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3 years ago

Can someone please help!!!

Mathematics

2 answers:

scoundrel [369]3 years ago

7 0

The answer is option 3

zloy xaker [14]3 years ago

6 0

Answer: {t| t ≥ 2}

Step-by-step explanation:

3t - 6 ≥ t - 2

-t -t

---------------------

2t - 6 ≥ -2

+6 +6

---------------------

2t ≥ 4

t ≥ 2

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Cross multiply to get answer<br> x + 5/10 = 2x-3/15

Andreyy89

Once cross multiplied you end up with this:

15x+75=20x−30

Next subtract 20x from both sides.

15x+75−20x=20x−30−20x

−5x+75=−30 -----------> Answer

Now subtract 75 from both sides

−5x+75−75=−30−75

−5x=−105

Now divide by -5 on both sides.

-5/-5x = -105/-5

<h3 /><h3>x = 21 --------------> ANSWER</h3>

3 0

3 years ago

What is the factored form of this expression? 27m^3 +125n^3

ddd [48]

Answer:

$\left(3m+5n\right)\left(9m^2-15mn+25n^2\right)$

Step-by-step explanation:

$27m^3+125n^3=\left(3m\right)^3+\left(5n\right)^3$

Apply sum of cubes formula: $x^3+y^3=\left(x+y\right)\left(x^2-xy+y^2\right)$

$\left(3m\right)^3+\left(5n\right)^3=\left(3m+5n\right)\left(3^2m^2-3m\times 5n+5^2n^2\right)$

$\left(3m+5n\right)\left(9m^2-15mn+25n^2\right)$

5 0

3 years ago

Read 2 more answers

URGENT PLEASE HELP. IXL IS TOUGH

guajiro [1.7K]

Answer:

so first get your calc out and type in the formula once you do that but 16 times 7 and equal it than divide it and tell me what you get

Step-by-step explanation:

3 0

3 years ago

ASAP will give brainliest show work check out the photo

gtnhenbr [62]

Answer:

what do you want me to do there's no question

Step-by-step explanation:

4 0

3 years ago

Help!!! I don’t understand how to do this

lidiya [134]

Answer:

$f^{(k)}(x)=\dfrac{17k!(-1)^k}{(x-9)^{k+1}}$

Step-by-step explanation:

The question presumes you have access to a computer algebra system. The one I have access to provided the output in the attachment. The list at the bottom is the list of the first four derivatives of f(x).

The derivatives alternate signs, so (-1)^k will be a factor.

The numerators start at 17 and increase by increasing factors: 2, 3, 4, indicating k! will be a factor.

The denominators have a degree that is k+1.

Putting these observations together, we can write an expression for the k-th derivative of f(x):

$\boxed{f^{(k)}(x)=\dfrac{17k!(-1)^k}{(x-9)^{k+1}}}$

4 0

3 years ago