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sesenic [268]
3 years ago
13

What is the slope of a trend line that passes through the points (1, 3) and (10, 25)?

Mathematics
2 answers:
eduard3 years ago
8 0

Answer:

The slope of a trend is equal to m=\frac{22}{9}

Step-by-step explanation:

we know that

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

we have

A(1,3)\ B(10,25)

Substitute the values

m=\frac{25-3}{10-1}

m=\frac{22}{9}

nydimaria [60]3 years ago
6 0
25-3/10-1 which is 22/9
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How do I find the complement?
likoan [24]

Let A be some subset of a universal set U. The "complement of A" is the set of elements in U that do not belong to A.

For example, if U is the set of all integers {..., -2, -1, 0, 1, 2, ...} and A is the set of all positive integers {1, 2, 3, ...}, then the complement of A is the set {..., -2, -1, 0}.

Notice that the union of A and its complement make up the universal set U.

In this case,

U = {1, 2, 3, 6, 10, 13, 14, 16, 17}

The set {3, 10, 16} is a subset of U, since all three of its elements belong to U.

Then the complement of this set is all the elements of U that aren't in this set:

{1, 2, 6, 13, 14, 17}

6 0
3 years ago
13. Tom has $14 more than you do.
puteri [66]

Answer:

46

Step-by-step explanation:

14-60 equals 46 and just go to your answer and put that in and there u go buddy

8 0
3 years ago
Which expression is equivalent to 0.7×0.23
Marina CMI [18]
The answer is D because when multiplied by 1/10 you move the decimal place of 7 one space to the left so 7 now equals .7 and when multiplied by 1/100 23 is moved two spaces to the left to make .23
3 0
2 years ago
Read 2 more answers
What is the reciprocal of 2/7​
sineoko [7]

Answer:

the reciprocal of 2/7 is 7/2. you just switch the numbers

4 0
2 years ago
3 years ago a father was 3 times as old as his son, in five years time he will be twice as old as his son, what will be the sum
ivolga24 [154]

Answer: 46 years

Step-by-step explanation:

Let the father's age be x and the son's age be y, then 3 years ago:

Father = x - 3

son     = y - 3

Then , from the first statement :

x - 3 = 3 ( y - 3 )

x - 3 = 3y - 9

x     = 3y - 9 + 3

x     = 3y - 6 .......................................... equation 1

In five years time

father = x + 5

son = y + 5

Then , from the second statement

x + 5 = 2 ( y + 5 )

x + 5 = 2y + 10

x       = 2y + 10 - 5

x       = 2y + 5 ........................ equation 2

Equating equation 1 and 2 , we have

3y -6 = 2y + 5

add 6 to both sides

3y = 2y + 5 + 6

subtract 2y from both sides

3y - 2y = 11

y = 11

substitute y = 11 into equation 1 to find the value of x

x = 3y - 6

x = 3(11) - 6

x = 33 - 6

x = 27

This means that the father is presently 27 years and the son is presently 11 years.

In four years time

father = 27 + 4 = 31

son = 11 + 4      = 15

sum of their ages in four years time will be

31 + 15 = 46 years

5 0
3 years ago
Read 2 more answers
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