Trapezoid ABFE is similar to trapezoid EFCD. What is the length of DC?

Trapezoid ABFE Is Similar To Trapezoid EFCD. What Is The Length Of DC?

Answers

Answer 1

Answer:

6.75

Step-by-step explanation:

Find the relationship between the trapezoids. You can see that the top of trapezoid ABFE is 3 units and the top of EFCD is 4.5 units. 3 * 1.5 = 4.5, so t the sides of trapezoid EFCD are 1.5 times more than the sides of ABFE.

Now, you know the bottom of ABFE is 4.5, so the bottom of EFCD is 1.5 times longer because they are proportional, so you can do 4.5 * 1.5 = 6.75 units.


Related Questions

I'm getting different answers to this question and I'm so confused-

True or False: The sum of two whole numbers is always larger than either whole number.

Answers

False if 0 is a whole number
True i think i’m not sure though, because:
1 + 1 = 2 which is greater
5 + 2 = 7 which is greater and so on

How much will Jason earn, if he invests $8,000 at 7.5% interest rate for 18 months? How much will be in the account at the end of the 18 months?

Answers

Answer:

$8,900

Step-by-step explanation:

You don't say anything about compounding. If this problem involves only simple interest, then the interest will be i = p*r*t and the account balance will be i + p.

Here i = $8,000*0.075*1.5 (representing 18 months)

         i + $900

At the end of 18 months there will be $8,000 + $900, or $8,900, in the account.

Answer:

$8,900

Step-by-step explanation:

Identify the slope and y-intercept of the graph of the equation.

y = 2


slope: 1; y-intercept:2


slope: 2; y-intercept: 2


slope: undefined; y-intercept: none


slope: 0; y-intercept: 2

Answers

Answer:

last one because theres no slope just a y intercept

Answer: slope 0; y intercept: 2

A scale measures a 1,000 gram weight as 945 grams. What is the percent error?

Answers

Answer:

5.5%

Step-by-step explanation:

The difference, or error, is 55 grams. The absolute value of (1000-945)/1000 is easily 0.055. Convert that into a percent and you'll get 5.5% as your error.

Answer:

5.820

step by step explanation

I need questions 12-30 evens on pg 375 and 356!!!!
Explain answers pls

http://assets.pearsonschoolapps.com/asset_mgr/current/201249/ny_ph_hsm2012_te_ch6.pdf

Answers

Answer:

I know you have a problem

Which fractions have a LCD of 30?
A.3/4 1/7 1/6

B.2/3 1/5 1/15

C. 2/15 1/5 1/15

D.2/3 1/5 1/15

Answers

Answer:

none of them.

Step-by-step explanation:

A. 7 and 4 can not go into 30

B & D are the same choice and LCD is 15

C. LCD is 15

I would say C 2/15 1/5 1/15

Car leases generally allow only a certain number of miles to be driven. Myung’s lease included a charge of 25 cents per mile for all miles above 12,000 per year. If Myung had a 3-year lease and was charged $1,640 at the end of the lease, how many miles had she driven during the 3 years?

Answers

Answer:

197

Step-by-step explanation:

Divide 1640 by 25

1640/25=65

Then multiply 65 and 3

65x3=197

6560 if you divide 25 into that you get the answer

Identify the letter C that would make the trinomial factor able using perfect squares please show your work 26and 28 only

Answers

Answer:

I gotxhu

Use the formula ---------->>>

b ^2

---

2

in order to create a new term in order to find the perfect square trinomial

= 144

I'LL GIVE BRAINLIEST

Answers

Answer:

B. Square

Step-by-step explanation:

Cross-section means the shape in the middle of the main given shape. Which is a square shape in this case. A square has four sides and each side is 90 degrees.

Samuel has a collection of 56 marbles. In the​ collection, 25​% of the marbles are red and the rest are blue. Which statement accurately describes Samuel​'s marble​ collection? 39 marbles are red and 17 marbles are blue. 14 marbles are red and 42 marbles are blue. 42 marbles are red and 14 marbles are blue. 17 marbles are red and 39 marbles are blue.

Answers

14 marbles are red and 42 marbles are blue.

Step by Step Explanation:
56/4=14
14=25%

56-14=42

help? thanks :D have a good day

Answers

Answer:

option a

Step-by-step explanation:

as 145 +10 = 155°

and total angle measure of triangle is 180

so

180-155 = 25°

in option a one angle is 10

other is 25 so obviously last angle will be 145

and same is in the triangle abc

one angle is 10 other is 145 and last is 25

both hve same measures thus are same triangles.

What is the total surface area of this rectangular pyramid?
A rectangular pyramid. The rectangular base has a length of 12 feet and width of 6 feet. 2 triangular sides have a base of 12 feet and height of 8 feet. 2 triangular sides have a base of 6 feet and height of 9.5 feet.
_____________ square feet
149
153
225
297

Answers

Answer:

225 square feet

Step-by-step explanation:

12 x 6 plus 2 x 12 x 4 plus 2 x 3 x 9.5

A ball’s height as a function of how long it spends in the air can be modeled by the equation h = -16t2 + 160t. Find the domain and range for this situation.

Answers

Answer:

Slope=0.014/2.000=0.007

the answer is 0.007 hope this is correct

PLEASE HELP ME ASAP WILL GIVE BRAINLIEST

Answers

It would take 3 months
3 months I I I I I I I. I I I I I I I I. I I I

If you answer it in a minute I will give you brainiest if it's right!!!
Consider these two triangles. Triangle A'B'C' is the dilated figure with a scale factor of 3.


Triangle A B C has side lengths 5 centimeters, 7 centimeters, 3 centimeters. Triangle A prime B prime C prime.


What can be concluded about the two triangles? Check all that apply.

