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coldgirl [10]
3 years ago
14

Arrange the summation expressions in increasing order of their values

Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
3 0
Sum of n terms  = a1  (r^n-1/ (r-1)

Sum of first one = 3 * (4^5 - 1) / 3  =  1023
  ..           2nd =  5 * (6^2 - 1) / 5 =  35
   ..            3rd = 5 ^4 - 1 / 4 =  156
   ..            4th =  4 * (5^4 - 1) / 4 = 624

So in increasing order its   2nd, 3rd, 4th and first.
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LUAHLILULL-----
Ann [662]

x+y=19 and 6.5x+3y=74.5 can be used to determine the number of gifts wrapped and number of giftbags prepared where x represents the wrapped gifts and y represents giftbags.

Step-by-step explanation:

Let,

x be the gift wrapped with wrapping paper.

y be the gifts in gift bag.

Time for wrapping one gift = 6.5 minutes

Time for doing 1 gift bag = 3 minutes

Total gifts = 19

Total time = 74.5 minutes

According to given statement;

x+y=19

6.5x+3y=74.5

x+y=19 and 6.5x+3y=74.5 can be used to determine the number of gifts wrapped and number of giftbags prepared where x represents the wrapped gifts and y represents giftbags.

Keywords: linear equation, addition

Learn more about linear equations at:

  • brainly.com/question/788903
  • brainly.com/question/774670

#LearnwithBrainly

3 0
3 years ago
Solve this inequality for x.<br><br> 81 - 1 1/5x &lt;_ 55
dsp73

Answer:

(61. 8181..., ~)

Step-by-step explanation:

-11/5x<-136

x>680/11

x>61. 8181...

6 0
3 years ago
Find the area of each figure. Round to the nearest tenth if necessary.
Nataly_w [17]

Answer:

220ft^2

Step-by-step explanation:

In red: 12ft - 10ft = 2ft and there 2 sides so 2ft / 2 = 1ft

In blue: 18ft - 12ft = 6ft

The missing area in dark blue: 6ft x 1ft = 6 / 2 = 3

total rectangle area: 12ft x 18ft = 216

216 - (3 + 3) = 216 - 6 = 200            subtract 6, we added that area in

8 0
1 year ago
Please help guys.......​<br>equation practice
nignag [31]

Answer:

Step-by-step explanation:

m∠AOC = 180 as it is straight line

m∠AOC = m∠AOB + m∠BOC

m∠AOB + m∠BOC = 180

3x + 124 +   6x + 29 = 180

9x + 153 = 180

9x = 180 - 153

9x = 27

x = 27/9

x = 3

m∠BOC  = 6x +29 = 6*3 + 29 = 18 +29 = 47          

7 0
3 years ago
Find the area of the shaded figure. To do so, subtract the area of the smaller
Vikentia [17]

Answer:

x⁴ - 8x² + 9

Step-by-step explanation:

The Area of the smallest square is A1 = x . x = x²

The Area of the second square is A2 = ( x² - 3 )(x² - 3)

A2 = x⁴ - 3x² - 3x² + 9

A2 = x⁴ - 6x² + 9

The Area of the Shaded shape is A2 - A1

x⁴ - 6x² + 9 - x²

x⁴ - 8x² + 9

3 0
2 years ago
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