Mathematics Middle School

What is the measure of ∠CEF?

A. 80 degrees
B. 90 degrees
C. 100 degrees
D. 110 degrees

What Is The Measure Of CEF?A. 80 DegreesB. 90 DegreesC. 100 DegreesD. 110 Degrees

Answers

Answer 1

Answer:

D. 110

Step-by-step explanation:

30+40=70

180-70=110

Answer 2

Answer:

∠CEF = 110°

Step-by-step explanation:

ΔBED ,

∠BED +  ∠BDE + ∠DBE = 180 {Angle sum property}

∠BED + 40 + 30 = 180

∠BED + 70 = 180

∠BED = 180 -70

∠BED = 110°

∠CEF = ∠BED     {Vertically opposite angles}

∠CEF = 110°

Related Questions

3. Write the following as an algebraic expression: Twice the cube of z .4. Write the following as an algebraic expression: The quotient of the sum of x plus 4 and 2

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Answer:

im pretty sure its Z^3 & x+4/2

Step-by-step explanation:

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Answer 8ft = 96inches
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Answer:

1. C

2. B

3. D

5. C

6. B

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Step-by-step explanation:

it costs 15 for one surfing lesson and 25 per day to rent a surf board write an expression for the total cost of one lesson and renting a surf board for y days

Answers

Answer:

15+25y= total cost

Step-by-step explanation:

this is easy

Answer:

25y + 15 = x

Step-by-step explanation:

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Answer:

20.25

Step-by-step explanation:

If you add them in way then that’s the answer

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The last question!

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(5+10)+(6+8) i don't understand the question
3 weeks bc that is the point on the line

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Answers

Answer:

where is the question

Step-by-step explanation:

2s+10-7s-8+3s-7
syplifying expression fyi​

Answers

Answer:

-1+5z, -25+20y, 4d+14, 2n-2, 40k+8, 8b+5, -9+22p

Step-by-step explanation:

1) -4+7z+3-2z

-1+5z

2) 15+4(5y-10)

15+20y-40

-25+20y

3) 2d+17-3-2d+4d

4d+14

4) 12n-8-2n+10-4

2n-2

5) 8(2k+1+3k)

16k+8+24k

40k+8

5) 4(2b+2)-3

8b+8-3

8b+5

6) -4+8p-6p-5+20p

-9+22p

A sequence of transformations was applied to an equilateral triangle in a coordinate plane.
The transformations used were rotations, reflections, and translations. Which statement about
the resulting figure is true?
A. It must be an equilateral triangle with the same side lengths as the original.
B. It must be an equilateral triangle, but the side lengths may differ from the original
triangle.
C. It may be a scalene triangle, and all the side lengths may differ from the original triangle.
D. It may be an obtuse triangle with at least one side the same length as the original triangle.

Answers

Answer:

A It must be an equilateral triangle with the same side lengths as the original triangle.

HEEEEEELLLPPPP, I'LL MARK YOU THE BRAINLIEST IF YOU GET THE ANSWER RIGHT

Answers

The answer is 9.06x10^12 or 9,060,000,000,000

The radius of a circular musical drum is 70 centimeters.
Find its area.
Use 7 = - 3.14

Answers

Answer:

I got 219.8 as my answer, hope this helps!

(-2/3) -15.6 + (1/4 x -15.6)
negative two thirds times negative fifteen and six tenths plus one fourth times negative fifteen and six tenths. please help me.

Answers

Answer:

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Multiplying positive and negative fractions (video)

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Video result for (-2/3) -15.6 + (1/4 x -15.6) negative two thirds times negative fifteen and six tenths plus one fourth times negative fifteen and six tenths. please help me.4:11

Dividing negative fractions (video)

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Video result for (-2/3) -15.6 + (1/4 x -15.6) negative two thirds times negative fifteen and six tenths plus one fourth times negative fifteen and six tenths. please help me.5:01

Subtracting fractions with unlike denominators (video)

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Adding fractions with different signs (video)

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Feedback

Step-by-step explanation:

Answer:

Step-by-step explanation:

[tex]\frac{-2}{3}-15.6+\frac{1}{4}x-15.6 = \frac{-2}{3}- 15.6 - 15.6 + \frac{1}{4}x\\\\ = \frac{-2}{3} - 31.2+\frac{1}{4}x\\\\= \frac{-2}{3}-\frac{31.2*3}{1*3}+\frac{1}{4}x\\\\= \frac{-2}{3}-\frac{93.6}{3}+\frac{1}{4}x\\\\= \frac{-95.6}{3}+\frac{1}{4}x[/tex]

△ PQR is rotated by 180° in a counterclockwise direction about the origin to obtain △ P′Q′R′. What are the coordinates of △ P′Q′R′?

Answers

Answer:

it is A

Step-by-step explanation:

the answer is B because it would end up in the 4th quadrant and B has the coordinates of the figure in the fourth quadrant.

Clare bought a bag of 84 sour candies. She ate s of the candies. Write an expression that shows how many sour candies Clare has now.

Type an asterisk ( * ) if you want to use a multiplication sign and a slash ( / ) if you want to use a division sign.

Answers

84-s= x

x- number of candies clare has left

The first angle in a quadrilateral is 150 degrees. The second angle in the quadrilateral is 30 degrees.
​The other two angles are congruent.

