please help me Find DE.

Please Help Me Find DE.

Answers

Answer 1

Answer:

DE = 11

Step-by-step explanation:

DF = DF +EF

4x+2 = x+7 + 7

Combine like terms

4x+2 = x+14

Subtract x from each side

4x+2-x = x+14-x

3x+2 = 14

Subtract 2 from each side

3x+2-2 =14-2

3x=12

Divide by 3

3x/3 = 12/3

x = 4

DE = x+7 = 4+7 =11

Answer 2

Answer:

DE is 11

Step-by-step explanation:

[tex]DE = DF - EF \\ DE = (4x + 2) - 7 \\DE = 4x - 5 [/tex]

But for x:

[tex]4x + 2 = (x + 7) + 7 \\ 4x + 2 = x + 14 \\ 3x = 12 \\ x = 4[/tex]

Therefore:

[tex]DE = (4 \times 4) - 5 \\ = 16 - 5 \\ = 11[/tex]


Related Questions

Exercise 5
A bag of corn can feed 50 chickens for 12 days.
a) For how many days will the same bag feed 40 chickens?
b) How many bags of corn are needed to feed 20 chickens for 30 days?
2. Fifteen men build a wall in five days. How long will it take the following
number of men to build the wall?
al one man
b) 10 men
c) 20 men
3. A 3-year-old girl has six sisters. Her youngest sister is 4 years old.
a) How many sisters did she have when she was 1 year old?​

Answers

Answer:

Step-by-step explanation:

a) By proportion number of days = 12 * 50/40

= 15 days.

b) Finding the number of bags per day that 1 chicken needs:

50 chickens eat 1 bag in 12 days

so 50 chickens eat 1/12 of a bag in 1 day.

1 chicken eats 1/(12*50) of a bag in 1 day.

20 chickens for 30 days:

20 chickens eats 20(12*50) in 1 day

and in 30 days 20 eat 30*20 / (12*50)

= 1 bag.

2.

a) 5*15 = 75 days

b) (15/10) * 5 = 7 1/2 days.

c) (15/20) * 5 = 3 * 5 /4 = 3 3/4 days.

3. When she was 1 year old her youngest sister was 2 - she had the same number of sisters as when she was 3.

So the answer is 6.

Is {3,…} a defined set

Answers

Answer:

No it is not a collection of well defined and distinct objects

Hope this helps <3


What is the midpoint of PQ?

Answers

Answer:

I think it is (2,0)

Step-by-step explanation:

Because in it 2 lies in the mid of x either y

Answer: (2,0)

Explanation:
Midpoint = ((x1 + x2)/2, (y1 + y2)/2)
In this case:
((-4+8)/2, (6+(-6))/2)
= (2,0)

Hope this helps!



Bridgette bought 9 books about animals, 6 books about outer space, and 3 books about
trains. Each book cost $16. How much did Bridgette spend on the books?

Answers

Answer:

(9+6+3)×16=288

Step-by-step explanation:

add all the books and then multiple by the price of one book to get an answer

Look at this rectangular prism:
If the height is quadrupled, then which of the following statements about its volume will be true?

Answers

C. The new volume will be 4 times the old volume. For example, if you fill a glass a little way, then next to it you pour liquid in the glass four times as high, there will be 4 times as much liquid (volume) in the second glass.

Answer:

the new volume Will be 4 times the old volume

Step-by-step explanation:

I have put the photo 3

Katie brought 5/6 pounds of candy to a slumber party tori brought 1/3 pound of candy how much candy did the girls have altogether

Answers

Answer:

1 [tex]\frac{1}{6}[/tex] pounds of candy

Step-by-step explanation:

Add together the fractions by creating a common denominator of 6:

[tex]\frac{5}{6} + \frac{1}{3}[/tex]

[tex]\frac{5}{6} + \frac{2}{6}[/tex]

= [tex]\frac{7}{6}[/tex]

Simplify into a mixed fraction:

= 1 [tex]\frac{1}{6}[/tex]

So, the girls had 1 [tex]\frac{1}{6}[/tex] pounds of candy

PLS HELP ON THIS QUESTION I WILL MARK YOU AS BRAINLIEST IF YOU KNOW THE ANSWER!!
A teacher is selecting students to be team captains for a class game. Each student in the class has their name on a Popsicle stick. The teacher selects three Popsicle sticks and the names on these sticks are team captains. This is an example of a ______________.
A. random sample
B. convenience sample
C. self-selecting sample
D. systematic sample

Answers

Answer:

random

Step-by-step explanation:

each has a random, equal chance of being selected

Answer:

a

Step-by-step explanation:

Which function is the inverse of 6) = 2x+39
ASAP

Answers

Answer:

