Mathematics: What is the value of x in the geometric sequence x, 2, -1/2, ? a. -12 b. -8 c. -4 d. -1/2

What is the value of x in the geometric sequence

Ответ:

anggar20

12.01.2022

B. -8

Step-by-step explanation:

$\text{If}\ a,\ b,\ c\ \text{is a geometric sequence, then}\ (a)(c)=b^2.\\\\\text{We have}\ x,\ 2,\ -\dfrac{1}{2}.\ \text{Substitute:}\\\\(x)\left(-\dfrac{1}{2}\right)=2^2\\\\-\dfrac{1}{2}x=4\qquad\text{multiply both sides by (-2)}\\\\x=-8$

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Ответ:

faithmccarroll3939

02.11.2022

Mathematics

Terms

Explanation:
Any expression is formed of terms separated by addition or subtraction.
A term can be a number, a variable or the product of multiplying a number and a variable.
Now, the given expression is:
a + 2b + 12c^2
This expression has three terms all separated by addition. These terms are:
a : which is only a variable
2b : which is the product of a number and a variable
12c^2 : which is the product of a number and a variable

Hope this helps :)

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What is the value of x in the geometric sequence x, 2, -1/2, ?

a. -12
b. -8
c. -4
d. -1/2

Ответ:

Ответ:

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