3 years ago

How to find the length of line BD

Mathematics

2 answers:

Artemon [7]3 years ago

6 0

The answer would probably be D because you don't know what x is.

EastWind [94]3 years ago

6 0

I am sorry what grade u in cuz I am in 8th grade wished I could help

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Solve for X Explain if possible :)

sweet-ann [11.9K]

The two labeled angles are alternate interior angles, and as such, they are the same.

From this result you can build the equation

$15x-2 = 13x+2$

and solve it for x: subtract 13x from both sides to get

$2x-2=2$

and add 2 to both sides to get

$2x = 4 \implies x = 2$

Check: if we plug the value we found we have

$13\cdot 2 + 2 = 26+2 = 28 = 15\cdot 2 - 2 = 30-2$

So the angles are actually the same, as requested.

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3 years ago

Write 6 : 9 :: 2 : 3 as a fraction proportion.

Firdavs [7]

6/9 (2/3) and 2/3. Hope this helps you.

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3 years ago

What is the total number of possible 4-letter arrangements of the letters m-a-t-h if each letter is used exactly once in each ar

MariettaO [177]

9514 1404 393

Answer:

Step-by-step explanation:

The number of permutations of 4 items is 4! = 24.

math, maht, mtah, mtha, mhat, mhta,

amth, amht, atmh, athm, ahmt, ahtm,

tmah, tmha, tamh, tahm, thma, tham,

hmat, hmta, hamt, hatm, htma, htam

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3 years ago

Find the product of 9x(-3x²y-7xz)

kogti [31]

Answer:

$- 27 {x}^{3} y - 63 {x}^{2} z$

Step-by-step explanation:

$9x( - 3 {x}^{2} y - 7xz)$

$= 9x \times ( - 3 {x}^{2} y) + 9x \times ( - 7xz)$

$= - 27 {x}^{3} y - 63 {x}^{2} z$

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3 years ago

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