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lubasha [3.4K]
3 years ago
13

1. What is the perimeter, and area, of a square with a side length of 3 inches?

Mathematics
2 answers:
pogonyaev3 years ago
8 0

perimeter: 12 inches

area: 9 inches

Pachacha [2.7K]3 years ago
8 0

Perimeter: 12 3+3+3+3

Area:9 3x3

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katovenus [111]
5 tons are 10k pounds
The movie was 1hr and 35 minutes 
7:05 PM Amar got home. He got home at 7:05 PM because the movie ended at 6:20 and it took him 45 minutes, 20+45 would be 65.

Sorry for not answering the other ones,I hope for what i answered helps.
5 0
3 years ago
Your math teacher tells you that the next test is worth 100 points and contains 38 problems. Multiple-choice questions are worth
rusak2 [61]
If we assume that
x isthe number of multiple choice questions, and y is the number of word problems, we can write a system of equations like:
{ x + y = 38
{ 2x + 5y = 100

If we multiply the first equation by -2 we get:
{ -2x-2y = -76
{ 2x + 5y = 100

Now if we add both equations we get only equation with 1 unknown (y) :

3y = 24 ⇒ y = 8

Substituting the calculated value to the first equation we get:

x + 8 = 38 ⇒ x = 30

The solution:
{ x = 30
{ y = 8

means that:
The test had 30 multiple choice questions, and 8 word problems.
4 0
3 years ago
Someone help lol thx ​
emmainna [20.7K]

Answer:

which question? you want me to answer

Step-by-step explanation:

7 0
3 years ago
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Composition of Functions math help
sergij07 [2.7K]

Answer:

I believe it's 1.

Step-by-step explanation:

4 0
3 years ago
A city police officer using radar checked the speed of 26 cars as they were travelling down a city street and the data is given
pychu [463]

Answer: The distribution of the data set is positively skewed.

<u>Explanation: </u>

In order to see whether the given data set is symmetric, positively skewed or negatively skewed, we will find the mean, median and mode of the given data set.

For symmetric distribution, Mean = Median=Mode

For positively skewed distribution, Mean > Median>Mode

For negatively skewed distribution, Mean < Median

The mean of the given data set is given below:

Mean = \frac{27+23+22+38+43+24+25+23+22+54+31+30+29+48+27+25+29+28+26+33+25+21+23+34+20+23}{26}

                =\frac{753}{26}

                =28.96

Now, the Median is:

To find the median we need to sort the data in ascending order as:

20,21,22,22,23,23,23,23,24,25,25,25,26,27,27,28,29,29,30,31,33,34,38,43,48,54

Median=\left(\frac{N+1}{2} \right)^{th} item

                   =\left(\frac{26+1}{2}\right)^{th} item

                   =13.5^{th} item

                   =26+0.5 \times (27-26)

                   =26.5

\therefore Median = 26.5

The mode is the most frequently occurring observation. Therefore the mode is:

Mode=23

Since the Mean >Median>Mode, therefore the distribution of the given data set is positively skewed.


5 0
4 years ago
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