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mr_godi [17]
2 years ago
7

Which term of the Ap: 9,8,13,18.......is 79?Please don't post invalid answer..!!​

Mathematics
1 answer:
GalinKa [24]2 years ago
4 0

a {}^{n}  = 79

n =  ?

a = 3

79 = 3 + (n - 1) \times 5

76 = 5n - 5 \\ 81 = 5n \\ n = 16.2

16.2 is the answer

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Please help!!<br> -2x = x - 5
irina [24]

Answer:

x=5/3

Step-by-step explanation:

Subtract x from both sides so you have -3x=-5. Then divide both sides by 3 and you are left with x=5/3

3 0
3 years ago
Read 2 more answers
A large farm has 75 acres of wheat and 62.5 acres of corn. The farm crew can harvest the wheat from 12 acres and the corn from 1
MAVERICK [17]
The answer for either field being harvested is 6.25 days (acres/(rate of harvest))
The answer is probably seven because, even though a day can be divided into parts, the fields are done the seventh not the sixth. (I'm assuming the problem calls for whole days)
4 0
2 years ago
From data gathered in the period 2008−2012, the yearly value of U.S. exports can be modeled by the function E(x) = −228x3 + 2,25
vredina [299]

Answer:

The total value the U.S. imported and exported is 19364 billion dollars

Step-by-step explanation:

* Lets explain how to solve the problem

- The yearly value of U.S. exports can be modeled by the function

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# x is the number of years after 2008

# E(x) is the value of exports in billions of dollars

- The yearly value of U.S. imports can be modeled by the function

 I(x) = −400.4 x³ + 3,954.4 x² − 11,128.8 x + 17,749.6

# x is the number of years after 2008

# I(x) is the value of imports in billions of dollars

* We need to calculate the total value the U.S. imported and

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∵ x is the number of years after 2008

∴ At 2012 x = 4 years

- Lets calculate the value of the exports in 2012

∴ E(x) = -228(4)³ + 2,252.8(4)² - 6,098.5(4) + 11,425.8

∴ E(x) = 8484.6 billion dollars

- Lets calculate the value of the imports in 2012

∴ I(x) = -400.4(4)³ + 3,954.4(4)² - 11,128.8(4) + 17,749.6

∴ I(x) = 10879.2 billion dollar

∵ The total value the U.S. imported and exported = E(x) + (I(x)

∴ The total value = 8484.6 + 10879.2 = 19363.8

∴ The total value = 19364 billion dollars

* The total value the U.S. imported and exported is 19364 billion dollars

7 0
3 years ago
a certain state the license plate has two digits, then two letters, and then two digits. How many different license plates are p
xxTIMURxx [149]

Step-by-step explanation:

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7 0
2 years ago
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A closed box with a square base is to have a volume of 85. 75 cm^3. the material for the top and bottom of the box costs ​$3.00
tiny-mole [99]

We can create two equations here:

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From (1), we get:

h = 85.75 / s^2

 

Combining this with (2):

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C = 3 s^2 + 128.625 s-

 

Taking the 1st derivative and equating dC/ds = 0:

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Multiply all by s^2:

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s = 2.78 cm

 

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h = 11.10 cm

 

So the dimensions are 2.78 cm x 2.78 cm x 11.10 cm

 

The total cost now is:

C = 3 (2.78)^2 + 1.5 (2.78) (11.10)

C = $69.47

8 0
2 years ago
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