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2 years ago

Enya walked 2 km 309 m from school to the store. Then, she walked from the store to her home. If she

Mathematics

1 answer:

serg [7]2 years ago

6 0

Her home was 2 km 691 m from the store. (5 km = 5000m --> 5000-2309)

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Help pls help plz help plz

ratelena [41]

Answer:

Step-by-step explanation:

(4+8)+6 = (6+4)+n

18 = 10+n

18-10 = n

n = 8

7 0

2 years ago

Jessie bought 4 balls of wool to knit sweaters for her children, and 5 balls of wool for herself. Then she spent $9.45 on knitti

Ilia_Sergeevich [38]

Step-by-step explanation:

first your going to break down your total then since you have nine balls of yarn you going to take out the 9.45

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2 years ago

Explain now!!! And tell how

Elenna [48]

Answer:

1.33 ounces

Step-by-step explanation:

Divide the food by the cats. 8/6=4/3≈1.33 ounces.

4 0

2 years ago

Read 2 more answers

According to the scatterplot below, which statement is correct?

FinnZ [79.3K]

Answer:

Hey there

Step-by-step explanation:

The input, or independent variable, is years in operation.

Step-by-step explanation:

In an ordered pair (x, y), the independent variable or input is x and y is the dependent variable or the output.

Therefore, the values on x-axis determine the results or output on y-axis.

The ordered pairs (x, y) are:

(1, 11) ⇒ there are 11 enrollees on Year 1

(2, 33) ⇒ there are 33 enrollees on Year 2

(3, 39) ⇒ there are 39 enrollees on Year 3

(4, 58) ⇒ there are 58 enrollees on Year 4

(5, 85) ⇒ there are 85 enrollees on Year 5

Where:

x are values on the x-axis that refers to number of years in operation

y are values on the y-axis that refers to the corresponding numbers of enrollees for each year.

Even without the graph, the correct statements i:

The input, or independent variable, is years in operation.

- brainly user

8 0

1 year ago

Read 2 more answers

One hundred teachers attended a seminar on mathematical problem solving. The attitudes of representative sample of 12 of the tea

andrew11 [14]

Answer:

a) 1.92

b) 3.25

c) 1.5

d) -5.23

Step-by-step explanation:

We are given the following in the question:

4, 7, -1, 1, 0, 5, -2, 2, -1, 6, 5, -3

a) mean of score change

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{23}{12} = 1.92$

b) standard deviation for this population

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n}}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

Sum of squares of differences = 126.92

$\sigma = \sqrt{\frac{126.92}{12}} = 3.25$

c) median change score

$Median:\\\text{If n is odd, then}\\\\Median = \displaystyle\frac{n+1}{2}th ~term \\\\\text{If n is even, then}\\\\Median = \displaystyle\frac{\frac{n}{2}th~term + (\frac{n}{2}+1)th~term}{2}$

Sorted data: -3, -2, -1, -1, 0, 1, 2, 4, 5, 5, 6, 7

Median =

$\dfrac{6^{th} + 7^{th}}{2} = \dfrac{1+2}{2} = 1.5$

d) change score that is 2.2 standard deviations below the mean.

$x = \mu - 2.2(\sigma)\\x = 1.92-2.2(3.25)\\x = -5.23$

4 0

2 years ago