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Aleksandr [31]
3 years ago
7

Write an expression for the number of small squares in pattern n Please properly answer.

Mathematics
1 answer:
antoniya [11.8K]3 years ago
3 0

Answer:

(n + 2)² + 6

Step-by-step explanation:

pattern 1:

Total squares = 15

3² + 6 = 16

Pattern 2:

Total squares = 22

4² + 6

Pattern 3:

Total squares = 31

5² + 6

Looking at the series,

There is an Increment of 1 in squared integer as the pattern increases; there is also a constant integer of 6

Hence, expressing the nth pattern in the form ;

(n + a)² + b

Where n is the nth pattern ; a = (Coefficient of n² in first pattern - 1) = (3 - 1) =2 ;

b = 6

Hence, we have ;

(n + 2)² + 6

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Find the derivative of the algebraic functions
jek_recluse [69]

Answer:

10) f'(x) = (x² + 6x - 3)/(x + 3)²

11) g'(x) = 1 - csc²x

Step-by-step explanation:

10. f(x) = x(1 - (4/(x + 3))

Expanding gives;

f(x) = x - (4x/(x + 3))

Differentiating gives;

f'(x) = 1 - 4/(x + 3) + 4x/(x + 3)²

Simplifying this gives;

f'(x) = [(x + 3)² - 4(x + 3) + 4x]/(x + 3)²

f'(x) = (x² + 6x + 9 - 4x - 12 + 4x)/(x + 3)²

f'(x) = (x² + 6x - 3)/(x + 3)²

11. g(x) = x + cot x

Rewriting this gives;

g(x) = x + (1/tan x)

We know that derivative of tan x is sec x while derivative of (1/tan x) is -csc²x

Thus;

g'(x) = 1 - csc²x

This can be written as

Differentiating this gives;

g'(x) = 1 - csc²x

5 0
3 years ago
Which is the best estimate of (-3/5)(175/6)<br> –18<br> –9<br> 9<br> 18
Ratling [72]
The answer would be -9




I hope this helps.
8 0
3 years ago
Read 2 more answers
1/2 divided by5 in fraction form
erik [133]

Answer:

1/10

Step-by-step explanation:

1/2 ÷ 5

First you must use the form KCF, or Keep Change Flip

Keep the first integer (1/2)

Change the symbol (÷) > (×)

Flip the last remaining integer (5) > (1/5)

You remain with

1/2 x 1/5

Keep the numerator the same (since 1 x 1 = 1)

Multiply the denominators ( 2 x 5 = 10)

The answer is 1/10

3 0
3 years ago
Read 2 more answers
A commercial aircraft gets the best fuel efficiency if it operates at a minimum altitude of 29,000 feet and a maximum altitude o
Cloud [144]

Answer:

x\geq 29,000  and  x\leq 41,000

Step-by-step explanation:

Let

x -----> the altitude of a commercial aircraft

we know that

The expression " A minimum altitude of 29,000 feet" is equal to

x\geq 29,000

All real numbers greater than or equal to 29,000 ft

The expression " A maximum altitude of 41,000 feet" is equal to

x\leq 41,000

All real numbers less than or equal to 41,000 ft

therefore

The compound inequality is equal to

x\geq 29,000  and  x\leq 41,000

All real numbers greater than or equal to 29,000 ft and less than or equal to 41,000 ft

The solution is the interval ------> [29,000,41,000]

7 0
4 years ago
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Alenkasestr [34]

Answer:

a)4c +12 b)10x + -14 c) 3x+5 d)11y+(-1)

Step-by-step explanation:

as the nos without the variables can be added we can add the integers

5 0
4 years ago
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