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3 years ago

What is The 7th term of the following sequence?

Mathematics

1 answer:

Natalka [10]3 years ago

4 0

Answer:

0.03125

Step-by-step explanation:

Note that -32 is obtained by multiplying 128 by -1/4, and that 8 is obtained in the same way. Thus, the common ratio is -1/4, and the formula for the nth term of this sequence is

a(n) = 128(-1/4)^(n-1).

Then the 7th term is a(7) = 128(-1/4)^(7-1) = 128(-1/4)^6, or 0.03125.

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o-na [289]

If u mean 4^4 or four to the fourth power then it’s 256

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3 years ago

Estimate : 1) 48% of 8 2) 3% of 119 3) 26% of 32 4) 76% of 280

zaharov [31]

1) 48% of 8=3.84
2) 3% of 119=3.57
3) 26% of 32=8.32
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Hope this helps ya!</span>

7 0

3 years ago

3. A submarine dives at an

Vesna [10]

Answer:

The height of deepness of submarine is 424.1 feet

Step-by-step explanation:

Given as :

The angle at which submarine drives of the surface of water = Ф = 13°

The speed at which submarine travel = s = 760 feet per minute

Let The height of deepness of submarine = h feet

The time taken to reach that deepness = t = 5 minutes

<u>According to question</u>

The height of deepness of submarine = $\dfrac{\textrm speed}{\textrm time}$

i.e h × cos(90 - Ф) = $\dfrac{s}{t}$

Or, h × Sin(Ф) = $\dfrac{\textrm 760 feet per min}{8 min}$

Or, h × Sin(13°) = 95 feet

Or, h × 0.224 = 95 feet

∴ h = $\dfrac{95}{0.224}$

i.e h = 424.10 feet

So, The height of deepness of submarine = h = 424.10 feet

Hence, The height of deepness of submarine is 424.1 feet Answer

8 0

3 years ago

A chemical company mixes pure water with their premium antifreeze solution to create an inexpensive antifreeze mixture. The prem

Ne4ueva [31]

Answer:

premium: 165 gallons
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Step-by-step explanation:

Let 'a' represent the amount of 95% antifreeze in the mix. Then the amount of water is (285 -a). The mix has this amount of antifreeze in it:

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2 years ago

The focus is the point inside a _____________ that helps determine the shape of the curve.

bekas [8.4K]

Answer:

Step-by-step explanation:

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2 years ago

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