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2 years ago

In a geometric sequence, the term a n+1 can be smaller than the term a n

Mathematics

1 answer:

Rainbow [258]2 years ago

6 0

Do you mean a_(n+1), worded a sub (n+1)?

If so yes. If the function of the sequence is getting smaller or more negative with each term.

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If 2a - b = 4 , find a.

julia-pushkina [17]

<h2>Answer: a = ¹/₂ (4 + b)</h2>

<h3>Step-by-step explanation:</h3>

To solve for 'a' we have to make it the subject of the equation. Since there are two unknowns ('a' & 'b'), we won't get a numerical value of 'a', but an expression in terms of the second unknown 'b'.

Since 2a - b = 4 <em> [add 'b' to both sides]</em>

then 2a = 4 + b <em>[divide both sides by 2 = multiplying by ¹/₂]</em>

a = ¹/₂ (4 + b)

3 0

2 years ago

Hey need some help with this problem, its trigonometry with right triangles using SohCahToa if you can give me a hand it would b

Firlakuza [10]

For the given triangle, the value of x equals 30.9892 units.

Step-by-step explanation:

Step 1:

In the triangle, the angle is 40°, the opposite side has a length of 26 units, the adjacent side has a length of x units while the hypotenuse is not given.

To determine the value of x, we determine the value of the tan of the given triangle.

To calculate the tan of angle A we divide the opposite side's length by the the adjacent side's length.

$tan A = \frac{oppositeside}{adjacent side}.$

Step 2:

The length of the opposite side = 26 units.

The length of the adjacent side = x units.

$tan A = \frac{oppositeside}{adjacent side}, tan 40 = 0.8390, tan A = \frac{26}{x} .$

$0.8390 = \frac{26}{x} , x = \frac{26}{0.8390} = 30.9892.$

So x measures 30.9892 units.

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3 years ago

Need help with math homework, anyone know the answers/how to do these?

mel-nik [20]

These are the answers lol can I get brainliest

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2 years ago

Stefano accidentally dropped his sunglasses off the edge of a canyon as he was looking down. The height, h(t), in meters (as it

arsen [322]

176 meters

Stefano is at +10 elevation while the hiker is at -166.4 elevation. The difference would be 10 - (-166.4) = 10 + 166.4 = 176.4 or approximately 176 meters

7 0

3 years ago

Read 2 more answers

Solve the inequality. –8 ≤ 2x – 4 < 4

Nostrana [21]

First;
-8≤2x-4
-4≤2x
-2≤x

Then;
2x-4<4
2x<8
x<4

-2≤x<4
C is the correct answer.

4 0

2 years ago