1) The triangles are similar.

2) The corresponding sides are proportional.

3) The length of A'B' is 15.

4) The length of B'C' is 9.

5) The dilation is a reduction.

Answers

the answer would be 4 because i like the number 9

Answer:

1,2,4

Step-by-step explanation:

i did the warmup

Please help I’m confused math is hard!

Answers

Answer:

Step-by-step explanation:

basically, what they are asking you is to factor and then plug in the values (x=3; x=4) that they gave you.

first, you need to factor out the equation.

start with the original equation.

V=4x^3+10x^2+4x

factored form:

V= 2x(2x^2+5x+2)

next, you're going to want to plug in the values.

the answer asks for x=4, but you should do both.

v=2(3)(2(3)^2+5(3)+2)

do not forget to do the exponents before!

v=6(18+15+2)

v=6(35)

v=210 ft^2

that's the answer for if x was equal to 3.

V= 2x(2x^2+5x+2)

don't forget to write the original equation first.

V=2(4)(2(4)^2+5(4)+2)

V=8(36+20+2)

V=464 ft^2  

⬆is your answer! hope this helped!!

4 times what equals 3/4

Answers

Answer:

Is there supposed to be a fraction on the 4??

Step-by-step explanation:

Answer:

0.19

Step-by-step explanation:

0.19= 0.76 witch is the closest you will get to 0.75 aka 3//4

3.6% as a fraction in simplest form

Answers

Answer:

18/5 or 3 3/5

Step-by-step explanation:

The fraction is 9/250.

3.6% as a fraction

We write it as,

= 3.6/100

Remove point from 3.6 by dividing by 10,

= 36/1000

= 9/250

Hence,  The fraction is 9/250.

Learn more about the fraction here https://brainly.com/question/1376518

#SPJ2

Translate the figure below T(-2, 4) and name the coordinates of the new shape:
es003-1.jp

Answers

Answer:

(-3,5) (-6,5) (-3,9) (-6,9)

Step-by-step explanation:

hope this helps

Help is needed please and thank you

Answers

A, because 6+4 = 10 and 5 x 10 is 50 and 50 is greater than 32
the answer is 6 it’s the maximum number

I NEED HELP ON THIS QUESTION PLS.

Answers

Answer: F
Explanation: you already know you have a 90° and the straight lines means it’s 180° so you need to find x and z which are the same so 2x + 90=180 which you would then subtract 90 from 180 which would be 90 then divide 90 by two which would be 45

Can anybody help me with this I'm really struggling

Answers

Answer: 1296

Step-by-step explanation:

Multiply 6 four times, so it it'll be 6x6x6x6 which equals 1297

WILL GIVE BRAINLIST!!

mean absolute deviation 78, 45, 60, 33, 84
its number 2!

Answers

Answer: Mean Absolute Deviation Calculator

Instructions

This calculator computes the mean absolute deviation from a data set:

You do not need to specify whether the data is for an entire population or from a sample. Just type or paste all observed values in the box above. Values must be numeric and may be separated by commas, spaces or new-line. Press the "Submit Data" button to perform the computation. To clear the calculator, press "Reset".

What is the mean absolute deviation

The mean deviation is a measure of dispersion, A measure of by how much the values in the data set are likely to differ from their mean. The absolute value is used to avoid deviations with opposite signs cancelling each other out.

Mean absolute deviation formula

This calculator uses the following formula for calculating the mean absolute deviation:

$ MAD =\frac{1}{n} \sum_{i=1}^n |x_i-\bar{x}|$

where n is the number of observed values, x-bar is the mean of the observed values and xi are the individual values.

Mean absolute deviation calculator gives u answers:)

What is the side length of the square shown Below. Please SHOW your work.

Answers

Answer:

side length = (x+11)

Step-by-step explanation:

area = x^2+22x+121

side length = sq rt (x^2+22x+121)

side length = (x+11)

Answer is (X+11) I believe

If recycling 2,500 pounds of paper saves 20 trees, how many trees are saved when 4,000 pounds of paper are recycled?

Answers

Answer:

This is a ratio question. Set 16/2000 = x/5000 and solve for x. = 40 trees

Step-by-step explanation:

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

The N is Odd

Step-by-step explanation:

HOPE THIS HELPS!!!!!!

Select the TWO multiplication equations that could represent the following question: how many 3/8s are in 5/4

A. ? x 3/8 = 5/4
B. 3/8 x ? = 5/4
C. ? x 5/4 = 3/8
D. 3/8 x 5/4 = ?

Answers

Answer:

3

Step-by-step explanation:

it would be 3/8 and 10/8... 3 can only go into 10, 3 times.

D I think but I am not sure

!!Giving 15 points and will give brainliest!!Use the second list of random numbers to again calculate the experimental probability of a group having at least three girls. The results using the second list are
10%
the results using the first list.

Answers

Answer:

39% chance for only boys, 61% chance for only girls for the first two questions

the second is a bit trickier,you need a ratio for finding how many would be in 224 groups.

100:224 = 61:x, or 61/100 = x/224

Cross multiply; 100x=13664

Then, divide by 100; x=136.64, or about 137 groups would contain all girls

Step-by-step explanation:

Answer:

39% 61%

Step-by-step explanation:

Please help me! The questions are below! Thanks.

Answers

It’s d I’m pretty sure

Answer:

I think it would be B

Step-by-step explanation:

because it has to be exact and the height can be the same so it has to be 1.4 more so yeah

I'LL GIVE BRAINLIEST:

Answers

Answer:

120 square cm

Step-by-step explanation:

Just times 40 by 3 and that would look like 1:3 (because 40 is the one value)

40:120

1:3

Answer:

c

Step-by-step explanation:

40*3 = 120

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