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Shkiper50 [21]
3 years ago
9

Which polynomial is a difference of two squares? x2 − 16 x2 + 16 x2 − 8 x2 + 8

Mathematics
2 answers:
AnnZ [28]3 years ago
8 0
X2 - 16, is the answer. The first one.

x^2 - 16 = (x)^2 - 4^2, difference of two squares :)
Effectus [21]3 years ago
6 0
The difference of two squares is of the form:

(a^2-b^2)

I believe that they might just want you to select

(x^2-16) which factors to (x-4)(x+4)

But there is nothing mathematically incorrect in doing the same for:

(x^2-8) which factors to (x-√8)(x+√8)
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How do I work this out oof
kakasveta [241]

I am so sorry for giving you the wrong answer at first.

Here's the processs

1x=-0.5555

Move the decimal point in the repeating decimal one space forward

10x=-5.55555

Then subtract

10x=5.5555

x=-0.5555= 9x=-5

Divide both sides by 9

9x=-5

9x/9=-5/9

-5/9 is your final answer!

Hope this helps!

7 0
3 years ago
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bezimeni [28]

Answer:

no the amount of Kidney beans is not proportional to the amount of black beans

Step-by-step explanation:

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3 years ago
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=Mr.Lehmans hourly rate for labor is 20$

=30+40=70-50=20

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3 years ago
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Find f(2) given f(x) = -3x^3 + x^2 – 3
aleksley [76]

Answer:

D

Step-by-step explanation:

f(x) = -3x^3 + x^2 – 3       f(2) means that wherever you see a x, put in a 2.

f(2)= -3(2)^3 + (2)^2 - 3

f(2) = -3*8 + 4 - 3

f(2) = - 24 + 1

f(2) = - 23

6 0
2 years ago
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iren2701 [21]
<span>The probability that a randomly selected monthly cell phone bill is more than $127 is given by

P(X\ \textgreater \ 127)=1-P(X\ \textless \ 127) \\  \\ =1-P\left(z\ \textless \  \frac{127-100}{11.35} \right)=1-P(z\ \textless \ 2.38) \\  \\ =1-0.99132=0.00868</span>
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