find the area of ABCD
trapezoid ABCD ~ trapezoid EFGH
trapezoid ABCD: 20cm
trapezoid EFGH: 5cm

area of EFGH = 40 sq cm

Find The Area Of ABCDtrapezoid ABCD ~ Trapezoid EFGH Trapezoid ABCD: 20cm Trapezoid EFGH: 5cm Area Of

Answers

Answer 1

Answer:

640 cm²

Step-by-step explanation:

The ratio of the area of 2 similar polygons = the ratio of the square of their corresponding lengths

Thus:

Area of Trapezoid ABCD to Area of Trapezoid EFGH = AB² to EF²

Area of Trapezoid ABCD = ? = x

Area of Trapezoid EFGH = 40 cm²

AB = 20 cm

EF = 5 cm

Substitute

x:40 = 20²:5²

x/40 = 400/25

x/40 = 16

Cross multiply

x = 16*40

x = 640

Area of trapezoid ABCD = 640 cm²


Related Questions

Anyone know how to do this pleaseee?

Answers

Answer:

It should be 384^2

Step-by-step explanation:

Answer:

384 unit^2

Step-by-step explanation:

SA = 2(lw + wh + hl)

     = 2(8x8 + 8x8 + 8x8)

     = 2(64 + 64 + 64)

     = 2(192)

     = 384

Hope it helps!

Which ordered pair is a solution to the system of inequalities?
у< 3х
y< 5
A. (1,3)
B. (9,4)
C. (4,10)
D. (-12,50)

Answers

Answer:

[see below]

Step-by-step explanation:

I used a graphing program to graph the given system. I also graphed the points given.

Options B's choice lies in the double shaded area, so it would be a solution to the system.

See the graph attached!

Hope this helps you!  

Write an equation for the line that passes through points (2, 0) and (4, 3).

Answers

The equation for these lines to pass through the points are; y= 3/2x -3

The angle measurements in the diagram are represented by the following expressions
ZA = 8r+6
B = 4.1 +38
Solve for x and then find the measure of B:
_B =

Answers

answer:

∠B = 70°

step-by-step explanation:

as you can see, the angle are alternate exterior anglestherefore, they are EQUALwe can set them equal to each and solve for x first

∠A = ∠B

8x + 6 = 4x + 38

4x + 6 = 38

4x = 32

x = 8

now, we will plug in x in the expression for B to find B

4(8) + 38

32 + 38

= 70

therefore, ∠B = 70° and x = 8

Marcus scored 100 points while playing 3 rounds of a game. Points Round 1 40 Round 2 20 Round 3 ? Total 100 How many points did he score in round 3? Fill in the blanks to solve the problem. let yra​

Answers

Answer:

40 points

Step-by-step explanation:

40 + 20 = 60

100 - 60 = 40

so round three equals 40 points

Answer:

60 points in round 3

Step-by-step explanation:

Since the total is 100, and they already got 40 points (from round 1 and 2) then just subtract them from the total to find what you got in round 3.

lol can u help me.. JEJDJJSJSNS

Answers

Answer:

i belive the correct answer should be A .im not 100 precent sure its, either a or c

Step-by-step explanation:

What do you call a cow in a earthquake?

Answers

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!A Milkshake!!!!!

Answer:

a milkshake

Step-by-step explanation:

tha malk is shakin'

Please helpppppp!!!!!!!!

Answers

Answer:

Step-by-step explanation:

Use the graph to answer the following questions. image Activity 1 of 2 Part A: Is the relationship between the distance traveled and the time shown in the graph proportional? A. The relationship is proportional because the ratio of the variables is constant. B. The relationship is not proportional because the graph passes through the origin (0, 0). C. The relationship is proportional because the graph goes up by 5 every time. D. The relationship is not proportional because time increases by 2 and distance traveled increases by 5.

Answers

Ur mom 242424242424242424242434242

Line segment TU has endpoints (-7,10) and (-6,-5). What is the length of TU to the NEAREST TENTH?

Answers

Answer: 15 units

Step-by-step explanation:

Given

The endpoints of the line segment are [tex](-7,10)\ \text{and}\ (-6,-5)[/tex]

The length of the line segment is given by the distance formula i.e.  

