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UkoKoshka [18]
3 years ago
14

(-5k^3 – 6k + 1) +(-6k^2 + 5k)

Mathematics
2 answers:
makkiz [27]3 years ago
7 0

Answer:

I assume you have to simplify the expressions.

-5k^3-6k^2-k+1 is the answer.

Step-by-step explanation:

masha68 [24]3 years ago
3 0

Answer:

-5k^3-6k^2-k+1

Step-by-step explanation:

rewrite without parentheses

-5k^3-6k+1-6k^2+5k

group like terms

-5k^3+1-6k^2+(-6k+5k)

-5k^3-6k^2-k+1

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I need help, I don't know how to do it.
Sindrei [870]

Answer:

Step-by-step explanation:

to solve this problem we can use the Pythagorean theorem

UT and TL are the legs, while LU is the hypotenuse

We have to find LU so we can proceed like this

x^2 + (x+1)^2 = LU^2

x^2 + x^2 + 1 + 2x = LU^2

2x^2 + 2x + 1 = LU^2

LU = +/- \sqrt{2x^2+2x+1

we have to take only the positive value because a length can’t be negative.

2x^2 + 2x + 1 is positive for every value of x, so the final answer is

\sqrt{2x^2+2x+1}

5 0
3 years ago
Someone please answer my question please I am struggling and need to finish tonight I think I got the answer but I am not sure p
NeX [460]

In the figure we have three right angles .The triangles similar to each other .Similar triangles have sides in proportion .The altitude rule is true for the triangles .

The theorem states :The altitude to the hypotenuse of a right triangle is the mean proportional between the segments into which it divides the hypotenuse.

\frac{part of hypotenuse}{altitude} =\frac{altitude}{other part hypotenuse }

Substituting the values from the triangles we ahve:

\frac{r}{h} =\frac{h}{s}

s is the right answer

4 0
4 years ago
Simplify the expression. Write the answer with positive exponents only. Assume the variable represents a nonzero real number.
luda_lava [24]

Answer:

\frac{1}{w^{29}}

Step-by-step explanation:

The given expression is \frac{w^{-7}(w^{-9})^2}{w^4}.

Since, w^{-7}=\frac{1}{w^7}

And w^{9}=\frac{1}{w^9}

Expression will become,

\frac{w^{-7}(w^{-9})^2}{w^4}=\frac{\frac{1}{w^7}(\frac{1}{w^9})^2}{w^4}

               =\frac{\frac{1}{w^7\times w^{18}}}{w^4}

               =\frac{\frac{1}{w^{(7+18)}}}{w^4}

               =\frac{1}{w^{25}}\times \frac{1}{w^4}

               =\frac{1}{w^{25}\times w^4}

               =\frac{1}{w^{29}}

Therefore, Simplified form of the given expression will be \frac{1}{w^{29}}.

3 0
3 years ago
What is k equal to if 7.6/2 =9.5/k
lord [1]

Answer:

k=2.5

Step-by-step explanation:

7.6/2 = 3.8

9.5/3.8 = 2.5

7 0
3 years ago
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Answer:

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Step-by-step explanation:

y=8x+6

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