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Ilya [14]
2 years ago
6

I don't get this at all

Mathematics
1 answer:
Anna007 [38]2 years ago
8 0
Δy/Δx is nothing but the slope and slope = rise/run .

Look up in the FIRST graph; From the lower point on the line draw a // to x-axis and from the higher point draw a // to y-axis. Note the point of intersection, their coordinates are (6, 3) [ x=6 = run and y= 3 = rise)
Or Δy = rise = 6    and Δx = run = 3, hence Δy/Δx  = 6/3 = 1/2 = slope.

Do the same thing with the 2nd graph:
Δy = 3 and  Δx = - 2 (you are counting from right to left), then 

Δy/Δx = 3/(-2)  and Δy/Δx = -3/2

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What is the domain of the function f(x)=45/(x-23)?
galben [10]
Domain is the set of numbers you can use
usually, domain=all real numbers except those that divide by zero

so find those exceptions
find what numbers make deonenator equal to 0 and exclude them
x-23 is denom
x-23=0
x=23

doman is all real numbers except 23
5 0
3 years ago
Read 2 more answers
The sum of three consecutive even numbers is one hundred sixty-two. What is the smallest of the three numbers?
zepelin [54]
Since the numbers are consecutive, they must be near each other in size, and therefore near one-third of 168. And since the lower number is -2 off the middle, and the upper number is +2 from the middle, the middle number must be exactly one-third of 168—otherwise the sum of the three could never be 168. Labelling the three consecutive numbers as x, y, and z:

x + y + z = 168

(y-2) + y + (y+2) = 168.

3y = 168

y = 56

therefore the smallest number (x) = 54.
436 viewsView upvotes

1




Related Questions (More Answers Below)
3 0
2 years ago
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Wha is 2+2 someone help me
katrin2010 [14]

Answer:

4 is the correct answer.

8 0
2 years ago
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Solve the equation x – 5 = 0.1(x + 5) for x. Round your answer to the nearest hundredth.
Nadusha1986 [10]

Answer:

x=6.111....

Step-by-step explanation:

x-5=0.1(x+5)

distribute 0.1 into (x+5)

x-5=0.1x+0.5

subtract 0.1x on both sides

x-0.1x-5=0.5

combine like terms

0.9x-5=0.5

add -5 on both sides

0.9x=5.5

divide both sides by 0.9

\frac{0.9x}{0.9} =\frac{5.5}{0.9}

x=55/9 or 6.11111.......

hope this helps

7 0
3 years ago
........................
Alex73 [517]

Answer:

d= 90 degrees

e= 99 degrees

f= 81 degrees

Step-by-step explanation:

To find d, you know that the other side is equal to 90. Because two sides that are opposite of each other must be equal to 180, you do 180-90 which is 90 to get d. Therefore, d=90 degrees. 99 degrees and e are alternate interior angles so that means they have to be the same. Because f is on the other side of 99 degrees and two sides that are opposite of each other must equal 180 degrees, you have to do 180-99 which is equal to 81 degrees. Therefore, d=90 degrees, e=99 degrees, and f=81 degrees

If this answer has helped you, please mark this answer as brainliest

5 0
2 years ago
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