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Elodia [21]
3 years ago
5

The explicit formula for a sequence is

Mathematics
1 answer:
Alexandra [31]3 years ago
3 0

Answer:

28

Step-by-step explanation:

Let n = 21, and evaluate the expression.

a_n = -2 + \dfrac{3}{2}(n - 1)

a_{21} = -2 + \dfrac{3}{2}(21 - 1)

a_{21} = -2 + \dfrac{3}{2}(20)

a_{21} = -2 + \dfrac{3}{1}(10)

a_{21} = -2 + 30

a_{21} = 28

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José has 3 brown socks, 5 blue socks, and 6 black socks
lukranit [14]

Answer:

independent

Step-by-step explanation:

, it has no effect on the number of red socks  so thewhen he draws out a sock the  event is not affected by the draw a blue sock or the bla ck sock or the brown sock

8 0
3 years ago
Sales Price 50 %What was the original price of a washing machine wholesale price is $285?
irakobra [83]

Answer:

$570

Step-by-step explanation:

If 50% of the price is $285, all you have to do is mulipy 285 by 2. This would give you the answer of $570 as the orignal price of the washing machine.

4 0
3 years ago
According to Professor Robinson, which of the following aspects of A Streetcar Named Desire can be said to reflect elements of T
natita [175]
The best and most correct answer among the choices provided by the first question is letter E which is all of the above.


On the other hand, the best and most correct answer among the choices provided by the second question is  letter A which is rebirth and coming death.


I hope my answer has come to your help. Have a nice day ahead and may God bless you always!
7 0
3 years ago
plsss helppp need it fastt .. what is the volume of this figure answer your answer in the box . 4ft 3ft 8ft 2ft 6ft
PolarNik [594]

Answer:

e

Step-by-step explanation:

The cube on the top, the one with the width of 4 is Cube 1.

The other one is Cube 2.

The length of the cube is 4, the width 2, and the height 5.

We know the length is 4 because we can look at the side, where both measurements 6 ft and 3 ft can be found.

We know that the height is 5 because for Cube 2, the height is 3. The total height is 8, so we subtract 3 from 8. We get our difference of 5.

V = l x w x h

V = (4)(2)(5)

V = (8)(5)

V = 40.

Cube 2 has a length is 6, the width 2, and the height 3.

V = l x w x h

V = (6)(2)(3)

V = (12)(3)

V = 36

We add the volumes of both cubes.

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probs not right but hope it helped :)

8 0
3 years ago
(x+7)^2+9=0<br><br> Find x with quadratics
Ne4ueva [31]

Answer:

x = -7 ±3i

Step-by-step explanation:

(x+7)^2+9=0

Subtract 9 from each side

(x+7)^2+9-9=0-9

(x+7)^2=-9

Take the square root of each side

sqrt((x+7)^2) = ±sqrt(-9)

We know sqrt(ab) = sqrt(a) sqrt(b)

x+7 = ±sqrt(-1) sqrt(9)

We know that sqrt(-1) is the imaginary number i

x+7 = ±i *3

x+7 =±3i

Subtract 7 from each side

x+7-7 = -7 ±3i

x = -7 ±3i

6 0
4 years ago
Read 2 more answers
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