[tex]d=\sqrt{\left( x_2-x_1\right)^2+\left( y_2-y_1\right)^2}[/tex]

Insert the values,

[tex]\Rightarrow d=\sqrt{\left( -6+7\right)^2+\left( -5-10\right)^2}\\\Rightarrow d=\sqrt{1^2+\left( -15\right)^2}\\\Rightarrow d=\sqrt{1+225}\\\Rightarrow d=15.0\ \text{units}[/tex]

Therefore, the length of line segment TU is 15 units

I DONT KNOW LOL PLS HELO AGAIN FOR MY TEST.. I am trying to score a good score but I understand nothing

Answers

Answer to #16 is 145 feet. uuuhhh that’s about as much as I can answer sorry :/

Please answer this to the best of your ability

Answers

Answer:

Step-by-step explanation:

I-- (3,-1)

K-- (-3,-5)

L-- (-3,-4)

J-- (2, -5)

Answer:

Angle I: (3,-1)

Angle J: (2,-4)

Angle K: (-2,-4)

Angle L: (-2,-3)

Step-by-step explanation:

I counted each unit down from each angle till I got to the x axis then counted down how many units it took to get from the angle to the line.

Please help me solve this math. It’s due soon

Answers

Answer:

the awnser would be a I'm pretty sure

Step-by-step explanation:

make the other side the same ones so like take the bottom 8 and duplicate it to the top. do the same thing with the 6 but put it on the left side. and then combine 12 + 18 and there you go.

The measure of an angle is 2.8.what is the measure of its complementary angle

Answers

Answer:

87.2º

Step-by-step explanation:

Complimentary angles total 90º

c + 2.8 = 90

c = 90 - 2.8

c = 87.2º

Answer:

87.2°

Step-by-step explanation:

When angles are complementary, it means that they both add up to 90°.

In this case, one of the angles measures 2.8°.

So, to find the other one, we subtract 2.8 from 90.

90 - 2.8 = 87.2

The measure of the complementary angle is 87.2°

I hope this helps! I would really appreciate it if you would please mark me brainliest! Have a blessed day!

Find the measure of the angles D, E, and F
HELP PLZ

Answers

Answer:

D) 122

E) 30

F) 28

Step-by-step explanation:

Angle D:

value of angle across is equal to angle D = 122

Angle E:

value of angle across is equal to angle E = 30

Angle F:

180 - 122-30

Answer:

D) 122

E) 30

F) 28

Step-by-step explanation:

convert 70/100 to a decimal

Answers

Answer: convert 70/100 to a decimal

70 divided by 100 is gonna give us 0.7

The Answer is gonna be 0.7

This is the right Answer :3

I hope you are having a great day :3

Explanation :

70/100

=7/10

=0.7

Answer:

0.7

Step-by-step explanation:

Given:

70/100

7/10

0.7

sum of two numbers be 95. if one exceeds the other by 15, find the number​

Answers

Sum of two number = 95

Let the first number be x, then another number be x + 15.

According to the question, x + x + 15 = 95

=>2x+15=95

=>2x+15-15=95-15

=>2x=80

=>x=40

Hence, the first number = 40

And another number = 40 + 15 = 55.

birdseed cost $1.25 per pound how much does 6 pounds of birdseed cost

Answers

answer: 7.5

explanation: 1.25 x 6 = 7.5

Answer:

7.5 for 6 pounds

Step-by-step explanation:

Which operation should be used to solve x + 3 = 7?
A) -3
B) x 3
C) + 3
D) ÷ 3

Answers

Answer:

÷3

Step-by-step explanation:

&$#*×&×$;$:$&;%%:#,¿×€$:%

Answer:

A

Step-by-step explanation:

when doing algebra like this, you need to isolate the variable using its reverse operation. For + its -.  For - its +. For * its /. For / its *.

CAN SOMEONE JUST CHECK MY ANSWER?

Answers

Answer:

you are absolutely correct .........

I don't see how to do this...............................

Answers

Step-by-step explanation:

So visually youre given the function

for h(-4) it can also be written as h(-4) = y

what do you get for y when you substitute - 4 for x?

