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sveta [45]
4 years ago
12

Determine the sum of the first 20 terms of an arithmetic series with an initial term of 3 and a common difference of 2.

Mathematics
1 answer:
olasank [31]4 years ago
3 0

Answer:

440

Step-by-step explanation:

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Can you help stuck on this question for a while ​
stepladder [879]

Answer:

Option B

Step-by-step explanation:

Length of the rectangular sand box is given by the function,

F(x) = 3x³ + 6x - 2

Width of the sand box is represented by the function,

W(x) = 2x² - 4

Area function for the sand box will be,

Area of a rectangle = Length × Width

F(x) × W(x) = (3x³ + 6x - 2)(2x² - 4)

                 = 2x²(3x³ + 6x - 2) - 4(3x³ + 6x - 2)

                 = 6x⁵+ 12x³ - 4x²- 12x³- 24x + 8

                 = 6x⁵- 4x²- 24x + 8

Therefore, Area function will be represented by a polynomial degree of 5.

Option B will be the answer.

3 0
3 years ago
X2 +x − 4 = 0
Rus_ich [418]

Answer:

  • a=1
  • b=1
  • c=-4
  • x =  (-1 ±√17)/2

Step-by-step explanation:

The coefficient of x^2 is "a". That is 1.

The coefficient of x is "b". That is 1.

The constant term is "c". That is -4.

The values of a, b, and c are 1, 1, and -4, respectively.

_____

The solution is ...

  x = (-b ±√(b^2-4ac))/(2a)

Filling in the values of a, b, and c, this is ...

  x = (-1 ±√(1^2 -4·1·(-4)))/(2·1)

  x = (-1 ±√17)/2

3 0
3 years ago
the price of grapes at the grocery store is 1.44 per pound. There are approximately 0.45 kilograms in a pound. To the nearest pe
4vir4ik [10]
1 kg = 1pound/0.45=2.2222(2) pounds
1.44*2.222(2)=3.11 dollars per kilogram
Price of grapes is 3.11 dollars per kilogram
6 0
3 years ago
2 miles in 3/4 of an hour
Valentin [98]

Answer:

The answer is 15 minutes

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Mr. Frye distributed $126 equally among his 4 children for their weekly allowance. How much money did each child receive?
Karo-lina-s [1.5K]

Answer:

$31.50

Step-by-step explanation:

If you divide $126 by 4, since there is $126 and he wants to divide it <u>equally </u>between his 4 children. If you divide that into a calculator, you'll get $31.5 or $31.50.

6 0
3 years ago
Read 2 more answers
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