All categories

3 years ago

What is the midpoint of a line segment with endpoints (−2, 5) and (10,−9)

Mathematics

1 answer:

Karo-lina-s [1.5K]3 years ago

4 0

( x , y ) = ( - 2 + 10 / 2 , 5 - 9 / 2 )
x = 8/2
x = 4

y = - 4/2
y = - 2

midpoint = ( 4 , - 2 )

You might be interested in

Hallar M x M / x + y =4

hjlf

Answer:

M x M / x + y =4

Step-by-step explanation:

6 0

4 years ago

For questions 1 - 2, what are the excluded functions of the function?

PilotLPTM [1.2K]

1.) Function of x. $f (x) = \frac{4x}{9} -45$
Function of y. $f (y) = \frac{405}{4} + \frac{9y}{4}$
2.)Function of y. $f (y)= \frac{7}{2(y-48)}$
Function of x. $f (x) = \frac{7}{2x} + 48$

6 0

4 years ago

A sample of 8 buttons is randomly selected and the following diameters are measured in inches. Give a point estimate for the pop

kenny6666 [7]

Answer:

$\bar X= \frac{1.83+1.85+1.79+1.73+1.69+1.74+1.76+1.70}{8}= 1.76125$

Now we can estimate the population variance with the sample variance given by:

$s^2 = \frac{\sum_{i=1}^n (x_i -\bar X)^2}{n-1}$

And replacing we got:

$s^2 = 0.0033839$

And the estimator for the population deviation $\sigma$ is given by :

$\hat \sigma = \sqrt{s^2}= \sqrt{0.0033839}= 0.058172$

Step-by-step explanation:

For this case we have the following data given:

1.83,1.85,1.79,1.73,1.69,1.74,1.76,1.70

First we need to calculate the mean with the following formula:

$\bar X= \frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X= \frac{1.83+1.85+1.79+1.73+1.69+1.74+1.76+1.70}{8}= 1.76125$

Now we can estimate the population variance with the sample variance given by:

$s^2 = \frac{\sum_{i=1}^n (x_i -\bar X)^2}{n-1}$

And replacing we got:

$s^2 = 0.0033839$

And the estimator for the population deviation $\sigma$ is given by :

$\hat \sigma = \sqrt{s^2}= \sqrt{0.0033839}= 0.058172$

7 0

4 years ago

What is the area of this triangle?<br><br> A=bh2

Galina-37 [17]

Alright, so you know that the formula for the area of a triangle is a=bh/2

First start out by identifying your base and height.

Base is the side that the shape is "standing on", in this case, that would be 9cm.

Now, the height is the measurement that is perpendicular (90 degrees to the base), which in this case is 12 cm.

Now, plug these values into your formula

(12)(9) /2 = 54 cm squared! hope this helps :)

8 0

3 years ago

HELPPP PLEASE I DON'T UNDERSTAND!!

DiKsa [7]

Answer:

Step-by-step explanation:

If all the coordinates are placed in a graph, the line would be straight. This would mean it is linear.

7 0

3 years ago

Read 2 more answers