All you have to do is trace the line until you get to x=-4 and then find the y that corresponds to it (looks like around y= - 1)

for the other one h(x) = - 5

what do you get for x when you substitute - 5 for y?

what you do is similar, trace the line along the y-axis and see what x-value you get for y =-5

Answer:

3 and x = 0

Step-by-step explanation:

To find the value of h(- 4)

Locate x = - 4 on the x- axis, go vertically up to meet the graph at (- 4, 3 )

Then the value of h(- 4) = 3

For h(x) = - 5

Locate y = - 5 on the y- axis. This is the point (0, - 5)

then the value of x for which h(x) = - 5 is x = 0

What is the volume of a
cube that has one side of ||
cm?

Answers

Answer:

5

Step-by-step explanation:

633 yess sjs this is rhe im doing this for points

Answer: V=a3

Step-by-step explanation:

i need help with 4ourth grade math lesson 8 homework helper asap math

Answers

Answer:

sure

Step-by-step explanation:

Plzzzzz helppppppp teachersssss

Answers

Answer:

1. tan(x) = 9/20

arctan(9/20) ≈ 24.23°

2. cos(x) = 17/32

arccos(17/32) ≈ 57.91°

3. tan(x) = 13/18

arctan ≈ 35.84°

4. sin(x) = 21/28

arcsin(21/28) ≈ 48.59°

Answer:

1    x = 24.2°

2    x = 57.9°

Step-by-step explanation:

You must memorize the definitions of the trig functions and then these problems are easy

1:   tan = opposite side/adjacent side

opp side to x is 9 and adjacent side is 20

So, tan x = 9/20

x = arctan (9/20) = 24.2°

2:   cos = adjacent side/hypotenuse

adjacent side = 17 and hypotenuse = 32

cos x = 17/32

x = arccos (17/32)

x = 57.9°

You do 3 and 4.  Hint:  Use the tan function in 3 and the sine function in 4

OK?   You can do it!!!!

Use the distributive property to simplify and type your final answer.

`4 ( x-8)=

Answers

Answer
4x-32

Explanation
4(x-8)

Multiply the parentheses by 4
4x-4•8

Multiply the numbers
4x-32

A track is 400 yards around how many full laps does tyler need to run if he wants to run atleast 2 milies

Answers

Answer:

17.6 laps

Step-by-step explanation:

Total distance to be covered = 2 miles

distance coved in each lap = 400 yards

We know that 1 mile = 1760 yards

therefore, 4 miles will make = 4×1760

= 7040 yards.

Number of laps to be taken

= Total distance to be covered ÷ distance coved in each lap

= 7040/400 = 17.6 laps

Therefore, it would take 17.6 laps to cover a distance of 4 miles if lap were 400 yards.

3x^2+3x^2=42
xy=-15
Find the value of (x-y)^2

Answers

Answer:

wrong question

Step-by-step explanation:

[tex]wrong question[/tex]

The ages of trees in a forest are normally distributed with a mean of 25 years and a standard deviation of 5 years.

Answers

Complete question is in comment section :

Answer:

68%

Step-by-step explanation:

Mean = 25

Standard deviation = 5

The percentage of trees between 20 and 30

20 trees = 1 standard deviation below the mean ; mean - 1(standard deviation)

25 - 5 = 20

30 trees = 1 standard deviation above the mean ;

Mean + 1(standard deviation) ;

25 + 5 = 30

This means, 20 and 30 lies ±1 standard deviation from the mean which according to the empirical rule is 68%

According to the empirical rule :

447.593 + (9.247 x 66.6) + (3.098 x 161) - (4.330 x 14)​

Answers

Answer:

1501.6

Step-by-step explanation:

_____z_______________

Answer:

447.593+1054.0082x

Step-by-step explanation:

Hope this helps.

The sum of a number and two is equal to negative seven. Translate this sentence to an equation and then find the number.

Answers

Answer: -9

Step-by-step explanation:

Given

The sum of a number and two is equal to negative 7

Suppose x is that number

[tex]\therefore x+2=-7\\\text{add -2 both sides}\\\Rightarrow x+2-2=-7-2\\\Rightarrow x=-9[/tex]

So, the number is [tex]-9[/tex].

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