Mathematics High School

(In picture) “Explain how you know you know using proportional lengths”

Answers

Answer 1

9514 1404 393

Answer:

yes

Step-by-step explanation:

If GH║FE, then ∆DEF ~ ∆DHG.

In similar triangles, corresponding sides have the same ratios.

The ratios of corresponding sides are ...

DG/DF = DH/DE

DG/(DG + GF) = 18/(18+36)

(1/2GF)/((1/2GF +GF) = 1/3

(1/2)/(3/2) = 1/3

1/3 = 1/3

Corresponding sides are proportional. Angle D is congruent to itself, so ∆DEF ~ ∆DHG by the SAS similarity postulate. Angles DGH and DFE are therefore congruent and GH║FE.

Related Questions

2. In Ella's math class, there are 12 girls and 15 boys. Which of the following is the ratio of boys to girls in Ella's math class?
A 12/27
B 12/15
C15/12
D27/12

Answers

Answer:

C. 15/12

Step-by-step explanation:

15 boys and 12 girls

Answer:

Step-by-step explanation:

12/15

HELP QUICK PLEASEEEEEEE

Answers

the answer should be B

here is my question in a pic

Answers

Answer:

Step-by-step explanation:

because she said half of X so 1/2x and then +3 to that half

Answer:

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HELP FOR 20 POINTSSS

x =3 ; y=8.4

x = 3 ; y = 15

x = 6 ; y =7.5

x = 6; y =18

Answers

Answer:

The first one.

Step-by-step explanation:

solving for x:

5/2 = 7.5/x

cross multiply

2 ×7.5 =5x

x= 2×7.5/5

x= 3

solving for y:

values of the small triangle over the bigger triangle-

5/6 =7/y

cross multiply and solve for y

y= 8.4

therefore (x= 3; y= 8.4)

YOU ARE VERY WELCOME!

find the solution of given expression

[tex] \sqrt{365 \times 4 \times 365} [/tex]

Answers

Answer:

√{365×4×365}=√(365²×2²)=±(365×2)=±730

Answer:

[tex]\sqrt{365\cdot \:4\cdot \:365}=\sqrt{532900}[/tex]

[tex]=\sqrt{730^2}=730[/tex]

Which of the following choices is the definition for a "variable"? *

Answers

Answer:

a symbol, usually a letter, used to represent a number in mathematical expressions or sentences

Step-by-step explanation:

Hope it helps

Answer:

4) choice 2, "a symbol, usually ......."

5) choice 1, "one variable equals ...."

Step-by-step explanation:

a term is either a single number or variable, or the product of several numbers or variables.

YO SOMEBODY HELP PLS IM STUCK

Answers

Answer:

X is less than or equal to -3

Hope that answers your question

Muchii unui cub are lungimea de 16cm.Care este perimetrul unei freţe a cubului? va rog rapid dau coroana

Answers

Răspuns:

64 cm

Explicație pas cu pas:

Perimetrul fiecărei margini a unui cub:

4 * lungime laterală

Lungime laterală = 16cm

Prin urmare, perimetrul va fi:

4 * 16cm

= 64cm

[tex]3x-2y=222x+5y=2[/tex]

Answers

Hope this helps mark me as brainlist

regan's website had 7 links on each of 9 pages. how many links did she have on her website? i need equation and solution!!

Answers

Answer:

Step-by-step explanation:

all you need to do is 9*7

The measure of one angle is 130. Which statement is true regarding the 130 angle and angle 3?

Answers

Answer: The measure of one angle is 130°. Which statement is true regarding the 130° angle and angle 3? They are same-side interior angles, so angle 3 measures 50°. They are alternate interior angles, so angle 3 also measures 130°.

Step-by-step explanation:

answer:

the answer is b

the directions say, determine whether the triangles are similar by AA, SSS, SAS, or not similar if the triangles are similar write a valid similarity stating why (9, 10, 11, 12, 14, 15)

Answers

Answer:

9) ASA

10) SAS

11) SAS

12) SAS

13) not similar

14) AA

15) not similar

Step-by-step explanation:

Find the measure of the arc indicated. (Only type the number.) *

Answers

Answer:

61 degrees

Step-by-step explanation:

The answer is 61 degrees.

Divide £90 in the ratio 4:1

Answers

Answer:80:10

Step-by-step explanation:

1=20 4=80

The cost of chartering a bus for the great america trip was split evenly by the 20 students planning to go. The day before the trip, 10 more students decided to go. dividing the cost evenly among all 30 students brought the average cost down by $9.00 per person. What was the total cost of chartering the bus? Please answer me with an explanation

Answers

Answer:

20c= 30(c-9)

Step-by-step explanation:

The first step in solving a word problem is always to organize the information you have, and put it into equations to solve.

Let c be the cost per student originally.

The cost of the bus has not changed, so the cost/student * the number of students has not changed:

HELP i’m struggling pls

Answers

hmmmmmmmm is this math or ?

