MATHEMATICS HIGH SCHOOL

Point E is located at coordinates (-7, -5). Point F is located at the coordinates (-2, 7). What is the length of EF?A. 21 units
B. 17 units
C. 13 units
D. 15 units

Answers

Answer 1
Answer:

The length EF is 13 units

The coordinates of the points are given as:

Point E = (-7,-5)

Point F = (-2,7)

The length EF is calculated using the following distance formula

EF =√((x_2 - x_1)^2 + (y_2 -y_1)^2)

This gives

EF =√((-2+ 7)^2 + (7+5)^2)

EF =√(169)

Evaluate the root of 169

EF =13

Hence, the length EF is 13 units

Read more about distance at:

brainly.com/question/17206319
Answer 2
Answer:

Answer: 17

Step-by-step explanation:

I did the diagnostic

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A DVD store charges $4.70 for each day, a DVD is rented. The store also gives you a dollar off if the DVD is returned before 5 days. a.Write a rule to represent the rental charges. b. How much will you pay if you return the DVD after 4 days? 7 days?

Answers

Answer:

For four days it would be $19.8. For seven days it would be $24.9

Step-by-step explanation:

4 days:

$4.70 x 4 + 1= 19.8

7 days:

$4.70 x 7 = $24.9

I took away 1 from the 4 day equation because the question said you get a dollar off if you return the dvd before 5 days.

Hope this helps!

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Which type of function best models the given data?
(1) linear function with a negative rate of change
(2) linear function with a positive rate of change
(3) exponential decay function
(4) exponential growth function

Answers

In this exercise we need to have knowledge about functions in order to identify the function that corresponds to the values ​​informed, like this:

Letter D

When dealing with the growth or decrease of several values, we find the exponential function, which can be described as:

  • exponential function, in mathematics, a relation of the form y = ax, accompanying the liberated variable x ranging over the whole genuine in existence number line as the example of a positive number a. Probably ultimate influential of the rapid change functions happen y = ex, every now and then composed y = exp (x),

See more about functions at brainly.com/question/5245372
Its d.exponential growth function b/c how it is written and how big it gets really fast. :) hope this helps

do the points on the line y=4/11x -5 have a slope of the y coordinate to the x coordinate for any point on the line except the y intercept? explain your answer.

Answers

y = (4/11)x - 5 
the slope of this line is 4/11, and the y-intercept is -5
When the line crosses the y axis, that is the y-intercept is when the value of x is zero:
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Find the distance between the points 6 + 5i and 1 – 2i.

Answers

For edgeunity students it’s approximately 8.6
This didnt get answered so Ill answer it.  Its simple.

The distance between 6 and 1 is going to be 5. (or in some cases, -5)

The distance between +5i and -2i is going to be 7i (or in some cases, -7i)

So depending on how the problem defines the distance, it is either 5 + 7i or -5 - 7i

I need help explain plz

Answers


When you need to divide one fraction by another one,
here's what you do:

-- Flip the second fraction over.
-- Then multiply them.

================================

2/9  divided by  5/12  =  2/9  times  12/5

When you multiply fractions, you multiply the numerators to get the numerator,
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2/9  times  12/5  =  (2 times 12) / (9 times 5)  =  24/45  =  8/15
HI. So our problem is: 2/9 ÷ 5/12, lets start out with what I explained earlier in the other problem: KCF, which represents: Keep Change Flip, you can always use this for dividing, so what we do: Keep 2/9 we Change the ÷ sign to a × (multiply sign) and we Flip 5/12 to 12/5 (improper fraction)... So what is our problem now? : 
2/9*12/5= (12*2=24) (5*9=45) So what do we have? 24/45 :) And for simplest form... you can see it is not equal :) Hope that isn't too long! 

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Answers

210 degrees is a third quadrant degree angle that is in between 180 degrees and 270 degrees. So we expect that the cosine of this angle is equal to a negative value. In this case, the terminal angle of 210 degrees is 30 degrees. Hence, negative cosine  of 30 deg is equal to -sqrt 3/2
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