answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Agata [3.3K]
2 years ago
13

Rosa says she can break this array(6 rows,8 in each row) into 3 different sets of two smaller arrays.Is Rosa correct.Explain

Mathematics
1 answer:
snow_tiger [21]2 years ago
4 0

Answer:

Rosa is correct

Step-by-step explanation:

Rosa has array 6 \times 8 (6 rows and 8 columns). She can break this array into two smaller arrays in such ways:

  • 1st array 5\times 8 (5 rows and 8 columns) and 2nd array 1\times 8 (1 row and 8 columns);
  • 1st array 4\times 8 (4 rows and 8 columns) and 2nd array 2\times 8 (2 rows and 8 columns);
  • 1st array 3\times 8 (3 rows and 8 columns) and 2nd array 3\times 8 (3 rows and 8 columns);
  • 1st array 6\times 1 (6 rows and 1 column) and 2nd array 6\times 7 (6 rows and 7 columns);
  • 1st array 6\times 2 (6 rows and 2 columns) and 2nd array 6\times 6 (6 rows and 6 columns);
  • 1st array 6\times 3 (6 rows and 3 columns) and 2nd array 6\times 5 (6 rows and 5 columns);
  • 1st array 6\times 4 (6 rows and 4 columns) and 2nd array 6\times 4 (6 rows and 4 columns).

So, there are even more than 3 different ways.

You might be interested in
Herb, a tennis player, has been struggling to develop a more consistent serve. He made the following remark to his partner durin
klasskru [66]

Answer:

Check once on regression to the mean

Check once on the availability hubristic

Check twice on sink cost effect

Check twice on the present aim standard of rationality.

Step-by-step explanation:

Since herb is driven by emotion and happenstance and not by actual overall statistics this seems like the way to answer the question.

5 0
2 years ago
give an example on an addition problem in which you would and would not group the addends differently to add
Murrr4er [49]
Addends are any of the numbers added together in an equation. 

The only time their grouping would matter would be if there were parentheses used to alter the normal Order of Operations. 

For ex:
2 - (8 + 3)  here, the 8 and 3 have to be grouped together before doing the subtraction.

Any addition problem without parentheses can be used for one where the grouping doesn't matter
3 0
2 years ago
Show all your work. Indicate clearly the methods you use, because you will be scored on the correctness of your methods as well
laiz [17]

Answer:

The  value is  P(A) =  0.133617

Step-by-step explanation:

From the question we are told that

  The  mean is  \mu =  7.5

  The standard deviation is  \sigma  =  0.2

  The safest water level is  between  7.2 and  7.8

Generally the probability that the selected pool has a pH level that is not considered safe is mathematically represented as

       P(A) =  1 - P(7.2 \le X  \le 7.8 )

Here  

      P(7.2 < X  < 7.8 ) = P(\frac{ 7.2 - \mu }{\sigma } <  \frac{X - \mu }{ \sigma }

Generally \frac{X - \mu }{ \sigma } =  Z (The  \ standardized \  value  \  of  X )

So

 P(7.2 < X  < 7.8 ) = P(\frac{ 7.2 - 7.5 }{0.2 } < Z    

 P(7.2 < X  < 7.8 ) = P(-1.5 < Z  

=>  P(7.2 < X  < 7.8 ) = P(Z <  1.5) - P(  Z < - 1.5)

From the z-table the probability of  (Z <  -1.5) and   (  Z <1.5)  are

    P(Z <  1.5) =  0.93319

and  

    P(Z <  -1.5) =  0.066807

So

      P(7.2 < X  < 7.8 ) =0.93319 - 0.066807

       P(7.2 < X  < 7.8 ) =0.0866383

So

   P(A) =  1 - 0.0866383

=>  P(A) =  0.133617

5 0
2 years ago
Which shows the correct first step to solving the system of equations in the most efficient manner? 3 x + 2 y = 17. x + 4 y = 19
skelet666 [1.2K]

Answer: First option.

Step-by-step explanation:

<h3> The missing picture is attached.</h3><h3></h3>

You can use these methods to solve a System of Equations and find the value of the variables:

A. Substitution method.

B. Elimination method.

In this case, given the following System of equations:

\left \{ {{3 x + 2 y = 17} \atop {x + 4 y = 19}} \right.

The most efficient method to solve it is the Substitution Method. The procedure is:

Step 1: Solve for one of the variables from the most convenient equation.

Step 2: Make the substitution into the other equation and solve for the other variable in order to find its value.

Step 3: Substitute the value obtained into the equation from Step 1 and evaluate, in order to find the value of the  other variable.

Based on this, you can identify that first step to solve the given System of equations, is solving for "x" from the second equation:

x + 4 y = 19\\\\x=-4y+19

3 0
2 years ago
Read 2 more answers
X+100+31=180. what does X=? *<br> Nour answer
mr_godi [17]

Answer:

49

Step-by-step explanation:

x + 100 + 31 = 180

x + 100 + 31 - 100 - 31 = 180 -100 -31

x = 49

5 0
2 years ago
Other questions:
  • A package is in the shape of a triangular prism. The bases are right triangles with perpendicular legs measuring 9 centimeters a
    5·2 answers
  • A new mixture of​ self-tanning &amp; moisturizing lotions for everyday use is being developed. This mixture is made by mixing 90
    10·1 answer
  • Deshawn fuels 2 yachts and 6 barges. Each boat gets 126 gallons of fuel. To find out how much fuel he needs for all boats, desha
    15·1 answer
  • John and his three brothers share a cell phone plan. The cell phone company charges a flat rate of $90 per month, which the four
    5·2 answers
  • One astronomical unit is about 93,000,000 miles. At 20,000 miles per hour, how many astronomical units can Orion travel in one h
    14·2 answers
  • If the expected production volume when there are 120 workers is approximately 131,958 units, which of the following equations wo
    7·1 answer
  • Steps for solving 4x-12=20 are shown explain how steps 3 helps the equation
    9·2 answers
  • The equation for the line of best fit is f(x) ≈ 1.8x − 5.4 for the set of values in the table. A 2-column table with 7 rows. The
    12·2 answers
  • Renee’s monthly cell phone bill depends on the number of minutes she uses the phone. Renee kept a record of her monthly bills in
    5·1 answer
  • The Benton Youth Soccer Team has 20 players on the team, including reserves. Of these, three are goalies. Today, the team is hav
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!