Work out the size of angle x.
105°
to

Answers

Answer:

105

Step-by-step explanation:

cuz it is corresponding angle

Please help what is I need it for school 4/5 + 3/7 x 2

Answers

the answer for it is 58/35

Answer:

[tex]\frac{58}{35}[/tex] is the answer.

Step-by-step explanation:

1) Use this rule: [tex]\frac{a}{b} * c = \frac{ac}{b}[/tex]

[tex]\frac{4}{5} + \frac{3*2}{7}[/tex]

2) Simplify 3 * 2 to 6.

[tex]\frac{4}{5} + \frac{6}{7}[/tex]

3) Simplify.

[tex]\frac{58}{35}[/tex]

Therefor, the answer is 58/35 and if you need it on decimal form it would be, 1.657143.

An amusement park sold an average of 280 tickets in 4 hours. If this rate continues, how many tickets will they sell in 7 hours? *

Answers

Answer:490 tickets in 7 hoursStep-by-step explanation:

280 tickets per 4 hours

We need to find out how many tickets they made per hour.

So: 280/40

=70 tickets

70 tickets per hour

We then need to find how many ticket they made in 7 hours.

So: 70 x 7

=490 tickets

Answer:

490

Divide 280 by 4 to get average of 70 tickets an hour.

Multiple 70 X 7= 490

Urrrrrrrrrrrrrrerrrrrr

Answers

3(-3) - 2(4) + 5
-9 - 8 + 5
-17 + 5
-12

Please help me with these please i give brainliest.

Answers

Answer:

the answer is x<4

and the line is an open circle line going to the left from positive 4 onward

Hannah buys ice cream and onions at the store

She pays a total of 35.16

She pays a total of 4.44 for the ice cream

She buys 6 bags of onions that each cost the same amount

Write and solve an equation which can be used to determine x, how much each bag of onions costs

Answers

Answer:

x=5.12

Step-by-step explanation:

35.16= 4.44+6x

30.72=6x

5.12=x

x=5.12

Hope this helps :)

PLEASE HELP QUIKLY THIS IS DUE TODAY I WILL GIVE U POINTS THE PICTURE TO THE PROBLEM IS BELOW!!!! Ms. Jackson wrote a question on the board. Then she collected student responses to the question and recorded them in a tally chart. What question could she have asked? Is there more than one possible response to the question? Explain

Answers

Answer:

Critical-thinking skills and knowledge of enviromental regulations, 71 A or -15/2

Step-by-step explanation:

A store owner has 7.41 lbs. of candy. If she puts the candy into 9 jars, how much candy will each jar contain with how much left over?

Answers

There would be about 0.82 lbs of candy in the jar.
Explanation: 7.41 divided by 9= .82333

Each jar will contain .82 lbs of candy. The left over remaining candy will be .03 lbs :)

What is the area of the shape ?

Answers

Answer:

the area is C. 39

Step-by-step explanation: If you split them into there own shapes and add them at the end.

2 x 6 = 12

3 x 5 = 15

3 x 4 = 12

12 + 12 = 24

24 + 15 = 39

hope this makes sense

Please help asap will mark brainliest if right #32 points!

Answers

1a.) -5.36

Franco is requesting a group of negative numbers, so in this case, -5.36 is negative and would fall under that category.

1b.) 4.6272727

Mai is requesting the group to have repeating decimals, in this case, 4.62727 would work.

ABC
A rectangular prism has a volume of 990 feet cubed, a width of 9 feet, and a height of 10 feet. What is the measure of the length of the
prism

Answers

I’m pretty sure the answer would be 11 because if 9×10xa(or whatever letter you use) equals 990 then a=11. Hope this helps!

Please help

what is 2 x 1 1/2

Answers

Answer:

Step-by-step explanation:

2 times 1 is 2 and then multiply 1/2 by 2 and you'll get 1 then add those two numbers together and you will get 3. Note: The best way to do these types of things in multiplication is to split the numbers up among the decimal places so if you did 15 times 4 then an easy way to do it would be to split the 15 with 10 and 5 so then multiply the 10 by 4 and you get 40 now do the same to the 5 and you get 20 so now add those two numbers together and you get 60(This has nothing to do with the answer i just want to help make it easier for future problems such as this).

Answer:

Step-by-step explanation:

[Given]

2 * [tex]1\frac{1}{2}[/tex]

[Make improper fractions and solve by multiplying across]

[tex]\frac{2}{1}*\frac{3}{2} =\frac{6}{2}=3[/tex]

Have a nice day!

I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

help me out, please. Thank you!

Answers

Answer:

a: 5

b: (0, -2)

c: 3

d: (0, 11)

Step-by-step explanation:

Hope this helps!

( –2x – 14x2) – ( 10x – 2) + 2(10x3 – 3)

Answers

Answer:130

Step-by-step explanation:\

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