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Anettt [7]
2 years ago
15

I need help with question two please, it’s due tomorrow first thing so kinda need to get it done

Mathematics
1 answer:
oksano4ka [1.4K]2 years ago
4 0
The third option: y = kx^2
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Find the value of x.
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The answer will be X=3
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3 years ago
Which equation is equivalent to 7-2(3x+4)=8x <br> A -6x+15=8x<br> B-6x-1=8x<br> C15x+20=8x
Reptile [31]

Answer:

B

Step-by-step explanation:

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3 years ago
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What is the coefficient of the fourth term in the expansion of (x - y)^6?
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<span>If you're aware of the binomial theorem, you have that:
</span>(x-y)^6=\sum_{k=0}^{6}\binom{6}{6-k}x^k(-1)^{6-k}y^{6-k}
(x-y)^6=\sum_{k=0}^{6}\binom{6}{k}x^k(-1)^{k}y^{6-k}

The fourth term is then the case k=3, from which:
c_{3}=\binom{6}{3}x^3(-1)^3y^3= \frac{6!}{3!(6-3)!} * (-x^3y^3)=- \frac{720}{36}x^3y^3=-20x^3y^3
3 0
3 years ago
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In the United States nearly 8 x 10^9 text messages are sent everymonth About how many text messages is this! Find the primefacto
iris [78.8K]
8\times10^9=2^{12}\times5^9

1) Since in the USA 8 x 10 ^9 messages are sent every month, that means that approximately 8 billion messages are sent.

2) We can Prime factorize it:

Note that on the right side we've picked only prime numbers. In this case, 2 and 5.

So we can rewrite 8 x 10^9 as prime factors.

8\times10^9=2^{12}\times5^9

3) Hence, the answer is:

8\times10^9=2^{12}\times5^9

7 0
1 year ago
the speed of sound at sea level is 340 m/s. alan is standing 255m from his friend, paul. if alan shouts to paul how long willi i
Bad White [126]

Answer: 0.75 seconds


Step-by-step explanation:

meters divided by meters per second gives seconds.

255m / (340m/s) = 0.75 seconds

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4 years ago
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