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wlad13 [49]
3 years ago
9

How do you write the nth term rule for the sequence 1 , 3 , 5 , 7

Mathematics
1 answer:
Rashid [163]3 years ago
5 0

basically the answer is 2n-1  2n comes from the difference to get from 1 to three and the -1 from 2n to get to 1 you need to minus 1 so you get -1

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Find the integral, using techniques from this or the previous chapter.<br> ∫x/25-9x^2 dx.
kipiarov [429]

Answer:

\frac{x^{2} }{50} - 3x^{3} +C

Step-by-step explanation:

we are to find the integral of  \frac{x}{25} -9x^{2} dx.

we will integrate by using the principle of integration of a sum or difference of two functions by integrating them separately.

∫x/25-9x^2 dx = \frac{x^{2} }{2*25}- 9\frac{x^{3} }{3} +C

                       = \frac{x^{2} }{50}- 3x^{3} +C

8 0
3 years ago
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Jlenok [28]
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3 0
4 years ago
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6. An urn contains 15 red balls and 8 blue balls. In each draw, one ball is extracted at random. It is then returned to the urn,
Leviafan [203]

Answer:

P(C4) = 0.0711

Step-by-step explanation:

consider the first draw = 15/23  since it cannot be a blue ball

The second draw = 21/29 since 6 more red balls will be added after the draw since a blue ball cannot be drawn

the third draw = 27/35 since 6 more red balls will be added after each draw since a blue ball cannot be drawn

therefore the total number of red balls will be = 15 + 6 + 6 + 6 = 33 red balls after the 4th draw. the total ball now in the urn= 33 red + 4 blue = 41

Hence the probability of drawing a blue ball at the fourth draw after drawing red balls at the previous attempts = 8/41

P(C4) = P ( fourth ball is blue ) * P( first ball red)*P(second ball red) *P(third ball red )

= (8/41) * (15/23) * (21/29)* (27/35) = 0.0711

8 0
3 years ago
5 to the power of 5 divided by 5 to the power of 3
Lemur [1.5K]

Answer:

25

Step-by-step explanation:

5 to the power of 5 is 3125.

because you do 5x5x5x5

then you do 5x5x5 which is 125

3125/125 = 25

6 0
3 years ago
Marcus went on a diet and lost weight. He now weighs 197.4 pounds, witch is 84% of his original weight. How much did he weigh at
QveST [7]
Take his original weight and divide it by the 84% or 0.84 as a decimal. This works out to be 235 lbs.
4 0
3 years ago
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