Mathematics High School

Consider the figure shown below. How long is DE?

Consider The Figure Shown Below. How Long Is DE?

Answers

Answer 1

Answer:

c). [tex]2\sqrt{2}[/tex]

Step-by-step explanation:

It's a right triangle with equal sides (DE == EF).

We know that

[tex]4^2 = DE^2 + EF^2 = 2\cdot DE^2\\16 = 2\cdot DE^2\\8 = DE^2\\4\cdot2 = DE^2\\2\sqrt{2} = DE\textrm{; because }-2\sqrt{2} = DE\textrm{ doesn't make sense in geometry}[/tex]

Related Questions

[tex](2+7n- 4n^{2}) + (6-2n^{2}-6n)[/tex] what is this eqiuvilent to

Answers

Answer:

omg there's letters in math

Step-by-step explanation:

2n squared + n +8...I think this is the answer :)

Amy has 3 yards of fabric. She needs to cut the fabric into 6 equal pieces.
How many yards long should each piece of fabric be? *

Answers

Answer: that would 0.5 yards!

Step-by-step explanation:

It’s pretty simple since 3 is half of 6. All you would to do is divide one yard by two, which would get you 0.5 yards, i hope this helps. <3

Divide. Write the answer as a mixed number in simplest form.

4879 ÷ 200 =

Answers

24.395 hope this helps :)

Answer:

24 79/200

Step-by-step explanation:

solve:6g=2
11 5
those are fractions btw
what is g?​

Answers

G is apart of the equation

Help please!!!!!!!!!!!!!

Answers

Answer:

B

Step-by-step explanation:

.99n + 19.99

2 songs

.99(2) + 19.99

1.98 + 19.99 = 21.97

the diameter of a circle is 8 ft. Find the circumferenceto the nearest tenth.

Answers

Answer:

25.1 ft

Step-by-step explanation:

To solve for circumference is pretty simple. Just use the equation 2pi r (r=radius, radius is diameter divided by 2).

So essentially, apply to your calculator:

2(3.14)4=25.12

pretty simple! hope this helps!

which three sides best describe the triangle in the diagram?

Answers

The answer is A. 6cm 6cm and 8cm

Factor the expression using the GCF. Explain your reasoning using math
vocabulary.
24xy – 16y

Please help!

Answers

Answer:

8y(3x - 2)

Step-by-step explanation:

8y is the GCF so I divided it out and set it outside the parenthesis.

Somebody please help me! Question is due in 11 minutes!

Answers

Answer:

Step-by-step explanation:

The expression 2(l + w) is used to calculate the perimeter of a rectangle, where l is length and w is width. If the length is Fraction 2 over 3 unit and the width is Fraction 1 over 3 unit, what is the perimeter of the rectangle in units? (3 points)

Answers

Answer:

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

2[2\3±1\3]

2×2\3=4\3

2×1\3=2\3

4\3±2\3=6\3

6\3 is the same as 2 because if you divide 6 by 2 you will get 2

so the answer is 2

A bakery can make 56 cheesecakes for every 8 blocks of cream cheese. Which table represents the relationship between the number of cheesecakes the bakery makes and the number of blocks of cream cheese the bakery uses?

Answers

the answer is d because it take 7 blocks of cream cheese to make 1 cheesecake.

Answer:

c

Step-by-step explanation:

I have done this on delta math too and it is C


6. When solving for the value of x in the equation, Martha wrote the following lines on the board.

Step 1 4(x - 1) + 3 = 18
Step 2 4(x - 1) = 15
Step 3 4x - 1 = 15
Step 4 4x = 16
Step 5 x = 4

Which property was used incorrectly when going from Step 2 to Step 3?

a. Addition Property of Equality
b. Distributive Property of Equality
c. Substitution Property of Equality
d. Transitive Property of Equality

Answers

Byvyvybybtbybybybybybybybybybybyb

Answer:

The distributive property is used incorrectly

Step-by-step explanation:

Step 2 should be: 4x-4=15

4x= 19

x=4 3/4 or 19/4

check work by substituting answer for x

4(19/4-1) + 3 = 18

19-4+3=18

18=18

I need help on this question:
Name two examples of the three-dimensional figure describe.
Two parallel, congruent sides
The second question (this is the same for number 1)
One base

Answers

Answer:

ehwrjhq

Step-by-step explanation:pwjhreijwhribhbhrtu4i3r3

The "middle" term of a trinomial form of (3x+1)(x-4) is:

Answers

Answer:

Expand the following expression

(3x+1)(x-4) = 3x^2-12x+x-4

middle term = -11x

HELP DUE IN 2 MINUTES

Answers

Answer:

6

Step-by-step explanation:

add them all together which will get you 24

then divide by the number of months

24/4=6

Solve for x.
2x-14y= -32
Please can someone help me !!!!