The inverse is 1/2x - 3/2

Step-by-step explanation:

y = 2x+3

To find the inverse, exchange x and y

x = 2y+3

Solve for y

x-3 =2y+3-3

x-3 = 2y

Divide by 2

1/2x - 3/2 = 2y/2

1/2x - 3/2 = y

The inverse is 1/2x - 3/2

4 Points
is
For the function y = 3x + 5
what is the output of the
function if the input is 10?

Answers

Answer:

[tex]35[/tex]

Step-by-step explanation:

One is given the following function ([tex]y=3x+5[/tex]). The given problem asks one to find the output of the function when the input is (10). Keep in mind, a general rule for dealing with functions is that, when present, the variable (x) represents the input. Whereas the variable (y) represents the output. Thus, if one were to substitute (10) in place of (x), and simplify: the result one would get is the output. Apply this idea to the given scenario:

[tex]y=3x+5[/tex]

[tex]y=3(10)+5[/tex]

[tex]y=30+5[/tex]

[tex]y=35[/tex]

How many ten-thousands are there in these numerals? (a) 10650 (b) 21540 (C) 36907 (d) 74215 (e) 99999​

Answers

Answer:

a

Step-by-step explanation:

10650

it is ten thousand

any way is this choosing or question. in my answer I answer as it is choosing. if it is question let me know in comment. I will answer again in comment

a) There are only one ten thousand.

b) There are only one two thousand.

c) There are only three ten thousand.

d) There are only seven ten thousand.

e) There are only nine ten thousand.

What is rounding off?

Rounding numbers refers to changing a number's digits such that it approximates a value. The provided number is more simply represented by this value. For instance, 700,000 rather than 698,869 could be used to express a town's population.

Given that;

Numbers are,

(a) 10650

(b) 21540

(C) 36907

(d) 74215

(e) 99999​

Now, Numbers of ten thousand are,

(a) 10650

= 10000 + 650

Hence, There are only one ten thousand.

(b) 21540

= 10000 + 10000 + 1540

Hence, There are only two ten thousand.

(C) 36907

= 10000 + 10000 + 10000 + 6907

Hence, There are only three ten thousand.

(d) 74215

= 10000 + 10000 + 10000 + 10000 + 10000 + 10000 + 10000 + 4215

Hence, There are only seven ten thousand.

(e) 99999​

= 10000 + 10000 + 10000 + 10000 + 10000 + 10000 + 10000 + 10000 + 10000 +9999

Hence, There are only nine ten thousand.

Learn more about the rounding number visit:

brainly.com/question/27207159

#SPJ2

I NEED HELP ASAP!!People that now the Answer help me please

Answers

XQ IS CONGRUENT TO XW

how to locate square root 100 on number line​

Answers

Answer:

10

Step-by-step explanation:

Answer:

Step-by-step explanation:

First we find the square root of 100(for this we use a calculator)

[tex]\sqrt{100\\}[/tex] = 10

The square root of 100 is 10.

Now locate 10 on a number line.

Find the surface area of solid given the net.
I WILL MARK YOU AS BRAINLIEST IF YOU ANSWER THIS QUESTION!!

Answers

Answer:

2296 unit^2

Step-by-step explanation:

The area is the sum of the  6 rectangles in the net.

= 38*10 + 38*16 + 38*10 + 38*16 + 10*16 + 10*16

= 380 + 608 + 380 + 608 + 160 + 160

= 2296.

Please help me solve this fast!

Answers

Answer:

base = 18.89

legs = 16.89

Step-by-step explanation:

x + x + 68 = 180

2x + 68 = 180

2x = 112

x = 56

The altitude = 14

Tan(56) = opposite / adjacent

adjacent = base

opposite = altitude

Tan(56) = opposite / base                Multiply both sides by the base

base * Tan(56) = opposite                Divide by Tan(56)

base = opposite / Tan(56)

base = 14/tan(56)

base = 9.443

The base is actually twice this length because the altitude lands on the midpoint of the opposite side and is perpendicular to the third side (base).

base = 18.886  

Legs are the hypotenuse formed by 1/2 the base and the attitude.

Sin(56) = opposite / hypotenuse

Sin(56) = altitude / hypotenuse

hypotenuse = altitude / Sin(56)

hypotenuse = 14 / sin(56)

hypotenuse = 16.887

Rounded

base = 18.89

legs = 16.89

(SAT Prep) Find the value of x

Answers

25°+x=45°+15°25°+x=60°x=60°-25°x=35°

I hope it will be helpful andplease mark this answer as brainlist

Answer:

55°

Step-by-step explanation:

It should be:

x - 25 = 45 - 15x = 30 + 25x = 55

calculate with reasons, the size of the unknown indicated angles

pls help !!​

Answers

Answer:

x+125+25=180 angles of triangle

x=180-150

x=30

find the transpose of matrics.
Q=[789]

Answers

Answer:

[7]

[8]

[9]

Step-by-step explanation:

according to your question

your answer is

[7]

[8]

[9]

you must be write this answer in one bracket

What would -4|5+-3| be

Answers

Answer:

-8

Step-by-step explanation:

What is the value of the expression below when z=4?
10z-3

Answers

Answer:

37

Step-by-step explanation:

10z - 3 = 10(4) - 3

=40-3

=37

Answer:

37

Step-by-step explanation:

10*4-3 (z=4)

40-3

37

Hope it helps you

Identify the glide reflection rule in the given figure.

