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3 years ago

Robert is using the following data samples to make a claim about the house values in his neighborhood:

Mathematics

2 answers:

Natasha2012 [34]3 years ago

7 0

Answer:

He should use the mean because there are no outliers that affect the mean.

Step-by-step explanation:

luda_lava [24]3 years ago

3 0

Both mean and median are measures of the center of a set of data.
Mean is normally preffered to the median except if there is an outlier that has a tendency to affect the mean.
An outlier is a data point that significantly differs from the other data points in a sample.
In the data set above, there is no outlier that will affect the mean.
Therefore, he should use the mean because there are no outliers that affect the mean.

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X + 2y = 7<br> 3x - 2y = -3

VladimirAG [237]

Use Subtraction

1. Subtract
x+2y=7
3x-2y=-3
-------------
4x+0y=4 SIMPLIFY 4x=4

2. DIVIDE

4x=4
x=1

Substitute that into either of the original equations to get x=1, y=3

4 0

3 years ago

Consider the function f(x) = x^{2/3} on the interval [-1,8].

zhannawk [14.2K]

The right option is (c). The Mean Value Theorem does not apply since f(x) is not differentiable on (-1,8). Because the derivative of f is 2/3 x^(-1/3) which is undefined at x=0.So, that would imply that it is not differentiable along the interval.

5 0

3 years ago

A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is

Scorpion4ik [409]

Answer:

26 ounces of 55% solution
104 ounces of 80% solution

Step-by-step explanation:

Let x represent the quantity of 80% solution. Then 130-x is the amount of 55% solution. The total amount of salt in the mix is ...

0.80x +0.55(130 -x) = 0.75·130

0.25x = 0.20·130 . . . . . . . subtract 0.55(130)

x = 0.20/0.25(130) = 104

130-x = 26

She should use 26 ounces of 55% solution and 104 ounces of 80% solution.

5 0

4 years ago

A train travels from Washington DC to new york(225 miles). The train departs at 4:55 PM and arrives in New York at 7:55 PM. What

mylen [45]

Answer:

The average speed is:

$\var{v}=75\: miles/h$

Step-by-step explanation:

The average speed equation is given by:

$\var{v}=\frac{\Delta x}{\Delta t}$

Were:

Δx is the displacement (225 miles)
Δt is the change in time (3 hours)

Then we have:

$\var{v}=\frac{225}{3}$

$\var{v}=75\: miles/h$

I hope it helps you!

4 0

3 years ago

Jenna has at most $100 to spend on clothes. She wants to buy a pair of jeans for $29 and spend the rest on shirts. Each shirt co

maw [93]

Answer:

5 shirts (read explanation)

Step-by-step explanation:

14x+29=100

14x=71

x=5.1

She can buy 5 shirts

8 0

3 years ago