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vova2212 [387]
3 years ago
13

Find the sixth term of a geometric sequence with which a, =-3 and r=-2.​

Mathematics
1 answer:
andrey2020 [161]3 years ago
8 0

Answer: 96

Step-by-step explanation: a is the initial term, and r is the ratio by which a increases. Multiplying -2 by -3 five times gives this sequence: -3, 6, -12, 24, -48, 96

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Could someone explain this to me?
Ilya [14]
This is a simple differentiation problem. Let's start by taking the derivative of both sides (with respect to x):
5y^4\frac{dy}{dx}+6y^2x+6x^2y\frac{dy}{dx}+20x^3 = 0

Simplify:
\frac{dy}{dx} (5y^4+6x^2y) + 6y^2x+20x^3 = 0

Solve for dy/dx:
\frac{dy}{dx} = \frac{-6y^2x-20x^3}{5y^4+6x^2y}

Now, plug in the given points:
\frac{dy}{dx} = \frac{-6(2)^2(-1)-20(-1)^3}{5(2)^4+6(-1)^2(2)} = \frac{24+20}{80+12}

Further simplification gives:
\frac{dy}{dx}|_{(2,-1)} =\frac{44}{92} =  \frac{11}{23}

So, your answer is 11/23 or B.
7 0
4 years ago
Identify the following number as rational or irrational 3.2573820193748...
Bingel [31]

Answer: Irrational

Step-by-step explanation:

4 0
3 years ago
Evaluate 8 a − 1 + 0.5 b 8a−1+0.5b8, a, minus, 1, plus, 0, point, 5, b when a = 1 4 a= 4 1 ​ a, equals, start fraction, 1, divid
Fynjy0 [20]

Answer:

6

Step-by-step explanation:

We want to evaluate:

8a-1+0.5b

When a=1/4 and b=10.

We simply substitute the given values of as and b into the given expression,

8a-1+0.5b=8(\frac{1}{4}) -1+0.5(10)\\=2-1+5\\=6

The value of the expression is 6 for the give values of a and b.

8 0
3 years ago
Read 2 more answers
Identify the trinomial that is a perfect square. HELP ASAP
Oliga [24]
D. (9x-4)^2

You can find this by taking the square roots of the outside numbers and multiplying them by each other and 2 to see if they equal the middle number. 
7 0
3 years ago
The present age of Madison’s mother is 3 times that of Madison. After 614 years, the sum of their age will be 5334 years. Find t
Neporo4naja [7]

The present age of Madison is <u>1027 years</u> and that of his mother is <u>3080 years</u> (rounded off to nearest whole numbers), solved using the linear equation in one variable: <u>(x + 614) + (3x + 614) = 5334</u>, where x represents the present age of Madison.

<h3>What are linear equations in one variable?</h3>

Linear equations in one variable are the linear relationship between two algebraic expressions not involving more than one variable throughout the equation.

<h3>How to solve the question?</h3>

In the question, we are informed that the present age of Maison's mother is 3 times that of Madison. After 614 years, the sum of their age will be 5334 years.

We are asked to determine their present ages.


We assume the present age of Madison to be x years.

Therefore, the present age of Madison's mother = 3x years {3 times that of Madison}.

Now, after 614 years, both of their ages will increase by 614 years.

Therefore, age of Madison after 614 years = x + 614 {Present + 614}.

Age of Madison's mother = 3x + 614 {Present + 614}.

We are given that after 614 years, the sum of their ages will be 5334.

This can be represented by the linear equation in one variable:

(x + 614) + (3x + 614) = 5334

This linear equation in one variable can be simplified and solved in the following way:

or, 4x + 1228 = 5334 {Simplifying},

or, 4x + 1228 - 1228 = 5334 - 1228 {Subtracting 1228 from both sides}

or, 4x = 4106 {Simplifying}

or, 4x/4 = 4106/4 {Dividing both sides by 4},

or, x = 1026.5 {Simplifying}.

Therefore, the present age of Madison = x = 1026.5 = 1027 years (nearest whole number).

The present age of Madison's mother = 3x = 3*1026.5 = 3079.5 = 3080 years (nearest whole number).

Learn more about linear equations in one variable at

brainly.com/question/185288

#SPJ2

7 0
2 years ago
Read 2 more answers
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