Question 8 options:

Translation: (x,y) → (x – 5,y); Reflection across y-axis


Translation: (x,y) → (x,y – 5); Reflection across y-axis


Translation: (x,y) → (x,y + 5); Reflection across y-axis


Translation: (x,y) → (x,y + 5); Reflection across x-axis

Answers

Answer:

B

Step-by-step explanation:

The shape clearly is reflected across y axis and the x coordinates remain the same. We can see a change in the y coordinates and the shape has shifted 5 units down. Hence (x, y) -> (x, y-5) and then reflection across y axis is the answer

Answer:

B

Step-by-step explanation:

WHAT IS ANOTHER NAME FOR NATURAL NUMBERS?

PLs answer!

Answers

Answer:

Natural Numbers (N), is also called positive integers, counting numbers, or natural numbers.

✌✌✌✌

Answer:

Another name of natural number is called counting number.

what is
f(x)= (x-12)(x+1)
in standard form?

Answers

Answer:

x^2-11x-12

Step-by-step explanation:

I use the box method, which makes a 2x2 box. Then you arrange you numbers based on the equation (show in image)

Then you multiply it out and get the equation

F(x)= x^2+x-12x-12

Simplify your equation and you get

F(x)= x^2-11x-12

Find the value of x if 2x-1÷3 is greater than 1-3x÷4 by 1​

Answers

[tex]\\ \sf\longmapsto \dfrac{2x-1}{3}-\dfrac{1-3x}{4}=1[/tex]

[tex]\\ \sf\longmapsto \dfrac{4(2x-1)-3(1-3x)}{12}=1[/tex]

[tex]\\ \sf\longmapsto 8x-4-3+9x=12(1)[/tex]

[tex]\\ \sf\longmapsto 17x-7=12[/tex]

[tex]\\ \sf\longmapsto 17x=12+7[/tex]

[tex]\\ \sf\longmapsto 17x=19[/tex]

[tex]\\ \sf\longmapsto x=\dfrac{19}{17}[/tex]

2x-1/3+1=1-3x/4
5x-1/3=4
5x-1=12
5x=13
X=2.6

Make a list of professionals who routinely apply geometry in their work.

Answers

Doctors, Physicians, animators, designers, etc

Answer:

1. Architects

2. Civil Engineers

3. Astronomers

4. Game Developers

5. Animators

6. Interior Designers

7. Surveyors

8. Designers who use computer-aided design.

PLS HELP ON THIS QUESTION I WILL MARK YOU AS BRAINLIEST!!
Mary wants to get spray foam insulation in her attic space. Shown here is a diagram of her attic - is the spray foam costs $3.15 per cubic meter, how much will it cost Mary to get her whole attic done?

Answers

Answer:

v = (base x height x length)/2

(7 x 10 x 13)/2 = 455 x 3.15 = 1433.25$

hope that answers your question

Given:
.
• ON is tangent to Circle L at point N
ON= 6
• OQ = 3
O
6
N
3
Q
L
P
Find the length of PQ

Answers

Answer:

9

Step-by-step explanation:

By joining N to L, you will have a right angled triangle which is right angle at N. Then r^2+36=(3+x)^2. r=9/2. PQ=2r=9

Đặc tính nào sau đây KHÔNG PHẢI là đặc điểm của pháp luật:
a. Tính xã hội
b. Tính nhà nước
c. Tính giai cấp
d. Tính dân chủ

Answers

Please explain in english

Find the indicated side of the
right triangle.
45°
y
6
45
Х
y = [?] /

Answers

Answer:

hello dear...

see first of all there's a thm type thing

'' sides opposite to equal angles are equal ''

so here 45 degrees in both sides are equal which leads us that opposite sides are equal as well

so x = 6

now we got value of 2 sides, both are 6 and now applying pythogarus as it is right angle

6^2 + 6^2 = y^2

36+36 = y^2

72 = y^2

y = √72

y = √36*2

y = 6√2

brainliest plssss <33

whats a+17-29+17=43-7

Answers

Answer:

a = 31

Step-by-step explanation:

a+17-29+17=43-7

Combine like terms

a+5 = 36

Subtract 5 from each side

a+5-5 = 36-5

a = 31

Find the nth term of 4,8,14,22

Answers

Answer:

2n+2

Step-by-step explanation:

the common difference is 4,6,8

again the common difference of 4,6,8 is 2,2

hence its common difference is 2

now, nth term,=a+(n-1) *d

4+(n-1)*2

4+2n-2

2n+2

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