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igor_vitrenko [27]
3 years ago
13

Multiply and simplify. (x - 3)(x2 + 3x + 9)

Mathematics
2 answers:
PilotLPTM [1.2K]3 years ago
7 0
2x^2 - 6x + 3x^2 - 9x + 9x - 27
5x^2 -6x - 27

Comment for further math, hope this helps. (brainliest please)
saul85 [17]3 years ago
4 0
When you distribute and combine like terms, the result is x^3-27

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Leona [35]

Answer:

A and D represent linear functions

4 0
2 years ago
What is the value of x in the equation ?2.5(6x-4)=10 4(1.5 0.5x)
MA_775_DIABLO [31]
<span>2.5<span>(<span><span>6x</span>−4</span>)</span></span>=<span><span><span><span><span>(10)</span><span>(4)</span></span><span>(1.5)</span></span><span>(0.5)</span></span><span>x

</span></span><span><span><span><span>(2.5)</span><span>(<span>6x</span>)</span></span>+<span><span>(2.5)</span><span>(<span>−4</span>)</span></span></span>=<span><span><span><span><span>(10)</span><span>(4)</span></span><span>(1.5)</span></span><span>(0.5)</span></span>x</span></span>(Distribute)<span><span><span><span>15x</span>+</span>−10</span>=<span>30x
</span></span><span><span><span>15x</span>−10</span>=<span>30<span>x


</span></span></span><span><span><span><span>15x</span>−10</span>−<span>30x</span></span>=<span><span>30x</span>−<span>30x</span></span></span><span><span><span>−<span>15x</span></span>−10</span>=<span>0

</span></span><span><span><span><span>−<span>15x</span></span>−10</span>+10</span>=<span>0+10</span></span><span><span>−<span>15x</span></span>=<span>10
</span></span><span><span><span>−<span>15x</span></span><span>−15</span></span>=<span>10<span>−15</span></span></span><span>x=<span><span>−2</span><span>3
</span></span></span>Answer:<span>x=<span><span>−2</span><span>3</span></span></span>

<span>

</span><span>


</span>
3 0
3 years ago
If 5(3x-7)=20, then what is 6x-8 ?
Colt1911 [192]
First solve for x in the first equation. So you'll have to substitute,
5(3x-7)=20
15x-35=20
Then add 35 to both sides.
15x=55
Divide 55 by 15.
So x = 3.66...
Then plug in 3.7 for x in 6x-8
6(3.7)-8
Its approximately 14.2
3 0
3 years ago
Assume that there are 2 trials.
vampirchik [111]
Answer: The p(success) = 0.6

Your question is a little unclear, but I believe you are asking about the probability that at least one of the trials in the experiment were successful.

If that is the case, you simply have to add the probability of 1 success with the probability of 2 successes.

That is 0.48 +  0.16 = 0.64

Rounding our answer to one decimal place gives us 0.6.
7 0
2 years ago
Read 2 more answers
What are the x and y intercepts of the below equation
lozanna [386]
Plug in 0 for x
0 - 6y = 30
y = -5
Y intercept: (0,-5)

Plug in 0 for y
5x = 30
X = 6
X intercept: (6,0)
3 0
2 years ago
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