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shepuryov [24]
3 years ago
11

Scientific notation for 46,072,000

Mathematics
1 answer:
Sonbull [250]3 years ago
6 0
It would be 4.6 * 10^7
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What is the discriminant of 9х2 + 2 = 10x?
vredina [299]

\bf 9x^2+2=10x\implies 9x^2-10x+2=0 \\\\[-0.35em] ~\dotfill\\\\ \qquad \qquad \qquad \textit{discriminant of a quadratic} \\\\\\ \stackrel{\stackrel{a}{\downarrow }}{9}x^2\stackrel{\stackrel{b}{\downarrow }}{-10}x\stackrel{\stackrel{c}{\downarrow }}{+2}=0 ~~~~~~~~ \stackrel{discriminant}{b^2-4ac}= \begin{cases} 0&\textit{one solution}\\ positive&\textit{two solutions}~~\checkmark\\ negative&\textit{no solution} \end{cases} \\\\\\ (-10)^2-4(9)(2)\implies 100-72\implies 28

5 0
3 years ago
write out the sum using the summation notation, assuming the suggested pattern continues. -10-2+6+14+...+110
Ronch [10]
The series is an arithmetic series with first term -10 and common difference (-2-(-10))=8. The general term a_n can be written as
  a_n = -10 + 8(n-1)
or
  a_n = -18+8n

The last term corresponds to
  110 = -18+8n
  128 = 8n
  16 = n

So, the summation can be written as
S_{16}=\sum\limits_{n=1}^{16}{(-18+8n)}
5 0
3 years ago
Read 2 more answers
What is the GCF of the first two terms of the polynomial 4y3+ 8y2+ 5y + 10? a 4y3 b 4 c 4y d 4y2
Sedaia [141]
The answer is D. 4y^2
5 0
3 years ago
PLEASE help! 5. Given that side A and side E are of equal length, find a positive value for x. Show all work.
andrew11 [14]
3x²-11=x+13
3x²-x-24=0
(3x+8)(x-3)=0
x=3 or -8/3
☺☺☺☺

4 0
3 years ago
What's the answer to this math question
fenix001 [56]
Im not exactly sure but i think:

r^2+6r+2
________
5r^2-5r-25

remember IM NOT SO SURE
7 0
3 years ago
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