1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Helga [31]
3 years ago
14

Which best proves why the expressions 4(x+3)+2x and 6(x+2 must be equivalent expressions

Mathematics
1 answer:
ahrayia [7]3 years ago
5 0

Answer:

6x + 12 = 6x + 12

Explanation:

4(x + 3) + 2x

4x + 12 + 2x    Distribute 4.

6x + 12            Combine the like terms.

6(x + 2)          

6x + 12            Distribute 6

You might be interested in
Riangle XYZ was dilated by a scale factor of 2 to create triangle ACB and sin ∠X = 5 over 5 and 59 hundredths.
DochEvi [55]

Answer:

Step-by-step explanation:

1. Part A: We know parts of our triangle since the cosine of X is given.  XY = 2.5 and XZ = 5.59 and since it is a scale factor of 2, ABC is most likely similar to XYZ by angle measures and the special relationship is, that they are all equal, because with a scale factor of two, all the ratios in triangle ABC will simplify to the ratios of triangle XYZ. 

Part B: Because triangle XYZ was dilated with a scale factor of 2 to create triangle ABC, just multiply the sides by 2 to get the sides AC and CB, which is AB = 2 times XY and CB = 2 times XZ. 

2. We can first find the hypothenuse by adding squaring 8 and 6 to have 100. Then square root it to have 10 as our hypothenuse

Now we can use sin x = 6/10 and cos y = 6/10

3. Since this is using the angle of elevation, we can say that the length of side AB is perpendicular from the perspective of angle of elevation, and the hypotenuse's length is known, so in this case, we can use a sine or cosecant ratio. 

Sin(40 Degrees) = AB/100

AB = 100 x sin(40 Degrees) ft

AB ~ 64.28 ft which can be rounded to 64 ft

The triangle I drew was a right triangle with points A, B, and C. 40 is on point C while 100 ft was on the hypotenuse. The kite was near A and the ground was between segment B and C.

4. Since the angle and Adjacent line is given and it is asking us to find H which is the opposite, we well try and be using Tangent = opposite/adjacent 

500 ft Multiply by tan39 = 405 (Estimated after rounding to nearest hundreth 404.892).

To be honest, I didn't know so much about these questions but this might give a better understanding and if I'm wrong then I apologize.

7 0
2 years ago
DO IN 30 MINUTES <br> Pls help :(
Zina [86]
If you can’t answer all of them on time I recommend you to take a picture then write down the work that way you can say to the teacher these are the answers for the ones I left blank
6 0
2 years ago
What is the square root of 18 rounded to the nearest tenth
ratelena [41]

Answer: 4.2

Step-by-step explanation:

when you square root 18 you get 4.242. When rounded to the nearest tenth you get 4.2 since 4 is not nor is 5 and exceeds it.

8 0
3 years ago
Read 2 more answers
A square pyramid has base edge length 14 m. The height of the pyramid is 24 m. Find the surface area of the square pyramid. Use
kotegsom [21]

Answer:

The total surface area is 896 m^{2}

Step-by-step explanation:

<em>The square pyramid is a solid with square base and symmetric 4 triangular faces.</em>

Given that the square base is 14 m and height is 24 m.

The apex of pyramid, center of square and center of any edge of square make a right angled triangle.

Let that height if triangular face be "x".

by pythagoras theorm , x^{2} = 7^{2} + 24^{2} = 625

x = 25 m

the area of square base is 14^{2} = 196 m^{2}

the area of each triangular side is <em>(\frac{1}{2})(base)(height) = (\frac{1}{2})(14)(25) = 135 m^{2}</em>

such are 4 triangles, thus (4)(135) = 700 m^{2}

Thus the total surface area is 196 + 700 = 896 m^{2}

8 0
3 years ago
3(x+y)=2y-x in verbal form
xz_007 [3.2K]
Three times the result of a number plus a number equals two times a number minus a number.

or

Three times the result of a variable plus a variable equals two times a variable minus a variable.
4 0
3 years ago
Other questions:
  • Solve the system of equations
    7·1 answer
  • Chloe and Ann are working on a project that requires both drawing and writing. Chloe writes better than she draws, so she gives
    9·2 answers
  • On december 1, jonas jewelry wholesale center started with an inventory of 1,000 watches. shipments of 168, 231, and 411 were se
    5·1 answer
  • Simplify one and four sevenths
    14·2 answers
  • an umbrella at a shop was marked for $6. during a slae a discount of 10% was given. A further 8% discount was given to senior ci
    10·2 answers
  • Can you PLEASE help with problem 4. (IF YOU KNOW IT)
    15·1 answer
  • Draw the image of \triangle ABC△ABCtriangle, A, B, C under a translation by 555 units to the left.
    6·1 answer
  • Marquise has 200 meters of fencing to build a rectangular garden.
    11·2 answers
  • A glider flies 13 miles north from the airport and then 24 miles diagonally southeast. Approximately how far west does the glide
    10·1 answer
  • Which answer choice is it?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!