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lana66690 [7]
2 years ago
13

Perry has 81 red balls, which she wants to arrange in rows. If the number of balls in each row must be equal to the number of ro

ws, how many balls must there be in a row?
3
7
9
11
Mathematics
2 answers:
kotykmax [81]2 years ago
5 0
9 rows of 9 would make 81 balls
Travka [436]2 years ago
5 0
Divide 81 by 9 and you`ll get 9
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The density of a block of wood with a volume of 50 cubic centimeters and mass off 100 grams is...................
Natalija [7]
Mass  = 100  g

Volume = 50 cm³

Density :

D = m / V

D = 100 / 50

D =  2 g/cm³

answer A

hope this helps!.
4 0
3 years ago
I need help . This problem is confusing me.<br><br>​
Sholpan [36]

Answer:

The answer is 3093.

3093 (if that series you posted actually does stop at 1875; there were no dots after, right?)

Step-by-step explanation:

We have a finite series.

We know the first term is 48.

We know the last term is 1875.

What are the terms in between?

Since the terms of the series form a geometric sequence, all you have to do to get from one term to another is multiply by the common ratio.

The common ratio be found by choosing a term and dividing that term by it's previous term.

So 120/48=5/2 or 2.5.

The first term of the sequence is 48.

The second term of the sequence is 48(2.5)=120.

The third term of the sequence is 48(2.5)(2.5)=300.

The fourth term of the sequence is 48(2.5)(2.5)(2.5)=750.

The fifth term of the sequence is 48(2.5)(2.5)(2.5)(2.5)=1875.

So we are done because 1875 was the last term.

This just becomes a simple addition problem of:

48+120+300+750+1875

168      +   1050  +1875

          1218          +1875

                         3093

6 0
3 years ago
What is the distance in units between (−11, −20) and (−11, 5)
Morgarella [4.7K]
Distance = √(x₂-x₁)² + (y₂-y₁)²
d = √(-11-(-11)) + (5-(-20))²
d = √0² + 25²
d = √625
d = 25

In short, Your Answer would be 25 units

Hope this helps!
6 0
3 years ago
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It represents C -12
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3 years ago
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1 4/5 x 6 =???<br> please help
icang [17]
10 4/5 is the answer.
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