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3 years ago

Which of the following is the MOST resistant to erosion?

Mathematics

1 answer:

GaryK [48]3 years ago

3 0

Answer:

steel

plastic coating paints

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10 points! I will thanks, rate, and give best answer!!

vfiekz [6]

Answer: The fourth term is -102

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Explanation:

The term after the nth term is generated by this rule $a_{n+1} = -4(a_n) + 2$ which means that we first
Step 1) multiply the nth term ( $a_n$ ) by -4
Step 2) Add the result of step 1 to the value 2 to get the next term in the sequence

Let's follow those steps above to generate the first four terms

The first term is $a_1 = 2$ . In short, the first term is 2

The second term is...
$a_{n+1} = -4(a_n) + 2$
$a_{1+1} = -4(a_1) + 2$
$a_{2} = -4(2) + 2$
$a_{2} = -8 + 2$
$a_{2} = -6$
So the second term is -6

The third term is...
$a_{n+1} = -4(a_n) + 2$
$a_{2+1} = -4(a_2) + 2$
$a_{3} = -4(-6) + 2$
$a_{3} = 24 + 2$
$a_{3} = 26$
The third term is 26

Finally, the fourth term is...
$a_{n+1} = -4(a_n) + 2$
$a_{3+1} = -4(a_3) + 2$
$a_{4} = -4(26) + 2$
$a_{4} = -104 + 2$
$a_{4} = -102$
The fourth term is -102.

4 0

4 years ago

A construction crew can dig a pit at a rate of 1914 meters per hour. How deep can they dig in 6 hours?

hichkok12 [17]

Answer:

11484m

Step-by-step explanation:

if 1914 = 1hour

Then 6hours= ?

6/1 ×1914

= 11484m

4 0

3 years ago

An expression is shown.

Veseljchak [2.6K]

Answer:

3x + y - 3

Step-by-step explanation:

Like Terms: In algebra, like terms are terms that have the same variables and powers.

To simplify this expression and get an expression that is eual to 5x + 3y - 2x - 2y - 3 I used like terms :

(5x - 2x) + (3y - 2y)

(5x - 2x = 3x) + (3y - 2y = 1y or y)

3x + y

Then we add the - 3 at the end giving us:

3x + y - 3

6 0

3 years ago

Read 2 more answers

Helppppppp i need help

Lunna [17]

Do you need the fraction? I don’t understand what you are asking

8 0

3 years ago

A dealer paid 10000 for a boat at an auction. At the dealership, a salesperson sold the boat for 30% more than the auction price

Artist 52 [7]

Selling price of boat: 1.3($10,000) = $13,000.

Salesman's commission: 0.25($13000-$10000) = 0.25($3000) = $750

7 0

4 years ago