several students in Ashton 's class were randomly selected and asked how many text messages they sent yesterday. Their answers were 1 ,0 ,10 , 7 , 13, 2 , 9 ,15 ,0 , 3 .find the mean and the median for this data .

Answers

Answer 1

Answer: Mean is 6 because once you add up all the numbers it will be 60, and dividing that number by how many you have will give you 6

Median is 5 because once you place the numbers in order, 0, 0, 1, 2, 3, 7, 9, 10, 13, 15 the middle number in the set is between 3 and 7 and once you find the mean of the two you get 5

Answer 2

Answer: Mean: 6 ADD up all the numbers and then divide by 10. SO 60÷10=6.
Median: 5 Put them in order and find the middle number. In this case 3 and 7 are in the middle. SO add them up and divide by 2. 3 + 7 =10.

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Square roots of -1.69 is

Answers

Answer:

1.3i

Step-by-step explanation:

Answer:

1.3

Step-by-step explanation:

it would turn from a negative to a positive.

How can I solve this system of linear equation by substitution 3x+y=11 and -2x+y=1

Answers

We can answer this question by solving each equation for one variable, and then substituting.

3x + y = 11 Given
y = -3x + 11 Subtract 3x from both sides

This equation is now solved for y. Now, let's do the other equation. Make sure to solve it for the same variable.

-2x + y = 1 Given
y = 2x + 1 Add 2x to both sides

Now, let's set both equations equal to each other, since they both equal y.

2x + 1 = -3x + 11 Set both equations equal to each other
1 = -5x + 11 Subtract 2x from both sides
-10 = -5x Subtract 11 from both sides
2 = x Divide both sides by -5

Now, let's substitute x in for one of the equations we found earlier, so that we can find y.

y = 2x + 1 Given
y = (2)(2) + 1 Substitute the x-value, 2
y = 4 + 1 Multiply
y = 5 Add

So, x = 2 and y = 5.

Hope this helps!

First will make Equation take on the form of y = mx + b. I've cchosen the second Equation:

y = 2x + 1

Now substitute this equation in for y into the other equation and solve:

3x+y = 11
3x+ (2x + 1)=11
5x + 1 = 11
5x = 11 - 1
5x/5= 10/5
x = 2

You can now plug this x-value back into either equation, and solve for y:

y = 2(x) + 1
y = 2(2) + 1
y = 5

The circumference (C) of a swimming pool is 47 feet. Which formula can you use to find the radius (r) if you know that C = 2πr ?

Answers

to find the formula to find radius, solve for r using the formula for circumference.

to solve:
1. divide each side by 2 $\pi$
2. you get r = c/2 $\pi$

C= 2\pi r
r= \frac{C}{\pi} [

Describe the steps you used to solve the equation and find the amount of Carrie’s allowance. Linear equation: 1 4 a + 1 3 a + 8 = 22

Answers

Sample Response: First, the like terms had to be combined using the lowest common denominator (LCD). Then the subtraction property of equality was used to isolate the variable term. Finally, both sides of the equation were multiplied by the reciprocal of the coefficient to solve for a.

Which angle is coternal with 130 degrees?

Answers

Answer:

- 230°

Step-by-step explanation:

A coterminal angle is the given angle ± 360n ( where n is an integer )

Given 130°

Then a coterminal angle = 130° - 360° = - 230°

OR 130° + 360° = 490°

Raj opens his bank account with $500. He deposits $40 each month. A) write a function that shows the amount in Raj's account after m months. B) after how many months will Raj have $780 in his bank account?