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DedPeter [7]
3 years ago
13

Write the recursive formula for the geometric sequence: a1 = -2, a2 = 8, a3 = -32

Mathematics
1 answer:
Veronika [31]3 years ago
6 0
In the sequence, we are given with -2, 8, -32...This is a geometric type of sequence with a geometric ratio of 4. a1 is equal to -2 and r is equal to 4The expression is
a n = a1 * r ^ (n-1) where n is an integer ora n = a1 * (-4) ^ (n-1)we can check or verify this using the given
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Expand and simplify 2(5x - 1) – (2x - 5) ​
horrorfan [7]

Answer:

2(5x - 1) – (2x - 5)

=2(5x−1)−2x+5

=10x−2−2x+5

=(10x−2x)+(−2+5)

=8x+3

Step-by-step explanation:

3 0
2 years ago
What is the value of X?<br> Intersecting Chords (Lengths)
quester [9]

Answer:

x = 4

Step-by-step explanation:

(8)(7) = 14x

14x = 56

x = 4

3 0
3 years ago
Anyone? Please I need help!!
JulsSmile [24]

Answer:

  the correct choice is marked

Step-by-step explanation:

Let x represent the smaller number. Then the larger number is 8x, and the difference is ...

  8x -x = 280

  7x = 280 . . . . . simplify

  x = 40 . . . . . . divide by 7

The larger number is 8x = 8(40) = 320.

_____

<em>Additional comment</em>

Effectively, we have solved for the multiplier (40) that gives the ratio with 320 on top and a difference between top and bottom of 280:

  \dfrac{8}{1}=\dfrac{8\cdot40}{1\cdot40}=\dfrac{320}{40}

4 0
2 years ago
If f(x)=-x+2, find f(4)
lianna [129]

Answer:

\boxed{-2}

.

Step-by-step explanation:

f(x) = -x + 2

.

f(4) = -4 + 2

f(4) = -2

5 0
3 years ago
What is the hypothesis of a triangle with a base of 11cm and height of 9cm
natima [27]

<u>Answer:</u>

<h2>14.21 cm</h2>

<u>Explanation:</u>

you mean the hypotenuse* lol

the hypotenuse = √(11²+9²)

the hypotenuse = √(121+81)

the hypotenuse = √(202)

the hypotenuse ≈ 14.21 cm

3 0
2 years ago
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