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2 years ago

7

Given a matrix where every cell has some number of coins. count number of ways to reach bottom right from top left with exactly

k coins. we can move to (i+1, j) and (i, j+1) from a cell (i, j).

1 answer:

boyakko [2]2 years ago

8 0

Yes that is very true cause we ballin

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Need help on the yellow question

hodyreva [135]

8/21 is the answer to the question

8 0

2 years ago

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Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Draw a typical approximating

MakcuM [25]

Answer:

A=8.4063 $u^{2}$

Step-by-step explanation:

Be the functions:

$y=\frac{3}{x};y=\frac{3}{x^{2}}:x=7$

according the graph:

$\int\limits^1_7 {\frac{3}{x} } \, dx -\int\limits^1_7 {\frac{3}{x^{2} } } \, dx =3\int\limits^1_7 {\frac{1}{x} } \, dx -3\int\limits^1_7 {\frac{1}{x^{2} } } \, dx=3(\int\limits^1_7 {\frac{1}{x} } \, dx -\int\limits^1_7 {\frac{1}{x^{2} } } \, dx)=3[lnx-\frac{1}{x}](1-7)=3[(ln7-ln1)-(\frac{1}{7}-1)]=3[(1.945-0)-(0.1428-1)]=3*(1.945+0.8571)=3*2.8021=8.4063u^{2}$

6 0

2 years ago

The perimeter of a regular octagon is 24a + 48 inches.(a) write an expression for the length of any one side of the octagon. The

Lubov Fominskaja [6]

Answer:

3a+6

Step-by-step explanation:

3a+6 = 24a+48 divided by 8 (there are 8 sides in an octagon)

covert 24a +48 inches into feet

2a+4 feet = 18 feet

subtract 4 from both sides

2a = 14

divided 2 from both sides

a = 7

covert 3a+6 inches into feet

0.25a +0,5

0.25(7)+0.5

= 2.25

verify your answer

2.25 x 8 = 18

4 0

2 years ago

Which property is represented ? <br> 0+45=45 what represents the property

choli [55]

Property of addition.

5 0

2 years ago

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How many students do not like any of the three fruits?<br>16<br>17<br>19<br>25

alexdok [17]

Answer:

D. 25

Step-by-step explanation:

Total students = 90

<u>Students who like at least one of the fruit:</u>

20 + 16 + 8 + 4 + 5 + 10 + 2 = 66

<u>Number of students do not like any of the fruits:</u>

90 - 65 = 25

4 0

2 years ago