frac{x}{32}\\\frac{12}{18} \times 32 =x\\21.33=x[/tex]

Question 2: Find the height of tree

ΔDEF ≈ΔDHI

Property of similar triangles :Corresponding sides of similar triangles are all in the same proportion

So,[tex]\frac{DE}{DH}=\frac{EF}{HI}\\\frac{3}{30}=\frac{2}{HI}\\HI=\frac{2 \times 30}{3}\\HI=20[/tex]

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Answers

Answer:

Step-by-step explanation:

You read a graph from left to right, just like you would read words on a page in a book.  At the left-most "side" of this graph, we are way up at positive infinity.  As we move from left to right, the graph begins to drop in y values.  A drop in y values indicates a decreasing graph.  So it's decreasing, we have that part.  As the graph grows up into y values that increase forever, it will also grow in the x direction to negative infinity.  As the graph decreases in y values from left to right, the x values increase into positive infinity.  So your choice is the second one: The function is decreasing on the interval (-∞, ∞).

Answer:

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Step-by-step explanation:

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Answers

Answer:

(10,11)

(8,7)

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Answer: the image of how its supposed to be graphed is listed down below! hope this helped!

Step-by-step explanation:

The graph of a function f is the set of all points in the plane of the form (x, f(x)). We could also define the graph of f to be the graph of the equation y = f(x). So, the graph of a function if a special case of the graph of an equation.

plz help
An album sells for $14.00 through an online music service. If the album is 20% off, and sales tax is 8%, what is the total price of the album including tax?

Answers

Answer:

$12.10

Step-by-step explanation:

(.20) 14 = 11.20

.08(11.20)= ABOUT .90

ADD .90 to 11.20

to get the final cost with tax. ;)

What is 3 to the power of three halves equal to?

Answers

Square root of 27 is the answer

Answer:

[tex]3\sqrt{3}[/tex] or ≈5.196

Step-by-step explanation:

We can write the given information as an exponent:

[tex]3^{\frac{3}{2} }[/tex]

We know that the denominator represents the root, and the numerator represents the power. This gives us:

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If AQSR - AYXZ describes two triangles, which other statement is also true?

Answers

Answer:

RSQA ~ ZXYA

Step-by-step explanation:

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