​What are the angle measurements, in degrees, of angle 3 and angle 4?

Answers

Answer:

angle three is 30 degrees (depending on what kind of quadrilateral it is)

angle four is 150 degrees

Step-by-step explanation:

150+30

180 and if the other two are congruent meaning equal too

than they must also be 180 degrees in totale on the other side as well.

Angle is 30 degrees

Rich is building a travel crate for his dog, Thomas, a beagle-mix who is about 28 inches long, 11 inches wide, and 24 inches tall.

For Thomas to travel safely, his crate needs to be a rectangular prism that is about 12 inches greater than his length and width, and 6 inches greater than his height.

What is the volume of the travel crate that Rich should build?'

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Answers

Answer:

27600

Step-by-step explanation:

28 long +12 -->40

11 wide +12 --->23

24 tall +6--->30

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A herd of dinosaurs made paintings in the sand with their claws.
Each baby dinosaur made 15 paintings and each adult dinosaur made 7 paintings. The entire herd made 208 paintings in total, and there were 3 times as many baby dinosaurs as adult dinosaurs.
How many baby dinosaurs and adult dinosaurs were there?

There were ____ baby dinosaurs and ____ adult dinosaurs.

Answers

7x+15(3x)=208
7x+45x=208
52x=208
x=4
adult=4
baby=12

Answer:

Baby dinosaurs-12

Adult dinosaurs-4

Explanation:

15b+7a=208 where b- baby , a is adult

b=3a

Putting the values

15.3a+7.a= 208

45a+7a =208

52a=208

a=4

b=3a= 12

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Answers

Answer:

A

Step-by-step explanation:

first I put 3 in for all the a's then I just completed the equation.

24/2-6x2 =0 sooooooo

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Answers

You multiple the area 18 x 12 = 96 sq ft

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Answers

Answer:

10. {5/8, 0.7, 0.755}

11. {-3.12, -3, 1 1/2}

12. {-2.98, -2 9/10, 2.88}

13. {4/5, 0.82, 5/6}

14. {-1 2/5, -1.20, -1.02}

15. {2 5/10, 2 3/5, 2.7}

10. {5/8, 0.7, 0.755}

11. {-3.12, -3, 1 1/2}

12. {-2.98, -2 9/10, 2.88}

13. {4/5, 0.82, 5/6}

14. {-1 2/5, -1.20, -1.02}

15. {2 5/10, 2 3/5, 2.7}

Answer:

Step-by-step explanation:

PLEASE ANSWER PWEASE

Answers

the answer is d i think. i’m not sure tho
Answer Varified and you know that what they say about it and how much you have done for church

please help mee on this question

Answers

Answer:

52 yards squared

Step-by-step explanation:

Split the two shapes into two rectangles. Area of first one is 3*4=12 yRDS SQUARED. second area is 10*4=40 yards squared. 40+12=52 yards sqared

20 points
To graph the point (4, -7) on the coordinate plane, start at the origin. Move 4 units _______ and 7 units ________ .
Answers
a
right.....down
b
left....down

Answers

the answer is a, right….down
The answer is “a” because 4 is positive and on the x axis so it moves right and -7 is negative and on the y axis so you move down

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Answers

Answer:

x is 23

Step-by-step explanation:

cause it is an 180 angle so 180-93=87

87 -18 =69

3x=69

x=23

Answer:

x=23

Step-by-step explanation:

in order to find x

(3x+18)° + 93°=180°

⇒3x+18=180-93

⇒3x=180-93-18

x=69/3

x=23

and there we go X = 23

hope it helps :)

have a great day!!

John plans to practice piano at least 2 1/2 hours this weekend.
If he practices 1 1/ 6 hours on Saturday and 1 1/4 hours on Sunday, will he meet his goal?

Answers

2 hours 30 minutes = goal

Saturday = 1 hour 10 minutes
Sunday = 1 hour 15minutes
Total = 2 hours 25 minutes

No he will not meet his goal. He will be short 5 minutes of practice.

The table shows a proportional relationship between the number of pounds of grapes
purchased and the total cost of the grapes.
A row of values is missing in the table.
Which number of pounds of grapes and total cost of the grapes could be used as the
missing values in the table?
Select each correct response.
Question 1 options:

Pounds of grapes: 2
Total cost: $1.38

Pounds of grapes: 3
Total cost: $2.53

Pounds of grapes: 6
Total cost: $3.68

Pounds of grapes: 8
Total cost: $5.52

Pounds of grapes: 11
Total cost: $8.97

Answers

Answer:

Pounds of grapes: 11

Total cost: $8.97

Step-by-step explanation:

Because when you look at the prices, the last answer (Pounds of grapes: 11

Total cost: $8.97)is the most correct because it is adding by 2 (2, 4, 6, 8) every time. Its not exactly 8 but its the closet number :)

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Answers

B :) working out in the photo

Which of the following is the product of a difference of squares?

Answers

Answer:

A

Step-by-step explanation:

A
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If 5 lemons cost $1.95 and the price of each lemon is the same, how much does each lemon cost?

Answers

Answer:

$0.25

Step-by-step explanation:

Your answer is going to be 39¢ each

$1.95 divided by 5
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