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DENIUS [597]
3 years ago
10

Insert 5 arithmetic means between -1 and 11

Mathematics
1 answer:
Anni [7]3 years ago
7 0

Answer:

Step-by-step explanation:

-1 1 3 5 7 9 11

That's the answer. If you need a method or a formula, that's a little harder.

L = a + (n - 1)*d

a = -1

L = 11

n = 7

or n is the hard part. If you have 5 means, then you have 6 spaces. So n must be 7 in all

11 = -1 + (7 - 1)*d                   add 1 to both sides. Combine the brackets

11+1 = -1+1+ 6*d

12 = 6d                               divide by 6

12/6 = d

2 = d

What this tells you is that each term has 2 added to it to get to the next one.

   

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Question The set {78, 55, 22, 16, 84, 75, 33, 69, 58, 59} represents the number of stones in ten pouches. What is the midrange o
Citrus2011 [14]
<h3>Answer:  50</h3>

Explanation:

The original set

{78, 55, 22, 16, 84, 75, 33, 69, 58, 59}

sorts to

{16, 22, 33, 55, 58, 59, 69, 75, 78, 84}

The min and max are 16 and 84 respectively

Midrange = (min + max)/2 = (16+84)/2 = 50

3 0
2 years ago
Laura wants to cover a box with fabric:
Annette [7]

Answer:

1,578

Step-by-step explanation:

I took the test

6 0
3 years ago
Write the first four terms in the following sequences. A(n+1)=A(n)−5 for n≥1 and A(1)=9 .
luda_lava [24]

Answer:

Step-by-step explanation:

A(1) = 9

A(n+1) = A(n) - 5

n = 1 ;     A(1+1) = A(1) - 5

             A(2) =  9 - 5

             A(2) = 4

n = 2 ;     A(2+1) = A(2) - 5

             A(3) =  4 - 5

             A(3) = 1

n = 3 ;     A(3+1) = A(3) - 5

             A(4) =  1 - 5

             A(4) = -4

n = 4 ;     A(4+1) = A(4) - 5

             A(5) =  -4 - 5

             A(5) = -9

First four terms are: 9 , 4 , 1 , -4 , - 9

4 0
3 years ago
I need helppppppppppp
sp2606 [1]
To help in the future, you can follow the equation
 
Whole * Percent = whole

In this case, the whole is 48 and the percent is 5/8

48 / 5/8 = 30


7 0
4 years ago
Could 2.8cm, 4.0cm, and 2.8cm be the side lengths of a triangle?<br><br><br>A.) no<br><br>B.) yes
Sholpan [36]

Yes, 2.8 cm, 4.0 cm, and 2.8 cm could be the side lengths of a triangle ⇒ B

Step-by-step explanation:

In any triangle:

  • The sum of any two sides is greater than the third side
  • Add the smallest two numbers if their sum is greater than the largest number, then the numbers can formed the lengths of sides of a triangle

∵ The lengths of the segments are 2.8 cm , 4.0 cm and 2.8 cm

∵ The smallest segments are 2.8 cm , 2.8 cm

- Find their sum

∴ The sum of their length = 2.8 + 2.8

∴ The sum of their length = 5.6 cm

The length of the largest segment is 4.0 cm

∵ 5.6 cm > 4 cm

∴ 2.8 cm , 4.0 cm , 2.8 cm can formed a triangle

Yes, 2.8 cm, 4.0 cm, and 2.8 cm could be the side lengths of a triangle

Learn more:

You can learn more about the triangles in brainly.com/question/10677255

#LearnwithBrainly

8 0
4 years ago
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