3 years ago

(1,4,9,4,10,8,42)

Mathematics

1 answer:

mixas84 [53]3 years ago

7 0

The answer is has to be D

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Arada [10]

Answer: 6

Step-by-step explanation:

2*3*6=12

12/2=6

formula= b*h/2

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X=h/4+5/4 is the correct answer

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Find the tenth term of the geometric sequence, given the first term and common ratio.

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Answer:

$a_{10}=\dfrac{1}{128}$

Step-by-step explanation:

In the geometric series:

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In your case, n = 10, then

$a_{10}\\ \\=4\cdot \left(\dfrac{1}{2}\right)^{10-1}\\ \\=4\cdot \left(\dfrac{1}{2}\right)^9\\ \\=2^2\cdot \dfrac{1}{2^9}\\ \\=\dfrac{1}{2^{9-2}}\\ \\=\dfrac{1}{2^7}\\ \\=\dfrac{1}{128}$

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What is the length of line FB?

juin [17]

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What is the correct factorization of x^2 - 2x - 15?

iragen [17]

Answer:

option b

Step-by-step explanation:

${x}^{2} - 2x - 15$

${x}^{2} - 5x + 3x - 15 = 0$

$x(x - 5) + 3(x - 5) = 0$

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So, x = 5

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