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ivann1987 [24]
2 years ago
15

Fin find the 31st term in -3, -5, -7, -9

Mathematics
1 answer:
vaieri [72.5K]2 years ago
6 0

Answer:

-63

Find common difference:

  • -5 -(-3)
  • -5 + 3
  • -2

nth term:

  • a + (n-1)(d)      <u>[where a is first term, d is common difference]</u>
  • -3 + (n-1)(-2)
  • -3 -2n + 2
  • -2n -1

So 31st term:

  • -2(31) -1
  • -63
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IRINA_888 [86]

Answer:

the first slot is 6.3 and the second is 14.7

Step-by-step explanation:

you divide 10.5 and 5 to find out how many trees you need to build one cabin. when you divide them, you get 2.1. you then multiply 2.1 to how ever many cabins are being built

6 0
3 years ago
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Some body please help me!!!!!!
VladimirAG [237]

Surface area of a cube = 486 square inches

Solution:

Given each side of a cube = 9 inches

Net of a cube has 6 squares.

Area of square = side × side

Area of 1 square = 9 × 9 = 81 square inches

Surface area of a cube = Area of 6 squares

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7 0
3 years ago
Noah says that 9X minus 2X plus 4X is equivalent to 3X because the subtraction sign tells us to subtract everything that comes a
lesantik [10]

Answer:

False

Step-by-step explanation:

It is given that Noah thinks :

9x - 2x + 4x = 3x   as the subtraction sign after 9x tells us to subtract everything that comes after 9x.

This is wrong as according to the BODMAS rule, we have to do the addition operation first and then followed by subtraction operation.

That is

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⇒ (9x -2x)+ 4x

⇒ 7x + 4x

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3 years ago
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V = (4 / 3)πr^3
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V = (4/3) π (45)^3
V= π (4/3) (91,125)
Your answer with out pi is...
V= (68,343.75) π cm^3
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goldfiish [28.3K]

Answer:

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3 years ago
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