Answers

Answer:

x = 7y - 16

Step-by-step explanation:

First, isolate x by adding 14y to both sides:

2x - 14y = -32

2x = 14y - 32

Now, divide each side by 2:

x = 7y - 16

So, x = 7y - 16

Answer:

x=-16+7y

Step-by-step explanation:

2x-14y=-32move the varIables to the right and change its sign2x=-32+14ydivide both sides of the equation by 2x=-16+7y

I need help finding the slope!

Answers

Answer:

2

Step-by-step explanation:

rise/run

or change y/change x

so 4/2

please help with Fractions

Answers

Answer:

1/9 and 1/10 are smaller than 1/8 but the smallest is 1/10

Alexa, Clara, and Adrian are working on a project.
They want to know who types the fastest so that
person can type the report. The equation y = 32x
models the total number of words Alexa can type,
where y is the number of words typed and x is the
time in minutes. The table shows the relationship
between words typed and minutes for Clara. The
graph shows the relationship for Adrian. Who
tynes the fastest?
Who types the fastest?
O A. Clara types the fastest.
OB. Adrian types the fastest.
OC. Alexa types the fastest.
OD. They all type equally fast.

Answers

D they all type fast

Answer:

D: they all type equally fast

Step-by-step explanation:

Julie walks 10 dogs a week and gets paid $4.25 for each dog. How much money does
she make in one week?

Answers

Answer: 10 * 4.25=  $42.5 per week

Step-by-step explanation:

Answer:

4.25

Step-by-step explanation:

4.25x 10 1 =4.25

You toss two number cubes. If a sum of 7 or 11 comes up, you get 7 points, if not you lose 2 points.

The probabilities for each of the sums is:

P(2) = 1/36 P(3) = 1/18 P(4) = 1/12 P(5) = 1/9

P(6) = 5/36 P(7) = 1/6 P(8) = 5/36 P(9) = 1/9

P(10) = 1/12 P(11) = 1/18 P(12) = 1/36

The probability of a sum of 7 or 11 is:

1/36

Answers

Answer:

2/9

Step-by-step explanation:

The probability of a sum of 7 or 11 is the sum of each probability:

P(sum of 7 or 11) = P(7) + P(11) =                              1/6 + 1/18    =                              3/18 + 1/18  =                              4/18            =                              2/9

Answer:

the first part is 2 / 9

the second part is 0

i just did the assignment on edge and got those right

Please tell me the area

Answers

Answer:

200 ft²

Step-by-step explanation:

area = 1/2(BH) = 1/2(20)(20) = 200 ft²

A volleyball team played five games. In those games, the team won by 7 points, lost by 3, lost by 2, won by 4, and won by 9. What was the total amount of points from all five games

Answers

Answer:

The answer is "3"

Step-by-step explanation:

In essence, it represents the sum of all comments divided by the number of responses.

It implies scoring in the five games corresponds to a total of five results.

Scores :

7 points implies+ 7 

lost by 3 implies- 3 

lost by 2 implies - 2

won by 4 implies + 4 

won by 9 implies + 9 

Sum of all scores [tex]= 7 - 3 - 2 + 4 + 9 = 15[/tex]therefore

Its team has a total of 5 games[tex]= 5[/tex]

Measurement in scores in five games thus = sum of all scores/sum with the team played games [tex]=\frac{15}{5}= 3[/tex]

Evaluate 9 ÷ 3[(18 − 10) − 22].

Answers

Answer:

-42

Step-by-step explanation:

Tim has some marbles.
Sue has twice as many marbles as Tim.
Jim has 15 marbles.
Tim, Sue and Jim have the a total of 63 marbles.
How many marbles does Tim have?​

Answers

Let x = the number of marbles Tim has
Let 2x = the number of marbles Sue has
x + 2x + 15 = 63
3x = 48
x = 16 marbles

Can someone help me pls

Answers

Answer:

x ≈ 16.6 units

Step-by-step explanation:

The angle between a tangent and the radius at the point of contact is 90° , so

Δ ABC is a right triangle at ∠ B

Using Pythagoras' identity in the right triangle

x² + 7² = 18²

x² + 49 = 324 ( subtract 49 from both sides )

x² = 275 ( take the square root of both sides )

x = [tex]\sqrt{275}[/tex] ≈ 16.6 ( to the nearest tenth )

Help please
There are two consecutive even integers. The square of the larger one is three hundred eight more than the smaller one. Which of the following equations could you use to find the smaller integer?
A. (x + 2)2 - 308 = x
B. (x + 2)2 + 308 = x
C. (x + 1)2 + 308 = x
D. (x + 1)2 = x - 308
E. (x + 1)2 - 308 = x
F. (x + 2)2= x - 308

Answers

Answer:

A.( The option a is correct

Please help my grades are due in a few and this is my last question but I don't understand it...

Answers

The answer is 13 your welcome

a model house has a scale of 1 cm to 3 meters.If the model house 5cm,then how is tall is the house.

Answers

Answer:

15m

Step-by-step explanation:

1cm=3m

5cm is equal to 15m

I will give you brainliest! Please help me

Answers

Answer:

A) 7x^5 + 2x^2 + 6

Step-by-step explanation:

I hope this helps.

Answer:

The answer is A

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