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den301095 [7]
2 years ago
14

What is the fourth term of the geometric sequence whose first term is 7 and has a common ratio of -2

Mathematics
1 answer:
DochEvi [55]2 years ago
5 0

Answer:

  -56

Step-by-step explanation:

It is often easiest to find terms of a sequence by simply writing each one based on the previous one. Here, the common ratio of -2 tells you that each term is -2 times the previous term.

The first four terms are ...

  7, -14, 28, -56

The fourth term is -56.

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Find f (-4) if f(x) = 3x - 10
Diano4ka-milaya [45]

Answer:

  -22

Step-by-step explanation:

Put -4 where x is and do the arithmetic.

  f(-4) = 3(-4) -10 = -12 -10

  f(-4) = -22

3 0
3 years ago
3² +4² = 5²,
AlekseyPX

Answer:

They are all true

Step-by-step explanation:

1. 3² +4² = 5²

3x3 + 4x4 = 5x5

  9   +  16  =  25

25 = 25

-----------------------

2. 6² + 8² = 10²

36 + 64 = 100

100 = 100

------------------

3. 9² + 12² = 15²

81 + 144 = 225

225 = 225

-------------------

4. 5² +12² =13²

25 + 144 = 169

169 =169

-------------------

7 0
1 year ago
When a number is increased by 12, the results is equal to twice the number equation
Mila [183]

Let the number be x

x + 12 = 2(x + 12)

x + 12 = 2x + 24

x - 2x = 24 - 12

-x = 12

x = -12

The number is -12.

3 0
3 years ago
Jose trabaja en una capinteria su jhefe le `pidio que cortara 9metros en cuatro partes de la misma longitud cuantoi deberia medi
Anna11 [10]

Responder:

2 1/4 m; 225 cm

Explicación paso a paso:

Dado:

Cortar 9 metros en 4 partes de la misma longitud;

Por lo tanto,

9 metros / 4

= 2,25 metros

Por lo tanto, cada varilla será 2.25 = 2 1/4 m

En cm;

1 m = 100 cm

2,25 metros = x

x = 100 * 2,25

x = 225 cm

5 0
3 years ago
How I find total surface area
maks197457 [2]

Answer:

there's this site called ixl.com that I use to help me it works very good  I highly recommend it !

Step-by-step explanation:

4 0
3 years ago
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