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Yuki888 [10]
3 years ago
15

Factor the polynomial by substitution. 5(4n - 1)^2 + 23(4n – 1) -10

Mathematics
1 answer:
Free_Kalibri [48]3 years ago
4 0
5(4n-1)^2 +23(4n-1)-10

5(4n-1)^2 +25(4n-1)- 2(4n-1)-10

5(4n-1)(4n-1+5)- 2(4n-1+5)

(4n-1+5) (5(4n-1)-2)

(4n+4) (20n-5-2)

4(n+1) (20n-7)
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State whether the number is prime, composite, or neither.<br><br> 55
victus00 [196]

Answer:

composite

Step-by-step explanation:

because number is a number that can be divided evenly by more numbers than 1 and itself.The number 55 can be evenly divided by 1, 5, 11

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Given: △EDN∼△LKI, DQ , KO are altitudes, DN=12, KI=4, DQ=KO+6. Find: QN and OI.
fgiga [73]

Answer:

  • QN = 3√7
  • OI = √7

Step-by-step explanation:

The ratio of corresponding sides DN and KI is 12 : 4 = 3 : 1. The same ratio applies to altitudes DQ and KO. Since the difference between these altitudes is 6 and the difference between their ratio units is 3-1 = 2, each ratio unit must stand for 6/2 = 3 units of linear measure. That is, ...

  DQ = (3 units)·3 = 9 units

  KO = (3 units)·1 = 3 units

Then the base lengths QN and OI can be found from the Pythagorean theorem:

  KI² = KO² +OI²

  4² = 3² +OI²

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8 0
3 years ago
2/20 divided by 8/10
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Step-by-step explanation:

5 0
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Galina-37 [17]

Answer:

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Step-by-step explanation:

First find the tax

540 * .06 = 32.4

Add this to the original cost

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emmasim [6.3K]

\textsf{Hey there!}

\mathsf{81^2=81\times81\rightarrow\bf{6,561}}

\mathsf{(6,561)^{\dfrac{1}{8}}= \bf{3}}

\boxed{\boxed{\mathsf{Therefore, your\ answer\ is: \boxed{\huge\textsf{\bf{C. 3}}}}}}\huge\checkmark

\textsf{Good luck on your assignment and enjoy your day!}

~\dfrac{\frak{LoveYourselfFirst}}{:)}

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