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4 years ago

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Mathematics

1 answer:

Tamiku [17]4 years ago

8 0

Using the Pythagorean theorem

c^2 = a^2 +b^2
C^2 = 12^2 + 8^2
c^2 = 144 +64
c^2 = 208

c= sqrt(208)

c= 14.4 feet

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1. The face of a brick is 3 1/2 inches by 8 inches. Suppose you want to create a

elena-14-01-66 [18.8K]

Answer:

40 bricks

Step-by-step explanation:

3 1/2×8

=28

56×20

=1,120

1,120÷28

=40 bricks

3 0

4 years ago

15, 11, 7, 3, -1, ... explicit formula and recursive formula

monitta

Recursive formula is: $a_n = a_{n-1} -4$

Explicit formula is: $a_n = 19-4n$

Step-by-step explanation:

Given sequence is:

15,11,7,3,-1

Here

$a_1 = 15\\a_2 = 11\\a_3 = 7$

First of all, we have to find the common difference

Common difference is the difference between consecutive terms of an arithmetic sequence

So,

$d = a_2-a_1 = 11-15 = -4\\d = a_3-a_2 = 7-11 = -4$

Recursive Formula:

A recursive formula is used to find the next term of an arithmetic sequence using previous term and common difference

General form of recursive formula for a given common difference d is:

$a_n = a_{n-1} + d$

Putting the value of d

$a_n = a_{n-1} -4$

Explicit Formula:

The explicit formula is given by:

$a_n = a_1 + (n-1)d$

Putting the first term and common difference

$a_n = 15 + (n-1)(-4)\\a_n = 15 -4n+4\\a_n = 19-4n$

Hence,

Recursive formula is: $a_n = a_{n-1} -4$

Explicit formula is: $a_n = 19-4n$

Keywords: Arithmetic sequence, common difference

Learn more about arithmetic sequence at:

#LearnwithBrainly

4 0

4 years ago

*PLEASE ANSWER!!! , I WILL MARK BRAINLIEST!! , ASAP!!*

tamaranim1 [39]

A country's income distribution is the distribution of total GDP among the total population

hope it helps

5 0

3 years ago

Find the derivative of f(x) = 6 / x at x = -2.

sveticcg [70]

Answer:

Substitute the given value into the function and evaluate.

−3

Step-by-step explanation:

I think I'm not really sure but use math-way it helps a lot

6 0

3 years ago

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Ainat [17]

Answer: 3 liters for 1.89.

Step-by-step explanation:

1.89/3 = 0.63 per liter

6.90/ 10 = 0.69 per liter

4 0

4 years ago

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