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3 years ago

Determine whether the LCM for all pairs of odd numbers is sometimes, always, or never their product. Explain.

1 answer:

7 0

The lcm of all pairs of odd numbers is sometimes their product. Some examples:
3 and 9, the lcm is 9 not their product
3 and 11, the lcm is 33 their product
and so forth

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X^2-4x+3 factorize into its factors and give me answer I will giv u anda burger

Ghella [55]

Answer:

(x - 3)(x - 1)

Step-by-step explanation:

Consider the factors of the constant term (+ 3) which sum to give the coefficient of the x- term.

The factors are - 3 and - 1, since

- 3 × - 1 = + 3 and - 3 - 1 = - 4, hence

x² - 4x + 3 = (x - 3)(x - 1) ← in factored form

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3 years ago

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This is my first time, but my question is what is 7/8 of 20?

Goshia [24]

17.5
Divide 7 by 8 to get .875 and multiply that by 20 to get your answer.

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3 years ago

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PLEASE HELP QUICK!

Ket [755]

Answer:

i got 2808 in3 which wasn't on the list and i was extremely confused, i redid the problem multiple times and got the same answer, i used a calculator AND searched of the web, it still gave me the same answer, if those are the only options something might be wrong, the answer should be 2808 in3.

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2 years ago

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Which identify could be used to rewrite the expression x6-27

hammer [34]

The differnce of 2 perfect cubes

remember
a³-b³=(a-b)(a²+ab+b²)

so
$(x^2)^3-(3)^3=(x^2-3)(x^2+3x+9)$

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3 years ago

Two trains started moving at the same time, train A from Boston to New York, and train B from New York to Boston. The distance b

Ede4ka [16]

Answer:

After 1.7 hours

Explanation:

1. Calculate the average speed of train B

60mph = 3/4 (s) ⇒ s = 60 (4/3) mph = 80 mph

2. Build a table

When the two trains meet:

Train Average speed Distance time (distance/average speed)

mph

A 60 x x/60

B 80 240 - x (240 - x) / 80

3. Write the equation

The time, when the two trains meet, is the same for both trains:

$\dfrac{x}{60}=\dfrac{240-x}{80}\\ \\ \\ 80x=14,400-60x\\ \\ 80x+60x=14,400\\ \\ 140x=14,400\\ \\ x=14,400/140\\ \\ x=102.85miles$

4. Calculate the time:

x/60 = 102.86 / 60 = 1.7 hours

The two trains will meet after 1.7 hours

7 0

3 years ago

Determine whether the LCM for all pairs of odd numbers is ​sometimes​, ​always​, or never​ their product. Explain.

Determine whether the LCM for all pairs of odd numbers is sometimes, always, or never their product. Explain.