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3 years ago

I am confused can someone help me

Mathematics

1 answer:

andreev551 [17]3 years ago

8 0

Answer:

Jeffery is correct. All these points are on the same line because the slope between (-3, 2) and (0, -4), which are coordinates from each of the pairs above, are equal to -2.

Hope this helped.

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What is the area of the right triangle 5 centimeters high with a base of 9 centimeters

seropon [69]

The area of the given right triangle is: 22.5 cm².

<h3>How to Find the Area of a Right Triangle?</h3>

The area of a right triangle with a base of "b" and an height of "h" can be determined using the following formula:

Area of triangle = 1/2bh = 1/2(base)(height).

Given that the right triangle has the following dimensions:

Height (h) = 5 cm

Base (b) = 9 cm

Area of triangle = 1/2bh = 1/2(5)(9)

Area of triangle = 1/2(45)

Area of triangle = 22.5 cm²

Thus, the area of the right triangle is: 22.5 cm².

Learn more about the area of triangle on:

brainly.com/question/21735282

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8 0

1 year ago

What is an example of when you would want consistent data and, therefore, a small standard deviation?

steposvetlana [31]

Answer:

12.1, 12.3,12.4,12.5,12.3,12.1,12.2

$\bar X= \frac{12.1+12.3+12.4+12.5+12.3+12.1+12.2}{7}=12.271$

And for the standard deviation we can use the following formula:

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

And after replace we got:

$s = 0.1496$

And as we can ee we got a small value for the deviation <1 on this case.

Step-by-step explanation:

For example if we have the following data:

12.1, 12.3,12.4,12.5,12.3,12.1,12.2

We see that the data are similar for all the observations so we would expect a small standard deviation

If we calculate the sample mean we can use the following formula:

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

And replacing we got:

$\bar X= \frac{12.1+12.3+12.4+12.5+12.3+12.1+12.2}{7}=12.271$

And for the standard deviation we can use the following formula:

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

And after replace we got:

$s = 0.1496$

And as we can ee we got a small value for the deviation <1 on this case.

8 0

3 years ago

What’s the equation ? (2,-2) ( 4,1)

oksano4ka [1.4K]

Answer:

y = 3 2x − 5

Step-by-step explanation:

5 0

3 years ago

What value of x would result in the numerical value of zero in the expression 7+x+(−10) ?

MAXImum [283]

Answer:

Step-by-step explanation:

7 plus three is 10, adding -10 to that equals zero.

4 0

3 years ago

What are the domain and range of the function on the graph?

anygoal [31]

Another way to identify the domain and range of functions is by using graphs. Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the

x -axis. The range is the set of possible output values, which are shown on the

y -axis. Keep in mind that if the graph continues beyond the portion of the graph we can see, the domain and range may be greater than the visible values.

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8 0

3 years ago